text: // Version: v1.0.0-rc.6.1
  // Last commit: 2a9ce26 (2013-07-25 18:13:33 -0400)
  
  
  (function() {
  /*global __fail__*/
  
  /**
  Ember Debug
  
  @module ember
  @submodule ember-debug
  */
  
  /**
  @class Ember
  */
  
  if ('undefined' === typeof Ember) {
    Ember = {};
  
    if ('undefined' !== typeof window) {
      window.Em = window.Ember = Em = Ember;
    }
  }
  
  Ember.ENV = 'undefined' === typeof ENV ? {} : ENV;
  
  if (!('MANDATORY_SETTER' in Ember.ENV)) {
    Ember.ENV.MANDATORY_SETTER = true; // default to true for debug dist
  }
  
  /**
    Define an assertion that will throw an exception if the condition is not
    met. Ember build tools will remove any calls to `Ember.assert()` when
    doing a production build. Example:
  
    ```javascript
    // Test for truthiness
    Ember.assert('Must pass a valid object', obj);
    // Fail unconditionally
    Ember.assert('This code path should never be run')
    ```
  
    @method assert
    @param {String} desc A description of the assertion. This will become
      the text of the Error thrown if the assertion fails.
    @param {Boolean} test Must be truthy for the assertion to pass. If
      falsy, an exception will be thrown.
  */
  Ember.assert = function(desc, test) {
    Ember.Logger.assert(test, desc);
  
    if (Ember.testing && !test) {
      // when testing, ensure test failures when assertions fail
      throw new Error("Assertion Failed: " + desc);
    }
  };
  
  
  /**
    Display a warning with the provided message. Ember build tools will
    remove any calls to `Ember.warn()` when doing a production build.
  
    @method warn
    @param {String} message A warning to display.
    @param {Boolean} test An optional boolean. If falsy, the warning
      will be displayed.
  */
  Ember.warn = function(message, test) {
    if (!test) {
      Ember.Logger.warn("WARNING: "+message);
      if ('trace' in Ember.Logger) Ember.Logger.trace();
    }
  };
  
  /**
    Display a debug notice. Ember build tools will remove any calls to
    `Ember.debug()` when doing a production build.
  
    ```javascript
    Ember.debug("I'm a debug notice!");
    ```
  
    @method debug
    @param {String} message A debug message to display.
  */
  Ember.debug = function(message) {
    Ember.Logger.debug("DEBUG: "+message);
  };
  
  /**
    Display a deprecation warning with the provided message and a stack trace
    (Chrome and Firefox only). Ember build tools will remove any calls to
    `Ember.deprecate()` when doing a production build.
  
    @method deprecate
    @param {String} message A description of the deprecation.
    @param {Boolean} test An optional boolean. If falsy, the deprecation
      will be displayed.
  */
  Ember.deprecate = function(message, test) {
    if (Ember.TESTING_DEPRECATION) { return; }
  
    if (arguments.length === 1) { test = false; }
    if (test) { return; }
  
    if (Ember.ENV.RAISE_ON_DEPRECATION) { throw new Error(message); }
  
    var error;
  
    // When using new Error, we can't do the arguments check for Chrome. Alternatives are welcome
    try { __fail__.fail(); } catch (e) { error = e; }
  
    if (Ember.LOG_STACKTRACE_ON_DEPRECATION && error.stack) {
      var stack, stackStr = '';
      if (error['arguments']) {
        // Chrome
        stack = error.stack.replace(/^\s+at\s+/gm, '').
                            replace(/^([^\(]+?)([\n$])/gm, '{anonymous}($1)$2').
                            replace(/^Object.<anonymous>\s*\(([^\)]+)\)/gm, '{anonymous}($1)').split('\n');
        stack.shift();
      } else {
        // Firefox
        stack = error.stack.replace(/(?:\n@:0)?\s+$/m, '').
                            replace(/^\(/gm, '{anonymous}(').split('\n');
      }
  
      stackStr = "\n    " + stack.slice(2).join("\n    ");
      message = message + stackStr;
    }
  
    Ember.Logger.warn("DEPRECATION: "+message);
  };
  
  
  
  /**
    Display a deprecation warning with the provided message and a stack trace
    (Chrome and Firefox only) when the wrapped method is called.
  
    Ember build tools will not remove calls to `Ember.deprecateFunc()`, though
    no warnings will be shown in production.
  
    @method deprecateFunc
    @param {String} message A description of the deprecation.
    @param {Function} func The function to be deprecated.
    @return {Function} a new function that wrapped the original function with a deprecation warning
  */
  Ember.deprecateFunc = function(message, func) {
    return function() {
      Ember.deprecate(message);
      return func.apply(this, arguments);
    };
  };
  
  })();
  
  // Version: v1.0.0-rc.6-2-gaa6f429
  // Last commit: aa6f429 (2013-07-25 20:20:00 -0400)
  
  
  (function() {
  var define, requireModule;
  
  (function() {
    var registry = {}, seen = {};
  
    define = function(name, deps, callback) {
      registry[name] = { deps: deps, callback: callback };
    };
  
    requireModule = function(name) {
      if (seen[name]) { return seen[name]; }
      seen[name] = {};
  
      var mod, deps, callback, reified, exports;
  
      mod = registry[name];
  
      if (!mod) {
        throw new Error("Module '" + name + "' not found.");
      }
  
      deps = mod.deps;
      callback = mod.callback;
      reified = [];
      exports;
  
      for (var i=0, l=deps.length; i<l; i++) {
        if (deps[i] === 'exports') {
          reified.push(exports = {});
        } else {
          reified.push(requireModule(deps[i]));
        }
      }
  
      var value = callback.apply(this, reified);
      return seen[name] = exports || value;
    };
  })();
  (function() {
  /*globals Em:true ENV */
  
  /**
  @module ember
  @submodule ember-metal
  */
  
  /**
    All Ember methods and functions are defined inside of this namespace. You
    generally should not add new properties to this namespace as it may be
    overwritten by future versions of Ember.
  
    You can also use the shorthand `Em` instead of `Ember`.
  
    Ember-Runtime is a framework that provides core functions for Ember including
    cross-platform functions, support for property observing and objects. Its
    focus is on small size and performance. You can use this in place of or
    along-side other cross-platform libraries such as jQuery.
  
    The core Runtime framework is based on the jQuery API with a number of
    performance optimizations.
  
    @class Ember
    @static
    @version 1.0.0-rc.6
  */
  
  if ('undefined' === typeof Ember) {
    // Create core object. Make it act like an instance of Ember.Namespace so that
    // objects assigned to it are given a sane string representation.
    Ember = {};
  }
  
  // Default imports, exports and lookup to the global object;
  var imports = Ember.imports = Ember.imports || this;
  var exports = Ember.exports = Ember.exports || this;
  var lookup  = Ember.lookup  = Ember.lookup  || this;
  
  // aliases needed to keep minifiers from removing the global context
  exports.Em = exports.Ember = Em = Ember;
  
  // Make sure these are set whether Ember was already defined or not
  
  Ember.isNamespace = true;
  
  Ember.toString = function() { return "Ember"; };
  
  
  /**
    @property VERSION
    @type String
    @default '1.0.0-rc.6'
    @final
  */
  Ember.VERSION = '1.0.0-rc.6';
  
  /**
    Standard environmental variables. You can define these in a global `ENV`
    variable before loading Ember to control various configuration
    settings.
  
    @property ENV
    @type Hash
  */
  Ember.ENV = Ember.ENV || ('undefined' === typeof ENV ? {} : ENV);
  
  Ember.config = Ember.config || {};
  
  // ..........................................................
  // BOOTSTRAP
  //
  
  /**
    Determines whether Ember should enhances some built-in object prototypes to
    provide a more friendly API. If enabled, a few methods will be added to
    `Function`, `String`, and `Array`. `Object.prototype` will not be enhanced,
    which is the one that causes most trouble for people.
  
    In general we recommend leaving this option set to true since it rarely
    conflicts with other code. If you need to turn it off however, you can
    define an `ENV.EXTEND_PROTOTYPES` config to disable it.
  
    @property EXTEND_PROTOTYPES
    @type Boolean
    @default true
  */
  Ember.EXTEND_PROTOTYPES = Ember.ENV.EXTEND_PROTOTYPES;
  
  if (typeof Ember.EXTEND_PROTOTYPES === 'undefined') {
    Ember.EXTEND_PROTOTYPES = true;
  }
  
  /**
    Determines whether Ember logs a full stack trace during deprecation warnings
  
    @property LOG_STACKTRACE_ON_DEPRECATION
    @type Boolean
    @default true
  */
  Ember.LOG_STACKTRACE_ON_DEPRECATION = (Ember.ENV.LOG_STACKTRACE_ON_DEPRECATION !== false);
  
  /**
    Determines whether Ember should add ECMAScript 5 shims to older browsers.
  
    @property SHIM_ES5
    @type Boolean
    @default Ember.EXTEND_PROTOTYPES
  */
  Ember.SHIM_ES5 = (Ember.ENV.SHIM_ES5 === false) ? false : Ember.EXTEND_PROTOTYPES;
  
  /**
    Determines whether Ember logs info about version of used libraries
  
    @property LOG_VERSION
    @type Boolean
    @default true
  */
  Ember.LOG_VERSION = (Ember.ENV.LOG_VERSION === false) ? false : true;
  
  /**
    Empty function. Useful for some operations.
  
    @method K
    @private
    @return {Object}
  */
  Ember.K = function() { return this; };
  
  
  // Stub out the methods defined by the ember-debug package in case it's not loaded
  
  if ('undefined' === typeof Ember.assert) { Ember.assert = Ember.K; }
  if ('undefined' === typeof Ember.warn) { Ember.warn = Ember.K; }
  if ('undefined' === typeof Ember.debug) { Ember.debug = Ember.K; }
  if ('undefined' === typeof Ember.deprecate) { Ember.deprecate = Ember.K; }
  if ('undefined' === typeof Ember.deprecateFunc) {
    Ember.deprecateFunc = function(_, func) { return func; };
  }
  
  /**
    Previously we used `Ember.$.uuid`, however `$.uuid` has been removed from
    jQuery master. We'll just bootstrap our own uuid now.
  
    @property uuid
    @type Number
    @private
  */
  Ember.uuid = 0;
  
  // ..........................................................
  // LOGGER
  //
  
  function consoleMethod(name) {
    if (imports.console && imports.console[name]) {
      // Older IE doesn't support apply, but Chrome needs it
      if (imports.console[name].apply) {
        return function() {
          imports.console[name].apply(imports.console, arguments);
        };
      } else {
        return function() {
          var message = Array.prototype.join.call(arguments, ', ');
          imports.console[name](message);
        };
      }
    }
  }
  
  function assertPolyfill(test, message) {
    if (!test) {
      try {
        // attempt to preserve the stack
        throw new Error("assertion failed: " + message);
      } catch(error) {
        setTimeout(function(){
          throw error;
        }, 0);
      }
    }
  }
  
  /**
    Inside Ember-Metal, simply uses the methods from `imports.console`.
    Override this to provide more robust logging functionality.
  
    @class Logger
    @namespace Ember
  */
  Ember.Logger = {
    log:   consoleMethod('log')   || Ember.K,
    warn:  consoleMethod('warn')  || Ember.K,
    error: consoleMethod('error') || Ember.K,
    info:  consoleMethod('info')  || Ember.K,
    debug: consoleMethod('debug') || consoleMethod('info') || Ember.K,
    assert: consoleMethod('assert') || assertPolyfill
  };
  
  
  // ..........................................................
  // ERROR HANDLING
  //
  
  /**
    A function may be assigned to `Ember.onerror` to be called when Ember
    internals encounter an error. This is useful for specialized error handling
    and reporting code.
  
    @event onerror
    @for Ember
    @param {Exception} error the error object
  */
  Ember.onerror = null;
  
  /**
    @private
  
    Wrap code block in a try/catch if `Ember.onerror` is set.
  
    @method handleErrors
    @for Ember
    @param {Function} func
    @param [context]
  */
  Ember.handleErrors = function(func, context) {
    // Unfortunately in some browsers we lose the backtrace if we rethrow the existing error,
    // so in the event that we don't have an `onerror` handler we don't wrap in a try/catch
    if ('function' === typeof Ember.onerror) {
      try {
        return func.call(context || this);
      } catch (error) {
        Ember.onerror(error);
      }
    } else {
      return func.call(context || this);
    }
  };
  
  Ember.merge = function(original, updates) {
    for (var prop in updates) {
      if (!updates.hasOwnProperty(prop)) { continue; }
      original[prop] = updates[prop];
    }
    return original;
  };
  
  /**
    Returns true if the passed value is null or undefined. This avoids errors
    from JSLint complaining about use of ==, which can be technically
    confusing.
  
    ```javascript
    Ember.isNone();              // true
    Ember.isNone(null);          // true
    Ember.isNone(undefined);     // true
    Ember.isNone('');            // false
    Ember.isNone([]);            // false
    Ember.isNone(function(){});  // false
    ```
  
    @method isNone
    @for Ember
    @param {Object} obj Value to test
    @return {Boolean}
  */
  Ember.isNone = function(obj) {
    return obj === null || obj === undefined;
  };
  Ember.none = Ember.deprecateFunc("Ember.none is deprecated. Please use Ember.isNone instead.", Ember.isNone);
  
  /**
    Verifies that a value is `null` or an empty string, empty array,
    or empty function.
  
    Constrains the rules on `Ember.isNone` by returning false for empty
    string and empty arrays.
  
    ```javascript
    Ember.isEmpty();                // true
    Ember.isEmpty(null);            // true
    Ember.isEmpty(undefined);       // true
    Ember.isEmpty('');              // true
    Ember.isEmpty([]);              // true
    Ember.isEmpty('Adam Hawkins');  // false
    Ember.isEmpty([0,1,2]);         // false
    ```
  
    @method isEmpty
    @for Ember
    @param {Object} obj Value to test
    @return {Boolean}
  */
  Ember.isEmpty = function(obj) {
    return Ember.isNone(obj) || (obj.length === 0 && typeof obj !== 'function') || (typeof obj === 'object' && Ember.get(obj, 'length') === 0);
  };
  Ember.empty = Ember.deprecateFunc("Ember.empty is deprecated. Please use Ember.isEmpty instead.", Ember.isEmpty) ;
  
  
  })();
  
  
  
  (function() {
  /*globals Node */
  /**
  @module ember-metal
  */
  
  /**
    Platform specific methods and feature detectors needed by the framework.
  
    @class platform
    @namespace Ember
    @static
  */
  var platform = Ember.platform = {};
  
  
  /**
    Identical to `Object.create()`. Implements if not available natively.
  
    @method create
    @for Ember
  */
  Ember.create = Object.create;
  
  // IE8 has Object.create but it couldn't treat property descripters.
  if (Ember.create) {
    if (Ember.create({a: 1}, {a: {value: 2}}).a !== 2) {
      Ember.create = null;
    }
  }
  
  // STUB_OBJECT_CREATE allows us to override other libraries that stub
  // Object.create different than we would prefer
  if (!Ember.create || Ember.ENV.STUB_OBJECT_CREATE) {
    var K = function() {};
  
    Ember.create = function(obj, props) {
      K.prototype = obj;
      obj = new K();
      if (props) {
        K.prototype = obj;
        for (var prop in props) {
          K.prototype[prop] = props[prop].value;
        }
        obj = new K();
      }
      K.prototype = null;
  
      return obj;
    };
  
    Ember.create.isSimulated = true;
  }
  
  var defineProperty = Object.defineProperty;
  var canRedefineProperties, canDefinePropertyOnDOM;
  
  // Catch IE8 where Object.defineProperty exists but only works on DOM elements
  if (defineProperty) {
    try {
      defineProperty({}, 'a',{get:function(){}});
    } catch (e) {
      defineProperty = null;
    }
  }
  
  if (defineProperty) {
    // Detects a bug in Android <3.2 where you cannot redefine a property using
    // Object.defineProperty once accessors have already been set.
    canRedefineProperties = (function() {
      var obj = {};
  
      defineProperty(obj, 'a', {
        configurable: true,
        enumerable: true,
        get: function() { },
        set: function() { }
      });
  
      defineProperty(obj, 'a', {
        configurable: true,
        enumerable: true,
        writable: true,
        value: true
      });
  
      return obj.a === true;
    })();
  
    // This is for Safari 5.0, which supports Object.defineProperty, but not
    // on DOM nodes.
    canDefinePropertyOnDOM = (function(){
      try {
        defineProperty(document.createElement('div'), 'definePropertyOnDOM', {});
        return true;
      } catch(e) { }
  
      return false;
    })();
  
    if (!canRedefineProperties) {
      defineProperty = null;
    } else if (!canDefinePropertyOnDOM) {
      defineProperty = function(obj, keyName, desc){
        var isNode;
  
        if (typeof Node === "object") {
          isNode = obj instanceof Node;
        } else {
          isNode = typeof obj === "object" && typeof obj.nodeType === "number" && typeof obj.nodeName === "string";
        }
  
        if (isNode) {
          // TODO: Should we have a warning here?
          return (obj[keyName] = desc.value);
        } else {
          return Object.defineProperty(obj, keyName, desc);
        }
      };
    }
  }
  
  /**
  @class platform
  @namespace Ember
  */
  
  /**
    Identical to `Object.defineProperty()`. Implements as much functionality
    as possible if not available natively.
  
    @method defineProperty
    @param {Object} obj The object to modify
    @param {String} keyName property name to modify
    @param {Object} desc descriptor hash
    @return {void}
  */
  platform.defineProperty = defineProperty;
  
  /**
    Set to true if the platform supports native getters and setters.
  
    @property hasPropertyAccessors
    @final
  */
  platform.hasPropertyAccessors = true;
  
  if (!platform.defineProperty) {
    platform.hasPropertyAccessors = false;
  
    platform.defineProperty = function(obj, keyName, desc) {
      if (!desc.get) { obj[keyName] = desc.value; }
    };
  
    platform.defineProperty.isSimulated = true;
  }
  
  if (Ember.ENV.MANDATORY_SETTER && !platform.hasPropertyAccessors) {
    Ember.ENV.MANDATORY_SETTER = false;
  }
  
  })();
  
  
  
  (function() {
  /*jshint newcap:false*/
  /**
  @module ember-metal
  */
  
  // NOTE: There is a bug in jshint that doesn't recognize `Object()` without `new`
  // as being ok unless both `newcap:false` and not `use strict`.
  // https://github.com/jshint/jshint/issues/392
  
  // Testing this is not ideal, but we want to use native functions
  // if available, but not to use versions created by libraries like Prototype
  var isNativeFunc = function(func) {
    // This should probably work in all browsers likely to have ES5 array methods
    return func && Function.prototype.toString.call(func).indexOf('[native code]') > -1;
  };
  
  // From: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/map
  var arrayMap = isNativeFunc(Array.prototype.map) ? Array.prototype.map : function(fun /*, thisp */) {
    //"use strict";
  
    if (this === void 0 || this === null) {
      throw new TypeError();
    }
  
    var t = Object(this);
    var len = t.length >>> 0;
    if (typeof fun !== "function") {
      throw new TypeError();
    }
  
    var res = new Array(len);
    var thisp = arguments[1];
    for (var i = 0; i < len; i++) {
      if (i in t) {
        res[i] = fun.call(thisp, t[i], i, t);
      }
    }
  
    return res;
  };
  
  // From: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/foreach
  var arrayForEach = isNativeFunc(Array.prototype.forEach) ? Array.prototype.forEach : function(fun /*, thisp */) {
    //"use strict";
  
    if (this === void 0 || this === null) {
      throw new TypeError();
    }
  
    var t = Object(this);
    var len = t.length >>> 0;
    if (typeof fun !== "function") {
      throw new TypeError();
    }
  
    var thisp = arguments[1];
    for (var i = 0; i < len; i++) {
      if (i in t) {
        fun.call(thisp, t[i], i, t);
      }
    }
  };
  
  var arrayIndexOf = isNativeFunc(Array.prototype.indexOf) ? Array.prototype.indexOf : function (obj, fromIndex) {
    if (fromIndex === null || fromIndex === undefined) { fromIndex = 0; }
    else if (fromIndex < 0) { fromIndex = Math.max(0, this.length + fromIndex); }
    for (var i = fromIndex, j = this.length; i < j; i++) {
      if (this[i] === obj) { return i; }
    }
    return -1;
  };
  
  Ember.ArrayPolyfills = {
    map: arrayMap,
    forEach: arrayForEach,
    indexOf: arrayIndexOf
  };
  
  if (Ember.SHIM_ES5) {
    if (!Array.prototype.map) {
      Array.prototype.map = arrayMap;
    }
  
    if (!Array.prototype.forEach) {
      Array.prototype.forEach = arrayForEach;
    }
  
    if (!Array.prototype.indexOf) {
      Array.prototype.indexOf = arrayIndexOf;
    }
  }
  
  })();
  
  
  
  (function() {
  /**
  @module ember-metal
  */
  
  
  var o_defineProperty = Ember.platform.defineProperty,
      o_create = Ember.create,
      // Used for guid generation...
      GUID_KEY = '__ember'+ (+ new Date()),
      uuid         = 0,
      numberCache  = [],
      stringCache  = {};
  
  var MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER;
  
  /**
    @private
  
    A unique key used to assign guids and other private metadata to objects.
    If you inspect an object in your browser debugger you will often see these.
    They can be safely ignored.
  
    On browsers that support it, these properties are added with enumeration
    disabled so they won't show up when you iterate over your properties.
  
    @property GUID_KEY
    @for Ember
    @type String
    @final
  */
  Ember.GUID_KEY = GUID_KEY;
  
  var GUID_DESC = {
    writable:    false,
    configurable: false,
    enumerable:  false,
    value: null
  };
  
  /**
    @private
  
    Generates a new guid, optionally saving the guid to the object that you
    pass in. You will rarely need to use this method. Instead you should
    call `Ember.guidFor(obj)`, which return an existing guid if available.
  
    @method generateGuid
    @for Ember
    @param {Object} [obj] Object the guid will be used for. If passed in, the guid will
      be saved on the object and reused whenever you pass the same object
      again.
  
      If no object is passed, just generate a new guid.
    @param {String} [prefix] Prefix to place in front of the guid. Useful when you want to
      separate the guid into separate namespaces.
    @return {String} the guid
  */
  Ember.generateGuid = function generateGuid(obj, prefix) {
    if (!prefix) prefix = 'ember';
    var ret = (prefix + (uuid++));
    if (obj) {
      GUID_DESC.value = ret;
      o_defineProperty(obj, GUID_KEY, GUID_DESC);
    }
    return ret ;
  };
  
  /**
    @private
  
    Returns a unique id for the object. If the object does not yet have a guid,
    one will be assigned to it. You can call this on any object,
    `Ember.Object`-based or not, but be aware that it will add a `_guid`
    property.
  
    You can also use this method on DOM Element objects.
  
    @method guidFor
    @for Ember
    @param {Object} obj any object, string, number, Element, or primitive
    @return {String} the unique guid for this instance.
  */
  Ember.guidFor = function guidFor(obj) {
  
    // special cases where we don't want to add a key to object
    if (obj === undefined) return "(undefined)";
    if (obj === null) return "(null)";
  
    var ret;
    var type = typeof obj;
  
    // Don't allow prototype changes to String etc. to change the guidFor
    switch(type) {
      case 'number':
        ret = numberCache[obj];
        if (!ret) ret = numberCache[obj] = 'nu'+obj;
        return ret;
  
      case 'string':
        ret = stringCache[obj];
        if (!ret) ret = stringCache[obj] = 'st'+(uuid++);
        return ret;
  
      case 'boolean':
        return obj ? '(true)' : '(false)';
  
      default:
        if (obj[GUID_KEY]) return obj[GUID_KEY];
        if (obj === Object) return '(Object)';
        if (obj === Array)  return '(Array)';
        ret = 'ember'+(uuid++);
        GUID_DESC.value = ret;
        o_defineProperty(obj, GUID_KEY, GUID_DESC);
        return ret;
    }
  };
  
  // ..........................................................
  // META
  //
  
  var META_DESC = {
    writable:    true,
    configurable: false,
    enumerable:  false,
    value: null
  };
  
  var META_KEY = Ember.GUID_KEY+'_meta';
  
  /**
    The key used to store meta information on object for property observing.
  
    @property META_KEY
    @for Ember
    @private
    @final
    @type String
  */
  Ember.META_KEY = META_KEY;
  
  // Placeholder for non-writable metas.
  var EMPTY_META = {
    descs: {},
    watching: {}
  };
  
  if (MANDATORY_SETTER) { EMPTY_META.values = {}; }
  
  Ember.EMPTY_META = EMPTY_META;
  
  if (Object.freeze) Object.freeze(EMPTY_META);
  
  var isDefinePropertySimulated = Ember.platform.defineProperty.isSimulated;
  
  function Meta(obj) {
    this.descs = {};
    this.watching = {};
    this.cache = {};
    this.source = obj;
  }
  
  if (isDefinePropertySimulated) {
    // on platforms that don't support enumerable false
    // make meta fail jQuery.isPlainObject() to hide from
    // jQuery.extend() by having a property that fails
    // hasOwnProperty check.
    Meta.prototype.__preventPlainObject__ = true;
  
    // Without non-enumerable properties, meta objects will be output in JSON
    // unless explicitly suppressed
    Meta.prototype.toJSON = function () { };
  }
  
  /**
    Retrieves the meta hash for an object. If `writable` is true ensures the
    hash is writable for this object as well.
  
    The meta object contains information about computed property descriptors as
    well as any watched properties and other information. You generally will
    not access this information directly but instead work with higher level
    methods that manipulate this hash indirectly.
  
    @method meta
    @for Ember
    @private
  
    @param {Object} obj The object to retrieve meta for
    @param {Boolean} [writable=true] Pass `false` if you do not intend to modify
      the meta hash, allowing the method to avoid making an unnecessary copy.
    @return {Object} the meta hash for an object
  */
  Ember.meta = function meta(obj, writable) {
  
    var ret = obj[META_KEY];
    if (writable===false) return ret || EMPTY_META;
  
    if (!ret) {
      if (!isDefinePropertySimulated) o_defineProperty(obj, META_KEY, META_DESC);
  
      ret = new Meta(obj);
  
      if (MANDATORY_SETTER) { ret.values = {}; }
  
      obj[META_KEY] = ret;
  
      // make sure we don't accidentally try to create constructor like desc
      ret.descs.constructor = null;
  
    } else if (ret.source !== obj) {
      if (!isDefinePropertySimulated) o_defineProperty(obj, META_KEY, META_DESC);
  
      ret = o_create(ret);
      ret.descs    = o_create(ret.descs);
      ret.watching = o_create(ret.watching);
      ret.cache    = {};
      ret.source   = obj;
  
      if (MANDATORY_SETTER) { ret.values = o_create(ret.values); }
  
      obj[META_KEY] = ret;
    }
    return ret;
  };
  
  Ember.getMeta = function getMeta(obj, property) {
    var meta = Ember.meta(obj, false);
    return meta[property];
  };
  
  Ember.setMeta = function setMeta(obj, property, value) {
    var meta = Ember.meta(obj, true);
    meta[property] = value;
    return value;
  };
  
  /**
    @deprecated
    @private
  
    In order to store defaults for a class, a prototype may need to create
    a default meta object, which will be inherited by any objects instantiated
    from the class's constructor.
  
    However, the properties of that meta object are only shallow-cloned,
    so if a property is a hash (like the event system's `listeners` hash),
    it will by default be shared across all instances of that class.
  
    This method allows extensions to deeply clone a series of nested hashes or
    other complex objects. For instance, the event system might pass
    `['listeners', 'foo:change', 'ember157']` to `prepareMetaPath`, which will
    walk down the keys provided.
  
    For each key, if the key does not exist, it is created. If it already
    exists and it was inherited from its constructor, the constructor's
    key is cloned.
  
    You can also pass false for `writable`, which will simply return
    undefined if `prepareMetaPath` discovers any part of the path that
    shared or undefined.
  
    @method metaPath
    @for Ember
    @param {Object} obj The object whose meta we are examining
    @param {Array} path An array of keys to walk down
    @param {Boolean} writable whether or not to create a new meta
      (or meta property) if one does not already exist or if it's
      shared with its constructor
  */
  Ember.metaPath = function metaPath(obj, path, writable) {
    Ember.deprecate("Ember.metaPath is deprecated and will be removed from future releases.");
    var meta = Ember.meta(obj, writable), keyName, value;
  
    for (var i=0, l=path.length; i<l; i++) {
      keyName = path[i];
      value = meta[keyName];
  
      if (!value) {
        if (!writable) { return undefined; }
        value = meta[keyName] = { __ember_source__: obj };
      } else if (value.__ember_source__ !== obj) {
        if (!writable) { return undefined; }
        value = meta[keyName] = o_create(value);
        value.__ember_source__ = obj;
      }
  
      meta = value;
    }
  
    return value;
  };
  
  /**
    @private
  
    Wraps the passed function so that `this._super` will point to the superFunc
    when the function is invoked. This is the primitive we use to implement
    calls to super.
  
    @method wrap
    @for Ember
    @param {Function} func The function to call
    @param {Function} superFunc The super function.
    @return {Function} wrapped function.
  */
  Ember.wrap = function(func, superFunc) {
    function K() {}
  
    function superWrapper() {
      var ret, sup = this._super;
      this._super = superFunc || K;
      ret = func.apply(this, arguments);
      this._super = sup;
      return ret;
    }
  
    superWrapper.wrappedFunction = func;
    superWrapper.__ember_observes__ = func.__ember_observes__;
    superWrapper.__ember_observesBefore__ = func.__ember_observesBefore__;
  
    return superWrapper;
  };
  
  /**
    Returns true if the passed object is an array or Array-like.
  
    Ember Array Protocol:
  
      - the object has an objectAt property
      - the object is a native Array
      - the object is an Object, and has a length property
  
    Unlike `Ember.typeOf` this method returns true even if the passed object is
    not formally array but appears to be array-like (i.e. implements `Ember.Array`)
  
    ```javascript
    Ember.isArray();                                            // false
    Ember.isArray([]);                                          // true
    Ember.isArray( Ember.ArrayProxy.create({ content: [] }) );  // true
    ```
  
    @method isArray
    @for Ember
    @param {Object} obj The object to test
    @return {Boolean} true if the passed object is an array or Array-like
  */
  Ember.isArray = function(obj) {
    if (!obj || obj.setInterval) { return false; }
    if (Array.isArray && Array.isArray(obj)) { return true; }
    if (Ember.Array && Ember.Array.detect(obj)) { return true; }
    if ((obj.length !== undefined) && 'object'===typeof obj) { return true; }
    return false;
  };
  
  /**
    Forces the passed object to be part of an array. If the object is already
    an array or array-like, returns the object. Otherwise adds the object to
    an array. If obj is `null` or `undefined`, returns an empty array.
  
    ```javascript
    Ember.makeArray();                           // []
    Ember.makeArray(null);                       // []
    Ember.makeArray(undefined);                  // []
    Ember.makeArray('lindsay');                  // ['lindsay']
    Ember.makeArray([1,2,42]);                   // [1,2,42]
  
    var controller = Ember.ArrayProxy.create({ content: [] });
    Ember.makeArray(controller) === controller;  // true
    ```
  
    @method makeArray
    @for Ember
    @param {Object} obj the object
    @return {Array}
  */
  Ember.makeArray = function(obj) {
    if (obj === null || obj === undefined) { return []; }
    return Ember.isArray(obj) ? obj : [obj];
  };
  
  function canInvoke(obj, methodName) {
    return !!(obj && typeof obj[methodName] === 'function');
  }
  
  /**
    Checks to see if the `methodName` exists on the `obj`.
  
    @method canInvoke
    @for Ember
    @param {Object} obj The object to check for the method
    @param {String} methodName The method name to check for
  */
  Ember.canInvoke = canInvoke;
  
  /**
    Checks to see if the `methodName` exists on the `obj`,
    and if it does, invokes it with the arguments passed.
  
    @method tryInvoke
    @for Ember
    @param {Object} obj The object to check for the method
    @param {String} methodName The method name to check for
    @param {Array} [args] The arguments to pass to the method
    @return {*} the return value of the invoked method or undefined if it cannot be invoked
  */
  Ember.tryInvoke = function(obj, methodName, args) {
    if (canInvoke(obj, methodName)) {
      return obj[methodName].apply(obj, args || []);
    }
  };
  
  // https://github.com/emberjs/ember.js/pull/1617
  var needsFinallyFix = (function() {
    var count = 0;
    try{
      try { }
      finally {
        count++;
        throw new Error('needsFinallyFixTest');
      }
    } catch (e) {}
  
    return count !== 1;
  })();
  
  /**
    Provides try { } finally { } functionality, while working
    around Safari's double finally bug.
  
    @method tryFinally
    @for Ember
    @param {Function} tryable The function to run the try callback
    @param {Function} finalizer The function to run the finally callback
    @param [binding]
    @return {*} The return value is the that of the finalizer,
    unless that valueis undefined, in which case it is the return value
    of the tryable
  */
  
  if (needsFinallyFix) {
    Ember.tryFinally = function(tryable, finalizer, binding) {
      var result, finalResult, finalError;
  
      binding = binding || this;
  
      try {
        result = tryable.call(binding);
      } finally {
        try {
          finalResult = finalizer.call(binding);
        } catch (e){
          finalError = e;
        }
      }
  
      if (finalError) { throw finalError; }
  
      return (finalResult === undefined) ? result : finalResult;
    };
  } else {
    Ember.tryFinally = function(tryable, finalizer, binding) {
      var result, finalResult;
  
      binding = binding || this;
  
      try {
        result = tryable.call(binding);
      } finally {
        finalResult = finalizer.call(binding);
      }
  
      return (finalResult === undefined) ? result : finalResult;
    };
  }
  
  /**
    Provides try { } catch finally { } functionality, while working
    around Safari's double finally bug.
  
    @method tryCatchFinally
    @for Ember
    @param {Function} tryable The function to run the try callback
    @param {Function} catchable The function to run the catchable callback
    @param {Function} finalizer The function to run the finally callback
    @param [binding]
    @return {*} The return value is the that of the finalizer,
    unless that value is undefined, in which case it is the return value
    of the tryable.
  */
  if (needsFinallyFix) {
    Ember.tryCatchFinally = function(tryable, catchable, finalizer, binding) {
      var result, finalResult, finalError;
  
      binding = binding || this;
  
      try {
        result = tryable.call(binding);
      } catch(error) {
        result = catchable.call(binding, error);
      } finally {
        try {
          finalResult = finalizer.call(binding);
        } catch (e){
          finalError = e;
        }
      }
  
      if (finalError) { throw finalError; }
  
      return (finalResult === undefined) ? result : finalResult;
    };
  } else {
    Ember.tryCatchFinally = function(tryable, catchable, finalizer, binding) {
      var result, finalResult;
  
      binding = binding || this;
  
      try {
        result = tryable.call(binding);
      } catch(error) {
        result = catchable.call(binding, error);
      } finally {
        finalResult = finalizer.call(binding);
      }
  
      return (finalResult === undefined) ? result : finalResult;
    };
  }
  
  // ........................................
  // TYPING & ARRAY MESSAGING
  //
  
  var TYPE_MAP = {};
  var t = "Boolean Number String Function Array Date RegExp Object".split(" ");
  Ember.ArrayPolyfills.forEach.call(t, function(name) {
    TYPE_MAP[ "[object " + name + "]" ] = name.toLowerCase();
  });
  
  var toString = Object.prototype.toString;
  
  /**
    Returns a consistent type for the passed item.
  
    Use this instead of the built-in `typeof` to get the type of an item.
    It will return the same result across all browsers and includes a bit
    more detail. Here is what will be returned:
  
        | Return Value  | Meaning                                              |
        |---------------|------------------------------------------------------|
        | 'string'      | String primitive                                     |
        | 'number'      | Number primitive                                     |
        | 'boolean'     | Boolean primitive                                    |
        | 'null'        | Null value                                           |
        | 'undefined'   | Undefined value                                      |
        | 'function'    | A function                                           |
        | 'array'       | An instance of Array                                 |
        | 'class'       | An Ember class (created using Ember.Object.extend()) |
        | 'instance'    | An Ember object instance                             |
        | 'error'       | An instance of the Error object                      |
        | 'object'      | A JavaScript object not inheriting from Ember.Object |
  
    Examples:
  
    ```javascript
    Ember.typeOf();                       // 'undefined'
    Ember.typeOf(null);                   // 'null'
    Ember.typeOf(undefined);              // 'undefined'
    Ember.typeOf('michael');              // 'string'
    Ember.typeOf(101);                    // 'number'
    Ember.typeOf(true);                   // 'boolean'
    Ember.typeOf(Ember.makeArray);        // 'function'
    Ember.typeOf([1,2,90]);               // 'array'
    Ember.typeOf(Ember.Object.extend());  // 'class'
    Ember.typeOf(Ember.Object.create());  // 'instance'
    Ember.typeOf(new Error('teamocil'));  // 'error'
  
    // "normal" JavaScript object
    Ember.typeOf({a: 'b'});              // 'object'
    ```
  
    @method typeOf
    @for Ember
    @param {Object} item the item to check
    @return {String} the type
  */
  Ember.typeOf = function(item) {
    var ret;
  
    ret = (item === null || item === undefined) ? String(item) : TYPE_MAP[toString.call(item)] || 'object';
  
    if (ret === 'function') {
      if (Ember.Object && Ember.Object.detect(item)) ret = 'class';
    } else if (ret === 'object') {
      if (item instanceof Error) ret = 'error';
      else if (Ember.Object && item instanceof Ember.Object) ret = 'instance';
      else ret = 'object';
    }
  
    return ret;
  };
  
  })();
  
  
  
  (function() {
  // Ember.tryCatchFinally
  
  /**
    The purpose of the Ember Instrumentation module is
    to provide efficient, general-purpose instrumentation
    for Ember.
  
    Subscribe to a listener by using `Ember.subscribe`:
  
    ```javascript
    Ember.subscribe("render", {
      before: function(name, timestamp, payload) {
  
      },
  
      after: function(name, timestamp, payload) {
  
      }
    });
    ```
  
    If you return a value from the `before` callback, that same
    value will be passed as a fourth parameter to the `after`
    callback.
  
    Instrument a block of code by using `Ember.instrument`:
  
    ```javascript
    Ember.instrument("render.handlebars", payload, function() {
      // rendering logic
    }, binding);
    ```
  
    Event names passed to `Ember.instrument` are namespaced
    by periods, from more general to more specific. Subscribers
    can listen for events by whatever level of granularity they
    are interested in.
  
    In the above example, the event is `render.handlebars`,
    and the subscriber listened for all events beginning with
    `render`. It would receive callbacks for events named
    `render`, `render.handlebars`, `render.container`, or
    even `render.handlebars.layout`.
  
    @class Instrumentation
    @namespace Ember
    @static
  */
  Ember.Instrumentation = {};
  
  var subscribers = [], cache = {};
  
  var populateListeners = function(name) {
    var listeners = [], subscriber;
  
    for (var i=0, l=subscribers.length; i<l; i++) {
      subscriber = subscribers[i];
      if (subscriber.regex.test(name)) {
        listeners.push(subscriber.object);
      }
    }
  
    cache[name] = listeners;
    return listeners;
  };
  
  var time = (function() {
    var perf = 'undefined' !== typeof window ? window.performance || {} : {};
    var fn = perf.now || perf.mozNow || perf.webkitNow || perf.msNow || perf.oNow;
    // fn.bind will be available in all the browsers that support the advanced window.performance... ;-)
    return fn ? fn.bind(perf) : function() { return +new Date(); };
  })();
  
  
  Ember.Instrumentation.instrument = function(name, payload, callback, binding) {
    var listeners = cache[name], timeName, ret;
  
    if (Ember.STRUCTURED_PROFILE) {
      timeName = name + ": " + payload.object;
      console.time(timeName);
    }
  
    if (!listeners) {
      listeners = populateListeners(name);
    }
  
    if (listeners.length === 0) {
      ret = callback.call(binding);
      if (Ember.STRUCTURED_PROFILE) { console.timeEnd(timeName); }
      return ret;
    }
  
    var beforeValues = [], listener, i, l;
  
    function tryable(){
      for (i=0, l=listeners.length; i<l; i++) {
        listener = listeners[i];
        beforeValues[i] = listener.before(name, time(), payload);
      }
  
      return callback.call(binding);
    }
  
    function catchable(e){
      payload = payload || {};
      payload.exception = e;
    }
  
    function finalizer() {
      for (i=0, l=listeners.length; i<l; i++) {
        listener = listeners[i];
        listener.after(name, time(), payload, beforeValues[i]);
      }
  
      if (Ember.STRUCTURED_PROFILE) {
        console.timeEnd(timeName);
      }
    }
  
    return Ember.tryCatchFinally(tryable, catchable, finalizer);
  };
  
  Ember.Instrumentation.subscribe = function(pattern, object) {
    var paths = pattern.split("."), path, regex = [];
  
    for (var i=0, l=paths.length; i<l; i++) {
      path = paths[i];
      if (path === "*") {
        regex.push("[^\\.]*");
      } else {
        regex.push(path);
      }
    }
  
    regex = regex.join("\\.");
    regex = regex + "(\\..*)?";
  
    var subscriber = {
      pattern: pattern,
      regex: new RegExp("^" + regex + "$"),
      object: object
    };
  
    subscribers.push(subscriber);
    cache = {};
  
    return subscriber;
  };
  
  Ember.Instrumentation.unsubscribe = function(subscriber) {
    var index;
  
    for (var i=0, l=subscribers.length; i<l; i++) {
      if (subscribers[i] === subscriber) {
        index = i;
      }
    }
  
    subscribers.splice(index, 1);
    cache = {};
  };
  
  Ember.Instrumentation.reset = function() {
    subscribers = [];
    cache = {};
  };
  
  Ember.instrument = Ember.Instrumentation.instrument;
  Ember.subscribe = Ember.Instrumentation.subscribe;
  
  })();
  
  
  
  (function() {
  var map, forEach, indexOf, concat;
  concat  = Array.prototype.concat;
  map     = Array.prototype.map     || Ember.ArrayPolyfills.map;
  forEach = Array.prototype.forEach || Ember.ArrayPolyfills.forEach;
  indexOf = Array.prototype.indexOf || Ember.ArrayPolyfills.indexOf;
  
  var utils = Ember.EnumerableUtils = {
    map: function(obj, callback, thisArg) {
      return obj.map ? obj.map.call(obj, callback, thisArg) : map.call(obj, callback, thisArg);
    },
  
    forEach: function(obj, callback, thisArg) {
      return obj.forEach ? obj.forEach.call(obj, callback, thisArg) : forEach.call(obj, callback, thisArg);
    },
  
    indexOf: function(obj, element, index) {
      return obj.indexOf ? obj.indexOf.call(obj, element, index) : indexOf.call(obj, element, index);
    },
  
    indexesOf: function(obj, elements) {
      return elements === undefined ? [] : utils.map(elements, function(item) {
        return utils.indexOf(obj, item);
      });
    },
  
    addObject: function(array, item) {
      var index = utils.indexOf(array, item);
      if (index === -1) { array.push(item); }
    },
  
    removeObject: function(array, item) {
      var index = utils.indexOf(array, item);
      if (index !== -1) { array.splice(index, 1); }
    },
  
    replace: function(array, idx, amt, objects) {
      if (array.replace) {
        return array.replace(idx, amt, objects);
      } else {
        var args = concat.apply([idx, amt], objects);
        return array.splice.apply(array, args);
      }
    },
  
    intersection: function(array1, array2) {
      var intersection = [];
  
      utils.forEach(array1, function(element) {
        if (utils.indexOf(array2, element) >= 0) {
          intersection.push(element);
        }
      });
  
      return intersection;
    }
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember-metal
  */
  
  var META_KEY = Ember.META_KEY, get;
  
  var MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER;
  
  var IS_GLOBAL_PATH = /^([A-Z$]|([0-9][A-Z$])).*[\.\*]/;
  var HAS_THIS  = /^this[\.\*]/;
  var FIRST_KEY = /^([^\.\*]+)/;
  
  // ..........................................................
  // GET AND SET
  //
  // If we are on a platform that supports accessors we can use those.
  // Otherwise simulate accessors by looking up the property directly on the
  // object.
  
  /**
    Gets the value of a property on an object. If the property is computed,
    the function will be invoked. If the property is not defined but the
    object implements the `unknownProperty` method then that will be invoked.
  
    If you plan to run on IE8 and older browsers then you should use this
    method anytime you want to retrieve a property on an object that you don't
    know for sure is private. (Properties beginning with an underscore '_'
    are considered private.)
  
    On all newer browsers, you only need to use this method to retrieve
    properties if the property might not be defined on the object and you want
    to respect the `unknownProperty` handler. Otherwise you can ignore this
    method.
  
    Note that if the object itself is `undefined`, this method will throw
    an error.
  
    @method get
    @for Ember
    @param {Object} obj The object to retrieve from.
    @param {String} keyName The property key to retrieve
    @return {Object} the property value or `null`.
  */
  get = function get(obj, keyName) {
    // Helpers that operate with 'this' within an #each
    if (keyName === '') {
      return obj;
    }
  
    if (!keyName && 'string'===typeof obj) {
      keyName = obj;
      obj = null;
    }
  
    Ember.assert("Cannot call get with "+ keyName +" key.", !!keyName);
    Ember.assert("Cannot call get with '"+ keyName +"' on an undefined object.", obj !== undefined);
  
    if (obj === null || keyName.indexOf('.') !== -1) {
      return getPath(obj, keyName);
    }
  
    var meta = obj[META_KEY], desc = meta && meta.descs[keyName], ret;
    if (desc) {
      return desc.get(obj, keyName);
    } else {
      if (MANDATORY_SETTER && meta && meta.watching[keyName] > 0) {
        ret = meta.values[keyName];
      } else {
        ret = obj[keyName];
      }
  
      if (ret === undefined &&
          'object' === typeof obj && !(keyName in obj) && 'function' === typeof obj.unknownProperty) {
        return obj.unknownProperty(keyName);
      }
  
      return ret;
    }
  };
  
  // Currently used only by Ember Data tests
  if (Ember.config.overrideAccessors) {
    Ember.get = get;
    Ember.config.overrideAccessors();
    get = Ember.get;
  }
  
  /**
    @private
  
    Normalizes a target/path pair to reflect that actual target/path that should
    be observed, etc. This takes into account passing in global property
    paths (i.e. a path beginning with a captial letter not defined on the
    target) and * separators.
  
    @method normalizeTuple
    @for Ember
    @param {Object} target The current target. May be `null`.
    @param {String} path A path on the target or a global property path.
    @return {Array} a temporary array with the normalized target/path pair.
  */
  var normalizeTuple = Ember.normalizeTuple = function(target, path) {
    var hasThis  = HAS_THIS.test(path),
        isGlobal = !hasThis && IS_GLOBAL_PATH.test(path),
        key;
  
    if (!target || isGlobal) target = Ember.lookup;
    if (hasThis) path = path.slice(5);
  
    if (target === Ember.lookup) {
      key = path.match(FIRST_KEY)[0];
      target = get(target, key);
      path   = path.slice(key.length+1);
    }
  
    // must return some kind of path to be valid else other things will break.
    if (!path || path.length===0) throw new Error('Invalid Path');
  
    return [ target, path ];
  };
  
  var getPath = Ember._getPath = function(root, path) {
    var hasThis, parts, tuple, idx, len;
  
    // If there is no root and path is a key name, return that
    // property from the global object.
    // E.g. get('Ember') -> Ember
    if (root === null && path.indexOf('.') === -1) { return get(Ember.lookup, path); }
  
    // detect complicated paths and normalize them
    hasThis  = HAS_THIS.test(path);
  
    if (!root || hasThis) {
      tuple = normalizeTuple(root, path);
      root = tuple[0];
      path = tuple[1];
      tuple.length = 0;
    }
  
    parts = path.split(".");
    len = parts.length;
    for (idx = 0; root != null && idx < len; idx++) {
      root = get(root, parts[idx], true);
      if (root && root.isDestroyed) { return undefined; }
    }
    return root;
  };
  
  Ember.getWithDefault = function(root, key, defaultValue) {
    var value = get(root, key);
  
    if (value === undefined) { return defaultValue; }
    return value;
  };
  
  
  Ember.get = get;
  Ember.getPath = Ember.deprecateFunc('getPath is deprecated since get now supports paths', Ember.get);
  
  })();
  
  
  
  (function() {
  /**
  @module ember-metal
  */
  
  var o_create = Ember.create,
      metaFor = Ember.meta,
      META_KEY = Ember.META_KEY,
      /* listener flags */
      ONCE = 1, SUSPENDED = 2;
  
  /*
    The event system uses a series of nested hashes to store listeners on an
    object. When a listener is registered, or when an event arrives, these
    hashes are consulted to determine which target and action pair to invoke.
  
    The hashes are stored in the object's meta hash, and look like this:
  
        // Object's meta hash
        {
          listeners: {       // variable name: `listenerSet`
            "foo:changed": [ // variable name: `actions`
              [target, method, flags]
            ]
          }
        }
  
  */
  
  function indexOf(array, target, method) {
    var index = -1;
    for (var i = 0, l = array.length; i < l; i++) {
      if (target === array[i][0] && method === array[i][1]) { index = i; break; }
    }
    return index;
  }
  
  function actionsFor(obj, eventName) {
    var meta = metaFor(obj, true),
        actions;
  
    if (!meta.listeners) { meta.listeners = {}; }
  
    if (!meta.hasOwnProperty('listeners')) {
      // setup inherited copy of the listeners object
      meta.listeners = o_create(meta.listeners);
    }
  
    actions = meta.listeners[eventName];
  
    // if there are actions, but the eventName doesn't exist in our listeners, then copy them from the prototype
    if (actions && !meta.listeners.hasOwnProperty(eventName)) {
      actions = meta.listeners[eventName] = meta.listeners[eventName].slice();
    } else if (!actions) {
      actions = meta.listeners[eventName] = [];
    }
  
    return actions;
  }
  
  function actionsUnion(obj, eventName, otherActions) {
    var meta = obj[META_KEY],
        actions = meta && meta.listeners && meta.listeners[eventName];
  
    if (!actions) { return; }
    for (var i = actions.length - 1; i >= 0; i--) {
      var target = actions[i][0],
          method = actions[i][1],
          flags = actions[i][2],
          actionIndex = indexOf(otherActions, target, method);
  
      if (actionIndex === -1) {
        otherActions.push([target, method, flags]);
      }
    }
  }
  
  function actionsDiff(obj, eventName, otherActions) {
    var meta = obj[META_KEY],
        actions = meta && meta.listeners && meta.listeners[eventName],
        diffActions = [];
  
    if (!actions) { return; }
    for (var i = actions.length - 1; i >= 0; i--) {
      var target = actions[i][0],
          method = actions[i][1],
          flags = actions[i][2],
          actionIndex = indexOf(otherActions, target, method);
  
      if (actionIndex !== -1) { continue; }
  
      otherActions.push([target, method, flags]);
      diffActions.push([target, method, flags]);
    }
  
    return diffActions;
  }
  
  /**
    Add an event listener
  
    @method addListener
    @for Ember
    @param obj
    @param {String} eventName
    @param {Object|Function} targetOrMethod A target object or a function
    @param {Function|String} method A function or the name of a function to be called on `target`
    @param {Boolean} once A flag whether a function should only be called once
  */
  function addListener(obj, eventName, target, method, once) {
    Ember.assert("You must pass at least an object and event name to Ember.addListener", !!obj && !!eventName);
  
    if (!method && 'function' === typeof target) {
      method = target;
      target = null;
    }
  
    var actions = actionsFor(obj, eventName),
        actionIndex = indexOf(actions, target, method),
        flags = 0;
  
    if (once) flags |= ONCE;
  
    if (actionIndex !== -1) { return; }
  
    actions.push([target, method, flags]);
  
    if ('function' === typeof obj.didAddListener) {
      obj.didAddListener(eventName, target, method);
    }
  }
  
  /**
    Remove an event listener
  
    Arguments should match those passed to `Ember.addListener`.
  
    @method removeListener
    @for Ember
    @param obj
    @param {String} eventName
    @param {Object|Function} targetOrMethod A target object or a function
    @param {Function|String} method A function or the name of a function to be called on `target`
  */
  function removeListener(obj, eventName, target, method) {
    Ember.assert("You must pass at least an object and event name to Ember.removeListener", !!obj && !!eventName);
  
    if (!method && 'function' === typeof target) {
      method = target;
      target = null;
    }
  
    function _removeListener(target, method) {
      var actions = actionsFor(obj, eventName),
          actionIndex = indexOf(actions, target, method);
  
      // action doesn't exist, give up silently
      if (actionIndex === -1) { return; }
  
      actions.splice(actionIndex, 1);
  
      if ('function' === typeof obj.didRemoveListener) {
        obj.didRemoveListener(eventName, target, method);
      }
    }
  
    if (method) {
      _removeListener(target, method);
    } else {
      var meta = obj[META_KEY],
          actions = meta && meta.listeners && meta.listeners[eventName];
  
      if (!actions) { return; }
      for (var i = actions.length - 1; i >= 0; i--) {
        _removeListener(actions[i][0], actions[i][1]);
      }
    }
  }
  
  /**
    @private
  
    Suspend listener during callback.
  
    This should only be used by the target of the event listener
    when it is taking an action that would cause the event, e.g.
    an object might suspend its property change listener while it is
    setting that property.
  
    @method suspendListener
    @for Ember
    @param obj
    @param {String} eventName
    @param {Object|Function} targetOrMethod A target object or a function
    @param {Function|String} method A function or the name of a function to be called on `target`
    @param {Function} callback
  */
  function suspendListener(obj, eventName, target, method, callback) {
    if (!method && 'function' === typeof target) {
      method = target;
      target = null;
    }
  
    var actions = actionsFor(obj, eventName),
        actionIndex = indexOf(actions, target, method),
        action;
  
    if (actionIndex !== -1) {
      action = actions[actionIndex].slice(); // copy it, otherwise we're modifying a shared object
      action[2] |= SUSPENDED; // mark the action as suspended
      actions[actionIndex] = action; // replace the shared object with our copy
    }
  
    function tryable()   { return callback.call(target); }
    function finalizer() { if (action) { action[2] &= ~SUSPENDED; } }
  
    return Ember.tryFinally(tryable, finalizer);
  }
  
  /**
    @private
  
    Suspend listener during callback.
  
    This should only be used by the target of the event listener
    when it is taking an action that would cause the event, e.g.
    an object might suspend its property change listener while it is
    setting that property.
  
    @method suspendListener
    @for Ember
    @param obj
    @param {Array} eventName Array of event names
    @param {Object|Function} targetOrMethod A target object or a function
    @param {Function|String} method A function or the name of a function to be called on `target`
    @param {Function} callback
  */
  function suspendListeners(obj, eventNames, target, method, callback) {
    if (!method && 'function' === typeof target) {
      method = target;
      target = null;
    }
  
    var suspendedActions = [],
        eventName, actions, action, i, l;
  
    for (i=0, l=eventNames.length; i<l; i++) {
      eventName = eventNames[i];
      actions = actionsFor(obj, eventName);
      var actionIndex = indexOf(actions, target, method);
  
      if (actionIndex !== -1) {
        action = actions[actionIndex].slice();
        action[2] |= SUSPENDED;
        actions[actionIndex] = action;
        suspendedActions.push(action);
      }
    }
  
    function tryable() { return callback.call(target); }
  
    function finalizer() {
      for (i = 0, l = suspendedActions.length; i < l; i++) {
        suspendedActions[i][2] &= ~SUSPENDED;
      }
    }
  
    return Ember.tryFinally(tryable, finalizer);
  }
  
  /**
    @private
  
    Return a list of currently watched events
  
    @method watchedEvents
    @for Ember
    @param obj
  */
  function watchedEvents(obj) {
    var listeners = obj[META_KEY].listeners, ret = [];
  
    if (listeners) {
      for(var eventName in listeners) {
        if (listeners[eventName]) { ret.push(eventName); }
      }
    }
    return ret;
  }
  
  /**
    @method sendEvent
    @for Ember
    @param obj
    @param {String} eventName
    @param {Array} params
    @param {Array} actions
    @return true
  */
  function sendEvent(obj, eventName, params, actions) {
    // first give object a chance to handle it
    if (obj !== Ember && 'function' === typeof obj.sendEvent) {
      obj.sendEvent(eventName, params);
    }
  
    if (!actions) {
      var meta = obj[META_KEY];
      actions = meta && meta.listeners && meta.listeners[eventName];
    }
  
    if (!actions) { return; }
  
    for (var i = actions.length - 1; i >= 0; i--) { // looping in reverse for once listeners
      var action = actions[i];
      if (!action) { continue; }
      var target = action[0], method = action[1], flags = action[2];
      if (flags & SUSPENDED) { continue; }
      if (flags & ONCE) { removeListener(obj, eventName, target, method); }
      if (!target) { target = obj; }
      if ('string' === typeof method) { method = target[method]; }
      if (params) {
        method.apply(target, params);
      } else {
        method.call(target);
      }
    }
    return true;
  }
  
  /**
    @private
    @method hasListeners
    @for Ember
    @param obj
    @param {String} eventName
  */
  function hasListeners(obj, eventName) {
    var meta = obj[META_KEY],
        actions = meta && meta.listeners && meta.listeners[eventName];
  
    return !!(actions && actions.length);
  }
  
  /**
    @private
    @method listenersFor
    @for Ember
    @param obj
    @param {String} eventName
  */
  function listenersFor(obj, eventName) {
    var ret = [];
    var meta = obj[META_KEY],
        actions = meta && meta.listeners && meta.listeners[eventName];
  
    if (!actions) { return ret; }
  
    for (var i = 0, l = actions.length; i < l; i++) {
      var target = actions[i][0],
          method = actions[i][1];
      ret.push([target, method]);
    }
  
    return ret;
  }
  
  Ember.addListener = addListener;
  Ember.removeListener = removeListener;
  Ember._suspendListener = suspendListener;
  Ember._suspendListeners = suspendListeners;
  Ember.sendEvent = sendEvent;
  Ember.hasListeners = hasListeners;
  Ember.watchedEvents = watchedEvents;
  Ember.listenersFor = listenersFor;
  Ember.listenersDiff = actionsDiff;
  Ember.listenersUnion = actionsUnion;
  
  })();
  
  
  
  (function() {
  var guidFor = Ember.guidFor,
      sendEvent = Ember.sendEvent;
  
  /*
    this.observerSet = {
      [senderGuid]: { // variable name: `keySet`
        [keyName]: listIndex
      }
    },
    this.observers = [
      {
        sender: obj,
        keyName: keyName,
        eventName: eventName,
        listeners: [
          [target, method, flags]
        ]
      },
      ...
    ]
  */
  var ObserverSet = Ember._ObserverSet = function() {
    this.clear();
  };
  
  ObserverSet.prototype.add = function(sender, keyName, eventName) {
    var observerSet = this.observerSet,
        observers = this.observers,
        senderGuid = guidFor(sender),
        keySet = observerSet[senderGuid],
        index;
  
    if (!keySet) {
      observerSet[senderGuid] = keySet = {};
    }
    index = keySet[keyName];
    if (index === undefined) {
      index = observers.push({
        sender: sender,
        keyName: keyName,
        eventName: eventName,
        listeners: []
      }) - 1;
      keySet[keyName] = index;
    }
    return observers[index].listeners;
  };
  
  ObserverSet.prototype.flush = function() {
    var observers = this.observers, i, len, observer, sender;
    this.clear();
    for (i=0, len=observers.length; i < len; ++i) {
      observer = observers[i];
      sender = observer.sender;
      if (sender.isDestroying || sender.isDestroyed) { continue; }
      sendEvent(sender, observer.eventName, [sender, observer.keyName], observer.listeners);
    }
  };
  
  ObserverSet.prototype.clear = function() {
    this.observerSet = {};
    this.observers = [];
  };
  })();
  
  
  
  (function() {
  var metaFor = Ember.meta,
      guidFor = Ember.guidFor,
      tryFinally = Ember.tryFinally,
      sendEvent = Ember.sendEvent,
      listenersUnion = Ember.listenersUnion,
      listenersDiff = Ember.listenersDiff,
      ObserverSet = Ember._ObserverSet,
      beforeObserverSet = new ObserverSet(),
      observerSet = new ObserverSet(),
      deferred = 0;
  
  // ..........................................................
  // PROPERTY CHANGES
  //
  
  /**
    This function is called just before an object property is about to change.
    It will notify any before observers and prepare caches among other things.
  
    Normally you will not need to call this method directly but if for some
    reason you can't directly watch a property you can invoke this method
    manually along with `Ember.propertyDidChange()` which you should call just
    after the property value changes.
  
    @method propertyWillChange
    @for Ember
    @param {Object} obj The object with the property that will change
    @param {String} keyName The property key (or path) that will change.
    @return {void}
  */
  var propertyWillChange = Ember.propertyWillChange = function(obj, keyName) {
    var m = metaFor(obj, false),
        watching = m.watching[keyName] > 0 || keyName === 'length',
        proto = m.proto,
        desc = m.descs[keyName];
  
    if (!watching) { return; }
    if (proto === obj) { return; }
    if (desc && desc.willChange) { desc.willChange(obj, keyName); }
    dependentKeysWillChange(obj, keyName, m);
    chainsWillChange(obj, keyName, m);
    notifyBeforeObservers(obj, keyName);
  };
  
  /**
    This function is called just after an object property has changed.
    It will notify any observers and clear caches among other things.
  
    Normally you will not need to call this method directly but if for some
    reason you can't directly watch a property you can invoke this method
    manually along with `Ember.propertyWilLChange()` which you should call just
    before the property value changes.
  
    @method propertyDidChange
    @for Ember
    @param {Object} obj The object with the property that will change
    @param {String} keyName The property key (or path) that will change.
    @return {void}
  */
  var propertyDidChange = Ember.propertyDidChange = function(obj, keyName) {
    var m = metaFor(obj, false),
        watching = m.watching[keyName] > 0 || keyName === 'length',
        proto = m.proto,
        desc = m.descs[keyName];
  
    if (proto === obj) { return; }
  
    // shouldn't this mean that we're watching this key?
    if (desc && desc.didChange) { desc.didChange(obj, keyName); }
    if (!watching && keyName !== 'length') { return; }
  
    dependentKeysDidChange(obj, keyName, m);
    chainsDidChange(obj, keyName, m);
    notifyObservers(obj, keyName);
  };
  
  var WILL_SEEN, DID_SEEN;
  
  // called whenever a property is about to change to clear the cache of any dependent keys (and notify those properties of changes, etc...)
  function dependentKeysWillChange(obj, depKey, meta) {
    if (obj.isDestroying) { return; }
  
    var seen = WILL_SEEN, top = !seen;
    if (top) { seen = WILL_SEEN = {}; }
    iterDeps(propertyWillChange, obj, depKey, seen, meta);
    if (top) { WILL_SEEN = null; }
  }
  
  // called whenever a property has just changed to update dependent keys
  function dependentKeysDidChange(obj, depKey, meta) {
    if (obj.isDestroying) { return; }
  
    var seen = DID_SEEN, top = !seen;
    if (top) { seen = DID_SEEN = {}; }
    iterDeps(propertyDidChange, obj, depKey, seen, meta);
    if (top) { DID_SEEN = null; }
  }
  
  function iterDeps(method, obj, depKey, seen, meta) {
    var guid = guidFor(obj);
    if (!seen[guid]) seen[guid] = {};
    if (seen[guid][depKey]) return;
    seen[guid][depKey] = true;
  
    var deps = meta.deps;
    deps = deps && deps[depKey];
    if (deps) {
      for(var key in deps) {
        var desc = meta.descs[key];
        if (desc && desc._suspended === obj) continue;
        method(obj, key);
      }
    }
  }
  
  var chainsWillChange = function(obj, keyName, m, arg) {
    if (!m.hasOwnProperty('chainWatchers')) { return; } // nothing to do
  
    var nodes = m.chainWatchers;
  
    nodes = nodes[keyName];
    if (!nodes) { return; }
  
    for(var i = 0, l = nodes.length; i < l; i++) {
      nodes[i].willChange(arg);
    }
  };
  
  var chainsDidChange = function(obj, keyName, m, arg) {
    if (!m.hasOwnProperty('chainWatchers')) { return; } // nothing to do
  
    var nodes = m.chainWatchers;
  
    nodes = nodes[keyName];
    if (!nodes) { return; }
  
    // looping in reverse because the chainWatchers array can be modified inside didChange
    for (var i = nodes.length - 1; i >= 0; i--) {
      nodes[i].didChange(arg);
    }
  };
  
  Ember.overrideChains = function(obj, keyName, m) {
    chainsDidChange(obj, keyName, m, true);
  };
  
  /**
    @method beginPropertyChanges
    @chainable
  */
  var beginPropertyChanges = Ember.beginPropertyChanges = function() {
    deferred++;
  };
  
  /**
    @method endPropertyChanges
  */
  var endPropertyChanges = Ember.endPropertyChanges = function() {
    deferred--;
    if (deferred<=0) {
      beforeObserverSet.clear();
      observerSet.flush();
    }
  };
  
  /**
    Make a series of property changes together in an
    exception-safe way.
  
    ```javascript
    Ember.changeProperties(function() {
      obj1.set('foo', mayBlowUpWhenSet);
      obj2.set('bar', baz);
    });
    ```
  
    @method changeProperties
    @param {Function} callback
    @param [binding]
  */
  Ember.changeProperties = function(cb, binding){
    beginPropertyChanges();
    tryFinally(cb, endPropertyChanges, binding);
  };
  
  var notifyBeforeObservers = function(obj, keyName) {
    if (obj.isDestroying) { return; }
  
    var eventName = keyName + ':before', listeners, diff;
    if (deferred) {
      listeners = beforeObserverSet.add(obj, keyName, eventName);
      diff = listenersDiff(obj, eventName, listeners);
      sendEvent(obj, eventName, [obj, keyName], diff);
    } else {
      sendEvent(obj, eventName, [obj, keyName]);
    }
  };
  
  var notifyObservers = function(obj, keyName) {
    if (obj.isDestroying) { return; }
  
    var eventName = keyName + ':change', listeners;
    if (deferred) {
      listeners = observerSet.add(obj, keyName, eventName);
      listenersUnion(obj, eventName, listeners);
    } else {
      sendEvent(obj, eventName, [obj, keyName]);
    }
  };
  })();
  
  
  
  (function() {
  // META_KEY
  // _getPath
  // propertyWillChange, propertyDidChange
  
  var META_KEY = Ember.META_KEY,
      MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER,
      IS_GLOBAL = /^([A-Z$]|([0-9][A-Z$]))/,
      getPath = Ember._getPath;
  
  /**
    Sets the value of a property on an object, respecting computed properties
    and notifying observers and other listeners of the change. If the
    property is not defined but the object implements the `unknownProperty`
    method then that will be invoked as well.
  
    If you plan to run on IE8 and older browsers then you should use this
    method anytime you want to set a property on an object that you don't
    know for sure is private. (Properties beginning with an underscore '_'
    are considered private.)
  
    On all newer browsers, you only need to use this method to set
    properties if the property might not be defined on the object and you want
    to respect the `unknownProperty` handler. Otherwise you can ignore this
    method.
  
    @method set
    @for Ember
    @param {Object} obj The object to modify.
    @param {String} keyName The property key to set
    @param {Object} value The value to set
    @return {Object} the passed value.
  */
  var set = function set(obj, keyName, value, tolerant) {
    if (typeof obj === 'string') {
      Ember.assert("Path '" + obj + "' must be global if no obj is given.", IS_GLOBAL.test(obj));
      value = keyName;
      keyName = obj;
      obj = null;
    }
  
    Ember.assert("Cannot call set with "+ keyName +" key.", !!keyName);
  
    if (!obj || keyName.indexOf('.') !== -1) {
      return setPath(obj, keyName, value, tolerant);
    }
  
    Ember.assert("You need to provide an object and key to `set`.", !!obj && keyName !== undefined);
    Ember.assert('calling set on destroyed object', !obj.isDestroyed);
  
    var meta = obj[META_KEY], desc = meta && meta.descs[keyName],
        isUnknown, currentValue;
    if (desc) {
      desc.set(obj, keyName, value);
    } else {
      isUnknown = 'object' === typeof obj && !(keyName in obj);
  
      // setUnknownProperty is called if `obj` is an object,
      // the property does not already exist, and the
      // `setUnknownProperty` method exists on the object
      if (isUnknown && 'function' === typeof obj.setUnknownProperty) {
        obj.setUnknownProperty(keyName, value);
      } else if (meta && meta.watching[keyName] > 0) {
        if (MANDATORY_SETTER) {
          currentValue = meta.values[keyName];
        } else {
          currentValue = obj[keyName];
        }
        // only trigger a change if the value has changed
        if (value !== currentValue) {
          Ember.propertyWillChange(obj, keyName);
          if (MANDATORY_SETTER) {
            if (currentValue === undefined && !(keyName in obj)) {
              Ember.defineProperty(obj, keyName, null, value); // setup mandatory setter
            } else {
              meta.values[keyName] = value;
            }
          } else {
            obj[keyName] = value;
          }
          Ember.propertyDidChange(obj, keyName);
        }
      } else {
        obj[keyName] = value;
      }
    }
    return value;
  };
  
  // Currently used only by Ember Data tests
  if (Ember.config.overrideAccessors) {
    Ember.set = set;
    Ember.config.overrideAccessors();
    set = Ember.set;
  }
  
  function setPath(root, path, value, tolerant) {
    var keyName;
  
    // get the last part of the path
    keyName = path.slice(path.lastIndexOf('.') + 1);
  
    // get the first part of the part
    path    = path.slice(0, path.length-(keyName.length+1));
  
    // unless the path is this, look up the first part to
    // get the root
    if (path !== 'this') {
      root = getPath(root, path);
    }
  
    if (!keyName || keyName.length === 0) {
      throw new Error('You passed an empty path');
    }
  
    if (!root) {
      if (tolerant) { return; }
      else { throw new Error('Object in path '+path+' could not be found or was destroyed.'); }
    }
  
    return set(root, keyName, value);
  }
  
  Ember.set = set;
  Ember.setPath = Ember.deprecateFunc('setPath is deprecated since set now supports paths', Ember.set);
  
  /**
    Error-tolerant form of `Ember.set`. Will not blow up if any part of the
    chain is `undefined`, `null`, or destroyed.
  
    This is primarily used when syncing bindings, which may try to update after
    an object has been destroyed.
  
    @method trySet
    @for Ember
    @param {Object} obj The object to modify.
    @param {String} path The property path to set
    @param {Object} value The value to set
  */
  Ember.trySet = function(root, path, value) {
    return set(root, path, value, true);
  };
  Ember.trySetPath = Ember.deprecateFunc('trySetPath has been renamed to trySet', Ember.trySet);
  
  })();
  
  
  
  (function() {
  /**
  @module ember-metal
  */
  
  /*
    JavaScript (before ES6) does not have a Map implementation. Objects,
    which are often used as dictionaries, may only have Strings as keys.
  
    Because Ember has a way to get a unique identifier for every object
    via `Ember.guidFor`, we can implement a performant Map with arbitrary
    keys. Because it is commonly used in low-level bookkeeping, Map is
    implemented as a pure JavaScript object for performance.
  
    This implementation follows the current iteration of the ES6 proposal for
    maps (http://wiki.ecmascript.org/doku.php?id=harmony:simple_maps_and_sets),
    with two exceptions. First, because we need our implementation to be pleasant
    on older browsers, we do not use the `delete` name (using `remove` instead).
    Second, as we do not have the luxury of in-VM iteration, we implement a
    forEach method for iteration.
  
    Map is mocked out to look like an Ember object, so you can do
    `Ember.Map.create()` for symmetry with other Ember classes.
  */
  var get = Ember.get,
      set = Ember.set,
      guidFor = Ember.guidFor,
      indexOf = Ember.ArrayPolyfills.indexOf;
  
  var copy = function(obj) {
    var output = {};
  
    for (var prop in obj) {
      if (obj.hasOwnProperty(prop)) { output[prop] = obj[prop]; }
    }
  
    return output;
  };
  
  var copyMap = function(original, newObject) {
    var keys = original.keys.copy(),
        values = copy(original.values);
  
    newObject.keys = keys;
    newObject.values = values;
    newObject.length = original.length;
  
    return newObject;
  };
  
  /**
    This class is used internally by Ember and Ember Data.
    Please do not use it at this time. We plan to clean it up
    and add many tests soon.
  
    @class OrderedSet
    @namespace Ember
    @constructor
    @private
  */
  var OrderedSet = Ember.OrderedSet = function() {
    this.clear();
  };
  
  /**
    @method create
    @static
    @return {Ember.OrderedSet}
  */
  OrderedSet.create = function() {
    return new OrderedSet();
  };
  
  
  OrderedSet.prototype = {
    /**
      @method clear
    */
    clear: function() {
      this.presenceSet = {};
      this.list = [];
    },
  
    /**
      @method add
      @param obj
    */
    add: function(obj) {
      var guid = guidFor(obj),
          presenceSet = this.presenceSet,
          list = this.list;
  
      if (guid in presenceSet) { return; }
  
      presenceSet[guid] = true;
      list.push(obj);
    },
  
    /**
      @method remove
      @param obj
    */
    remove: function(obj) {
      var guid = guidFor(obj),
          presenceSet = this.presenceSet,
          list = this.list;
  
      delete presenceSet[guid];
  
      var index = indexOf.call(list, obj);
      if (index > -1) {
        list.splice(index, 1);
      }
    },
  
    /**
      @method isEmpty
      @return {Boolean}
    */
    isEmpty: function() {
      return this.list.length === 0;
    },
  
    /**
      @method has
      @param obj
      @return {Boolean}
    */
    has: function(obj) {
      var guid = guidFor(obj),
          presenceSet = this.presenceSet;
  
      return guid in presenceSet;
    },
  
    /**
      @method forEach
      @param {Function} fn
      @param self
    */
    forEach: function(fn, self) {
      // allow mutation during iteration
      var list = this.toArray();
  
      for (var i = 0, j = list.length; i < j; i++) {
        fn.call(self, list[i]);
      }
    },
  
    /**
      @method toArray
      @return {Array}
    */
    toArray: function() {
      return this.list.slice();
    },
  
    /**
      @method copy
      @return {Ember.OrderedSet}
    */
    copy: function() {
      var set = new OrderedSet();
  
      set.presenceSet = copy(this.presenceSet);
      set.list = this.toArray();
  
      return set;
    }
  };
  
  /**
    A Map stores values indexed by keys. Unlike JavaScript's
    default Objects, the keys of a Map can be any JavaScript
    object.
  
    Internally, a Map has two data structures:
  
    1. `keys`: an OrderedSet of all of the existing keys
    2. `values`: a JavaScript Object indexed by the `Ember.guidFor(key)`
  
    When a key/value pair is added for the first time, we
    add the key to the `keys` OrderedSet, and create or
    replace an entry in `values`. When an entry is deleted,
    we delete its entry in `keys` and `values`.
  
    @class Map
    @namespace Ember
    @private
    @constructor
  */
  var Map = Ember.Map = function() {
    this.keys = Ember.OrderedSet.create();
    this.values = {};
  };
  
  /**
    @method create
    @static
  */
  Map.create = function() {
    return new Map();
  };
  
  Map.prototype = {
    /**
      This property will change as the number of objects in the map changes.
  
      @property length
      @type number
      @default 0
    */
    length: 0,
  
  
    /**
      Retrieve the value associated with a given key.
  
      @method get
      @param {*} key
      @return {*} the value associated with the key, or `undefined`
    */
    get: function(key) {
      var values = this.values,
          guid = guidFor(key);
  
      return values[guid];
    },
  
    /**
      Adds a value to the map. If a value for the given key has already been
      provided, the new value will replace the old value.
  
      @method set
      @param {*} key
      @param {*} value
    */
    set: function(key, value) {
      var keys = this.keys,
          values = this.values,
          guid = guidFor(key);
  
      keys.add(key);
      values[guid] = value;
      set(this, 'length', keys.list.length);
    },
  
    /**
      Removes a value from the map for an associated key.
  
      @method remove
      @param {*} key
      @return {Boolean} true if an item was removed, false otherwise
    */
    remove: function(key) {
      // don't use ES6 "delete" because it will be annoying
      // to use in browsers that are not ES6 friendly;
      var keys = this.keys,
          values = this.values,
          guid = guidFor(key);
  
      if (values.hasOwnProperty(guid)) {
        keys.remove(key);
        delete values[guid];
        set(this, 'length', keys.list.length);
        return true;
      } else {
        return false;
      }
    },
  
    /**
      Check whether a key is present.
  
      @method has
      @param {*} key
      @return {Boolean} true if the item was present, false otherwise
    */
    has: function(key) {
      var values = this.values,
          guid = guidFor(key);
  
      return values.hasOwnProperty(guid);
    },
  
    /**
      Iterate over all the keys and values. Calls the function once
      for each key, passing in the key and value, in that order.
  
      The keys are guaranteed to be iterated over in insertion order.
  
      @method forEach
      @param {Function} callback
      @param {*} self if passed, the `this` value inside the
        callback. By default, `this` is the map.
    */
    forEach: function(callback, self) {
      var keys = this.keys,
          values = this.values;
  
      keys.forEach(function(key) {
        var guid = guidFor(key);
        callback.call(self, key, values[guid]);
      });
    },
  
    /**
      @method copy
      @return {Ember.Map}
    */
    copy: function() {
      return copyMap(this, new Map());
    }
  };
  
  /**
    @class MapWithDefault
    @namespace Ember
    @extends Ember.Map
    @private
    @constructor
    @param [options]
      @param {*} [options.defaultValue]
  */
  var MapWithDefault = Ember.MapWithDefault = function(options) {
    Map.call(this);
    this.defaultValue = options.defaultValue;
  };
  
  /**
    @method create
    @static
    @param [options]
      @param {*} [options.defaultValue]
    @return {Ember.MapWithDefault|Ember.Map} If options are passed, returns
      `Ember.MapWithDefault` otherwise returns `Ember.Map`
  */
  MapWithDefault.create = function(options) {
    if (options) {
      return new MapWithDefault(options);
    } else {
      return new Map();
    }
  };
  
  MapWithDefault.prototype = Ember.create(Map.prototype);
  
  /**
    Retrieve the value associated with a given key.
  
    @method get
    @param {*} key
    @return {*} the value associated with the key, or the default value
  */
  MapWithDefault.prototype.get = function(key) {
    var hasValue = this.has(key);
  
    if (hasValue) {
      return Map.prototype.get.call(this, key);
    } else {
      var defaultValue = this.defaultValue(key);
      this.set(key, defaultValue);
      return defaultValue;
    }
  };
  
  /**
    @method copy
    @return {Ember.MapWithDefault}
  */
  MapWithDefault.prototype.copy = function() {
    return copyMap(this, new MapWithDefault({
      defaultValue: this.defaultValue
    }));
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember-metal
  */
  
  var META_KEY = Ember.META_KEY,
      metaFor = Ember.meta,
      objectDefineProperty = Ember.platform.defineProperty;
  
  var MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER;
  
  // ..........................................................
  // DESCRIPTOR
  //
  
  /**
    Objects of this type can implement an interface to respond to requests to
    get and set. The default implementation handles simple properties.
  
    You generally won't need to create or subclass this directly.
  
    @class Descriptor
    @namespace Ember
    @private
    @constructor
  */
  Ember.Descriptor = function() {};
  
  // ..........................................................
  // DEFINING PROPERTIES API
  //
  
  var MANDATORY_SETTER_FUNCTION = Ember.MANDATORY_SETTER_FUNCTION = function(value) {
    Ember.assert("You must use Ember.set() to access this property (of " + this + ")", false);
  };
  
  var DEFAULT_GETTER_FUNCTION = Ember.DEFAULT_GETTER_FUNCTION = function(name) {
    return function() {
      var meta = this[META_KEY];
      return meta && meta.values[name];
    };
  };
  
  /**
    @private
  
    NOTE: This is a low-level method used by other parts of the API. You almost
    never want to call this method directly. Instead you should use
    `Ember.mixin()` to define new properties.
  
    Defines a property on an object. This method works much like the ES5
    `Object.defineProperty()` method except that it can also accept computed
    properties and other special descriptors.
  
    Normally this method takes only three parameters. However if you pass an
    instance of `Ember.Descriptor` as the third param then you can pass an
    optional value as the fourth parameter. This is often more efficient than
    creating new descriptor hashes for each property.
  
    ## Examples
  
    ```javascript
    // ES5 compatible mode
    Ember.defineProperty(contact, 'firstName', {
      writable: true,
      configurable: false,
      enumerable: true,
      value: 'Charles'
    });
  
    // define a simple property
    Ember.defineProperty(contact, 'lastName', undefined, 'Jolley');
  
    // define a computed property
    Ember.defineProperty(contact, 'fullName', Ember.computed(function() {
      return this.firstName+' '+this.lastName;
    }).property('firstName', 'lastName'));
    ```
  
    @method defineProperty
    @for Ember
    @param {Object} obj the object to define this property on. This may be a prototype.
    @param {String} keyName the name of the property
    @param {Ember.Descriptor} [desc] an instance of `Ember.Descriptor` (typically a
      computed property) or an ES5 descriptor.
      You must provide this or `data` but not both.
    @param {*} [data] something other than a descriptor, that will
      become the explicit value of this property.
  */
  Ember.defineProperty = function(obj, keyName, desc, data, meta) {
    var descs, existingDesc, watching, value;
  
    if (!meta) meta = metaFor(obj);
    descs = meta.descs;
    existingDesc = meta.descs[keyName];
    watching = meta.watching[keyName] > 0;
  
    if (existingDesc instanceof Ember.Descriptor) {
      existingDesc.teardown(obj, keyName);
    }
  
    if (desc instanceof Ember.Descriptor) {
      value = desc;
  
      descs[keyName] = desc;
      if (MANDATORY_SETTER && watching) {
        objectDefineProperty(obj, keyName, {
          configurable: true,
          enumerable: true,
          writable: true,
          value: undefined // make enumerable
        });
      } else {
        obj[keyName] = undefined; // make enumerable
      }
      desc.setup(obj, keyName);
    } else {
      descs[keyName] = undefined; // shadow descriptor in proto
      if (desc == null) {
        value = data;
  
        if (MANDATORY_SETTER && watching) {
          meta.values[keyName] = data;
          objectDefineProperty(obj, keyName, {
            configurable: true,
            enumerable: true,
            set: MANDATORY_SETTER_FUNCTION,
            get: DEFAULT_GETTER_FUNCTION(keyName)
          });
        } else {
          obj[keyName] = data;
        }
      } else {
        value = desc;
  
        // compatibility with ES5
        objectDefineProperty(obj, keyName, desc);
      }
    }
  
    // if key is being watched, override chains that
    // were initialized with the prototype
    if (watching) { Ember.overrideChains(obj, keyName, meta); }
  
    // The `value` passed to the `didDefineProperty` hook is
    // either the descriptor or data, whichever was passed.
    if (obj.didDefineProperty) { obj.didDefineProperty(obj, keyName, value); }
  
    return this;
  };
  
  
  })();
  
  
  
  (function() {
  var changeProperties = Ember.changeProperties,
      set = Ember.set;
  
  /**
    Set a list of properties on an object. These properties are set inside
    a single `beginPropertyChanges` and `endPropertyChanges` batch, so
    observers will be buffered.
  
    @method setProperties
    @param self
    @param {Object} hash
    @return self
  */
  Ember.setProperties = function(self, hash) {
    changeProperties(function(){
      for(var prop in hash) {
        if (hash.hasOwnProperty(prop)) { set(self, prop, hash[prop]); }
      }
    });
    return self;
  };
  })();
  
  
  
  (function() {
  var metaFor = Ember.meta, // utils.js
      typeOf = Ember.typeOf, // utils.js
      MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER,
      o_defineProperty = Ember.platform.defineProperty;
  
  Ember.watchKey = function(obj, keyName) {
    // can't watch length on Array - it is special...
    if (keyName === 'length' && typeOf(obj) === 'array') { return; }
  
    var m = metaFor(obj), watching = m.watching, desc;
  
    // activate watching first time
    if (!watching[keyName]) {
      watching[keyName] = 1;
      desc = m.descs[keyName];
      if (desc && desc.willWatch) { desc.willWatch(obj, keyName); }
  
      if ('function' === typeof obj.willWatchProperty) {
        obj.willWatchProperty(keyName);
      }
  
      if (MANDATORY_SETTER && keyName in obj) {
        m.values[keyName] = obj[keyName];
        o_defineProperty(obj, keyName, {
          configurable: true,
          enumerable: true,
          set: Ember.MANDATORY_SETTER_FUNCTION,
          get: Ember.DEFAULT_GETTER_FUNCTION(keyName)
        });
      }
    } else {
      watching[keyName] = (watching[keyName] || 0) + 1;
    }
  };
  
  
  Ember.unwatchKey = function(obj, keyName) {
    var m = metaFor(obj), watching = m.watching, desc;
  
    if (watching[keyName] === 1) {
      watching[keyName] = 0;
      desc = m.descs[keyName];
  
      if (desc && desc.didUnwatch) { desc.didUnwatch(obj, keyName); }
  
      if ('function' === typeof obj.didUnwatchProperty) {
        obj.didUnwatchProperty(keyName);
      }
  
      if (MANDATORY_SETTER && keyName in obj) {
        o_defineProperty(obj, keyName, {
          configurable: true,
          enumerable: true,
          writable: true,
          value: m.values[keyName]
        });
        delete m.values[keyName];
      }
    } else if (watching[keyName] > 1) {
      watching[keyName]--;
    }
  };
  })();
  
  
  
  (function() {
  var metaFor = Ember.meta, // utils.js
      get = Ember.get, // property_get.js
      normalizeTuple = Ember.normalizeTuple, // property_get.js
      forEach = Ember.ArrayPolyfills.forEach, // array.js
      warn = Ember.warn,
      watchKey = Ember.watchKey,
      unwatchKey = Ember.unwatchKey,
      propertyWillChange = Ember.propertyWillChange,
      propertyDidChange = Ember.propertyDidChange,
      FIRST_KEY = /^([^\.\*]+)/;
  
  function firstKey(path) {
    return path.match(FIRST_KEY)[0];
  }
  
  var pendingQueue = [];
  
  // attempts to add the pendingQueue chains again. If some of them end up
  // back in the queue and reschedule is true, schedules a timeout to try
  // again.
  Ember.flushPendingChains = function() {
    if (pendingQueue.length === 0) { return; } // nothing to do
  
    var queue = pendingQueue;
    pendingQueue = [];
  
    forEach.call(queue, function(q) { q[0].add(q[1]); });
  
    warn('Watching an undefined global, Ember expects watched globals to be setup by the time the run loop is flushed, check for typos', pendingQueue.length === 0);
  };
  
  
  function addChainWatcher(obj, keyName, node) {
    if (!obj || ('object' !== typeof obj)) { return; } // nothing to do
  
    var m = metaFor(obj), nodes = m.chainWatchers;
  
    if (!m.hasOwnProperty('chainWatchers')) {
      nodes = m.chainWatchers = {};
    }
  
    if (!nodes[keyName]) { nodes[keyName] = []; }
    nodes[keyName].push(node);
    watchKey(obj, keyName);
  }
  
  var removeChainWatcher = Ember.removeChainWatcher = function(obj, keyName, node) {
    if (!obj || 'object' !== typeof obj) { return; } // nothing to do
  
    var m = metaFor(obj, false);
    if (!m.hasOwnProperty('chainWatchers')) { return; } // nothing to do
  
    var nodes = m.chainWatchers;
  
    if (nodes[keyName]) {
      nodes = nodes[keyName];
      for (var i = 0, l = nodes.length; i < l; i++) {
        if (nodes[i] === node) { nodes.splice(i, 1); }
      }
    }
    unwatchKey(obj, keyName);
  };
  
  function isProto(pvalue) {
    return metaFor(pvalue, false).proto === pvalue;
  }
  
  // A ChainNode watches a single key on an object. If you provide a starting
  // value for the key then the node won't actually watch it. For a root node
  // pass null for parent and key and object for value.
  var ChainNode = Ember._ChainNode = function(parent, key, value) {
    this._parent = parent;
    this._key    = key;
  
    // _watching is true when calling get(this._parent, this._key) will
    // return the value of this node.
    //
    // It is false for the root of a chain (because we have no parent)
    // and for global paths (because the parent node is the object with
    // the observer on it)
    this._watching = value===undefined;
  
    this._value  = value;
    this._paths = {};
    if (this._watching) {
      this._object = parent.value();
      if (this._object) { addChainWatcher(this._object, this._key, this); }
    }
  
    // Special-case: the EachProxy relies on immediate evaluation to
    // establish its observers.
    //
    // TODO: Replace this with an efficient callback that the EachProxy
    // can implement.
    if (this._parent && this._parent._key === '@each') {
      this.value();
    }
  };
  
  var ChainNodePrototype = ChainNode.prototype;
  
  ChainNodePrototype.value = function() {
    if (this._value === undefined && this._watching) {
      var obj = this._parent.value();
      this._value = (obj && !isProto(obj)) ? get(obj, this._key) : undefined;
    }
    return this._value;
  };
  
  ChainNodePrototype.destroy = function() {
    if (this._watching) {
      var obj = this._object;
      if (obj) { removeChainWatcher(obj, this._key, this); }
      this._watching = false; // so future calls do nothing
    }
  };
  
  // copies a top level object only
  ChainNodePrototype.copy = function(obj) {
    var ret = new ChainNode(null, null, obj),
        paths = this._paths, path;
    for (path in paths) {
      if (paths[path] <= 0) { continue; } // this check will also catch non-number vals.
      ret.add(path);
    }
    return ret;
  };
  
  // called on the root node of a chain to setup watchers on the specified
  // path.
  ChainNodePrototype.add = function(path) {
    var obj, tuple, key, src, paths;
  
    paths = this._paths;
    paths[path] = (paths[path] || 0) + 1;
  
    obj = this.value();
    tuple = normalizeTuple(obj, path);
  
    // the path was a local path
    if (tuple[0] && tuple[0] === obj) {
      path = tuple[1];
      key  = firstKey(path);
      path = path.slice(key.length+1);
  
    // global path, but object does not exist yet.
    // put into a queue and try to connect later.
    } else if (!tuple[0]) {
      pendingQueue.push([this, path]);
      tuple.length = 0;
      return;
  
    // global path, and object already exists
    } else {
      src  = tuple[0];
      key  = path.slice(0, 0-(tuple[1].length+1));
      path = tuple[1];
    }
  
    tuple.length = 0;
    this.chain(key, path, src);
  };
  
  // called on the root node of a chain to teardown watcher on the specified
  // path
  ChainNodePrototype.remove = function(path) {
    var obj, tuple, key, src, paths;
  
    paths = this._paths;
    if (paths[path] > 0) { paths[path]--; }
  
    obj = this.value();
    tuple = normalizeTuple(obj, path);
    if (tuple[0] === obj) {
      path = tuple[1];
      key  = firstKey(path);
      path = path.slice(key.length+1);
    } else {
      src  = tuple[0];
      key  = path.slice(0, 0-(tuple[1].length+1));
      path = tuple[1];
    }
  
    tuple.length = 0;
    this.unchain(key, path);
  };
  
  ChainNodePrototype.count = 0;
  
  ChainNodePrototype.chain = function(key, path, src) {
    var chains = this._chains, node;
    if (!chains) { chains = this._chains = {}; }
  
    node = chains[key];
    if (!node) { node = chains[key] = new ChainNode(this, key, src); }
    node.count++; // count chains...
  
    // chain rest of path if there is one
    if (path && path.length>0) {
      key = firstKey(path);
      path = path.slice(key.length+1);
      node.chain(key, path); // NOTE: no src means it will observe changes...
    }
  };
  
  ChainNodePrototype.unchain = function(key, path) {
    var chains = this._chains, node = chains[key];
  
    // unchain rest of path first...
    if (path && path.length>1) {
      key  = firstKey(path);
      path = path.slice(key.length+1);
      node.unchain(key, path);
    }
  
    // delete node if needed.
    node.count--;
    if (node.count<=0) {
      delete chains[node._key];
      node.destroy();
    }
  
  };
  
  ChainNodePrototype.willChange = function() {
    var chains = this._chains;
    if (chains) {
      for(var key in chains) {
        if (!chains.hasOwnProperty(key)) { continue; }
        chains[key].willChange();
      }
    }
  
    if (this._parent) { this._parent.chainWillChange(this, this._key, 1); }
  };
  
  ChainNodePrototype.chainWillChange = function(chain, path, depth) {
    if (this._key) { path = this._key + '.' + path; }
  
    if (this._parent) {
      this._parent.chainWillChange(this, path, depth+1);
    } else {
      if (depth > 1) { propertyWillChange(this.value(), path); }
      path = 'this.' + path;
      if (this._paths[path] > 0) { propertyWillChange(this.value(), path); }
    }
  };
  
  ChainNodePrototype.chainDidChange = function(chain, path, depth) {
    if (this._key) { path = this._key + '.' + path; }
    if (this._parent) {
      this._parent.chainDidChange(this, path, depth+1);
    } else {
      if (depth > 1) { propertyDidChange(this.value(), path); }
      path = 'this.' + path;
      if (this._paths[path] > 0) { propertyDidChange(this.value(), path); }
    }
  };
  
  ChainNodePrototype.didChange = function(suppressEvent) {
    // invalidate my own value first.
    if (this._watching) {
      var obj = this._parent.value();
      if (obj !== this._object) {
        removeChainWatcher(this._object, this._key, this);
        this._object = obj;
        addChainWatcher(obj, this._key, this);
      }
      this._value  = undefined;
  
      // Special-case: the EachProxy relies on immediate evaluation to
      // establish its observers.
      if (this._parent && this._parent._key === '@each')
        this.value();
    }
  
    // then notify chains...
    var chains = this._chains;
    if (chains) {
      for(var key in chains) {
        if (!chains.hasOwnProperty(key)) { continue; }
        chains[key].didChange(suppressEvent);
      }
    }
  
    if (suppressEvent) { return; }
  
    // and finally tell parent about my path changing...
    if (this._parent) { this._parent.chainDidChange(this, this._key, 1); }
  };
  
  Ember.finishChains = function(obj) {
    var m = metaFor(obj, false), chains = m.chains;
    if (chains) {
      if (chains.value() !== obj) {
        m.chains = chains = chains.copy(obj);
      }
      chains.didChange(true);
    }
  };
  })();
  
  
  
  (function() {
  var metaFor = Ember.meta, // utils.js
      typeOf = Ember.typeOf, // utils.js
      ChainNode = Ember._ChainNode; // chains.js
  
  // get the chains for the current object. If the current object has
  // chains inherited from the proto they will be cloned and reconfigured for
  // the current object.
  function chainsFor(obj) {
    var m = metaFor(obj), ret = m.chains;
    if (!ret) {
      ret = m.chains = new ChainNode(null, null, obj);
    } else if (ret.value() !== obj) {
      ret = m.chains = ret.copy(obj);
    }
    return ret;
  }
  
  Ember.watchPath = function(obj, keyPath) {
    // can't watch length on Array - it is special...
    if (keyPath === 'length' && typeOf(obj) === 'array') { return; }
  
    var m = metaFor(obj), watching = m.watching;
  
    if (!watching[keyPath]) { // activate watching first time
      watching[keyPath] = 1;
      chainsFor(obj).add(keyPath);
    } else {
      watching[keyPath] = (watching[keyPath] || 0) + 1;
    }
  };
  
  Ember.unwatchPath = function(obj, keyPath) {
    var m = metaFor(obj), watching = m.watching;
  
    if (watching[keyPath] === 1) {
      watching[keyPath] = 0;
      chainsFor(obj).remove(keyPath);
    } else if (watching[keyPath] > 1) {
      watching[keyPath]--;
    }
  };
  })();
  
  
  
  (function() {
  /**
  @module ember-metal
  */
  
  var metaFor = Ember.meta, // utils.js
      GUID_KEY = Ember.GUID_KEY, // utils.js
      META_KEY = Ember.META_KEY, // utils.js
      removeChainWatcher = Ember.removeChainWatcher,
      watchKey = Ember.watchKey, // watch_key.js
      unwatchKey = Ember.unwatchKey,
      watchPath = Ember.watchPath, // watch_path.js
      unwatchPath = Ember.unwatchPath,
      typeOf = Ember.typeOf, // utils.js
      generateGuid = Ember.generateGuid,
      IS_PATH = /[\.\*]/;
  
  // returns true if the passed path is just a keyName
  function isKeyName(path) {
    return path==='*' || !IS_PATH.test(path);
  }
  
  /**
    @private
  
    Starts watching a property on an object. Whenever the property changes,
    invokes `Ember.propertyWillChange` and `Ember.propertyDidChange`. This is the
    primitive used by observers and dependent keys; usually you will never call
    this method directly but instead use higher level methods like
    `Ember.addObserver()`
  
    @method watch
    @for Ember
    @param obj
    @param {String} keyName
  */
  Ember.watch = function(obj, keyPath) {
    // can't watch length on Array - it is special...
    if (keyPath === 'length' && typeOf(obj) === 'array') { return; }
  
    if (isKeyName(keyPath)) {
      watchKey(obj, keyPath);
    } else {
      watchPath(obj, keyPath);
    }
  };
  
  Ember.isWatching = function isWatching(obj, key) {
    var meta = obj[META_KEY];
    return (meta && meta.watching[key]) > 0;
  };
  
  Ember.watch.flushPending = Ember.flushPendingChains;
  
  Ember.unwatch = function(obj, keyPath) {
    // can't watch length on Array - it is special...
    if (keyPath === 'length' && typeOf(obj) === 'array') { return; }
  
    if (isKeyName(keyPath)) {
      unwatchKey(obj, keyPath);
    } else {
      unwatchPath(obj, keyPath);
    }
  };
  
  /**
    @private
  
    Call on an object when you first beget it from another object. This will
    setup any chained watchers on the object instance as needed. This method is
    safe to call multiple times.
  
    @method rewatch
    @for Ember
    @param obj
  */
  Ember.rewatch = function(obj) {
    var m = metaFor(obj, false), chains = m.chains;
  
    // make sure the object has its own guid.
    if (GUID_KEY in obj && !obj.hasOwnProperty(GUID_KEY)) {
      generateGuid(obj, 'ember');
    }
  
    // make sure any chained watchers update.
    if (chains && chains.value() !== obj) {
      m.chains = chains.copy(obj);
    }
  };
  
  var NODE_STACK = [];
  
  /**
    Tears down the meta on an object so that it can be garbage collected.
    Multiple calls will have no effect.
  
    @method destroy
    @for Ember
    @param {Object} obj  the object to destroy
    @return {void}
  */
  Ember.destroy = function (obj) {
    var meta = obj[META_KEY], node, nodes, key, nodeObject;
    if (meta) {
      obj[META_KEY] = null;
      // remove chainWatchers to remove circular references that would prevent GC
      node = meta.chains;
      if (node) {
        NODE_STACK.push(node);
        // process tree
        while (NODE_STACK.length > 0) {
          node = NODE_STACK.pop();
          // push children
          nodes = node._chains;
          if (nodes) {
            for (key in nodes) {
              if (nodes.hasOwnProperty(key)) {
                NODE_STACK.push(nodes[key]);
              }
            }
          }
          // remove chainWatcher in node object
          if (node._watching) {
            nodeObject = node._object;
            if (nodeObject) {
              removeChainWatcher(nodeObject, node._key, node);
            }
          }
        }
      }
    }
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember-metal
  */
  
  Ember.warn("The CP_DEFAULT_CACHEABLE flag has been removed and computed properties are always cached by default. Use `volatile` if you don't want caching.", Ember.ENV.CP_DEFAULT_CACHEABLE !== false);
  
  
  var get = Ember.get,
      set = Ember.set,
      metaFor = Ember.meta,
      a_slice = [].slice,
      o_create = Ember.create,
      META_KEY = Ember.META_KEY,
      watch = Ember.watch,
      unwatch = Ember.unwatch;
  
  // ..........................................................
  // DEPENDENT KEYS
  //
  
  // data structure:
  //  meta.deps = {
  //   'depKey': {
  //     'keyName': count,
  //   }
  //  }
  
  /*
    This function returns a map of unique dependencies for a
    given object and key.
  */
  function keysForDep(depsMeta, depKey) {
    var keys = depsMeta[depKey];
    if (!keys) {
      // if there are no dependencies yet for a the given key
      // create a new empty list of dependencies for the key
      keys = depsMeta[depKey] = {};
    } else if (!depsMeta.hasOwnProperty(depKey)) {
      // otherwise if the dependency list is inherited from
      // a superclass, clone the hash
      keys = depsMeta[depKey] = o_create(keys);
    }
    return keys;
  }
  
  function metaForDeps(meta) {
    return keysForDep(meta, 'deps');
  }
  
  function addDependentKeys(desc, obj, keyName, meta) {
    // the descriptor has a list of dependent keys, so
    // add all of its dependent keys.
    var depKeys = desc._dependentKeys, depsMeta, idx, len, depKey, keys;
    if (!depKeys) return;
  
    depsMeta = metaForDeps(meta);
  
    for(idx = 0, len = depKeys.length; idx < len; idx++) {
      depKey = depKeys[idx];
      // Lookup keys meta for depKey
      keys = keysForDep(depsMeta, depKey);
      // Increment the number of times depKey depends on keyName.
      keys[keyName] = (keys[keyName] || 0) + 1;
      // Watch the depKey
      watch(obj, depKey);
    }
  }
  
  function removeDependentKeys(desc, obj, keyName, meta) {
    // the descriptor has a list of dependent keys, so
    // add all of its dependent keys.
    var depKeys = desc._dependentKeys, depsMeta, idx, len, depKey, keys;
    if (!depKeys) return;
  
    depsMeta = metaForDeps(meta);
  
    for(idx = 0, len = depKeys.length; idx < len; idx++) {
      depKey = depKeys[idx];
      // Lookup keys meta for depKey
      keys = keysForDep(depsMeta, depKey);
      // Increment the number of times depKey depends on keyName.
      keys[keyName] = (keys[keyName] || 0) - 1;
      // Watch the depKey
      unwatch(obj, depKey);
    }
  }
  
  // ..........................................................
  // COMPUTED PROPERTY
  //
  
  /**
    @class ComputedProperty
    @namespace Ember
    @extends Ember.Descriptor
    @constructor
  */
  function ComputedProperty(func, opts) {
    this.func = func;
  
    this._cacheable = (opts && opts.cacheable !== undefined) ? opts.cacheable : true;
    this._dependentKeys = opts && opts.dependentKeys;
    this._readOnly = opts && (opts.readOnly !== undefined || !!opts.readOnly);
  }
  
  Ember.ComputedProperty = ComputedProperty;
  ComputedProperty.prototype = new Ember.Descriptor();
  
  var ComputedPropertyPrototype = ComputedProperty.prototype;
  
  /*
    Properties are cacheable by default. Computed property will automatically
    cache the return value of your function until one of the dependent keys changes.
  
    Call `volatile()` to set it into non-cached mode. When in this mode
    the computed property will not automatically cache the return value.
  
    However, if a property is properly observable, there is no reason to disable
    caching.
  
    @method cacheable
    @param {Boolean} aFlag optional set to `false` to disable caching
    @return {Ember.ComputedProperty} this
    @chainable
  */
  ComputedPropertyPrototype.cacheable = function(aFlag) {
    this._cacheable = aFlag !== false;
    return this;
  };
  
  /**
    Call on a computed property to set it into non-cached mode. When in this
    mode the computed property will not automatically cache the return value.
  
    ```javascript
    MyApp.outsideService = Ember.Object.create({
      value: function() {
        return OutsideService.getValue();
      }.property().volatile()
    });
    ```
  
    @method volatile
    @return {Ember.ComputedProperty} this
    @chainable
  */
  ComputedPropertyPrototype.volatile = function() {
    return this.cacheable(false);
  };
  
  /**
    Call on a computed property to set it into read-only mode. When in this
    mode the computed property will throw an error when set.
  
    ```javascript
    MyApp.person = Ember.Object.create({
      guid: function() {
        return 'guid-guid-guid';
      }.property().readOnly()
    });
  
    MyApp.person.set('guid', 'new-guid'); // will throw an exception
    ```
  
    @method readOnly
    @return {Ember.ComputedProperty} this
    @chainable
  */
  ComputedPropertyPrototype.readOnly = function(readOnly) {
    this._readOnly = readOnly === undefined || !!readOnly;
    return this;
  };
  
  /**
    Sets the dependent keys on this computed property. Pass any number of
    arguments containing key paths that this computed property depends on.
  
    ```javascript
    MyApp.president = Ember.Object.create({
      fullName: Ember.computed(function() {
        return this.get('firstName') + ' ' + this.get('lastName');
  
        // Tell Ember that this computed property depends on firstName
        // and lastName
      }).property('firstName', 'lastName')
    });
    ```
  
    @method property
    @param {String} path* zero or more property paths
    @return {Ember.ComputedProperty} this
    @chainable
  */
  ComputedPropertyPrototype.property = function() {
    var args = [];
    for (var i = 0, l = arguments.length; i < l; i++) {
      args.push(arguments[i]);
    }
    this._dependentKeys = args;
    return this;
  };
  
  /**
    In some cases, you may want to annotate computed properties with additional
    metadata about how they function or what values they operate on. For example,
    computed property functions may close over variables that are then no longer
    available for introspection.
  
    You can pass a hash of these values to a computed property like this:
  
    ```
    person: function() {
      var personId = this.get('personId');
      return App.Person.create({ id: personId });
    }.property().meta({ type: App.Person })
    ```
  
    The hash that you pass to the `meta()` function will be saved on the
    computed property descriptor under the `_meta` key. Ember runtime
    exposes a public API for retrieving these values from classes,
    via the `metaForProperty()` function.
  
    @method meta
    @param {Hash} meta
    @chainable
  */
  
  ComputedPropertyPrototype.meta = function(meta) {
    if (arguments.length === 0) {
      return this._meta || {};
    } else {
      this._meta = meta;
      return this;
    }
  };
  
  /* impl descriptor API */
  ComputedPropertyPrototype.willWatch = function(obj, keyName) {
    // watch already creates meta for this instance
    var meta = obj[META_KEY];
    Ember.assert('watch should have setup meta to be writable', meta.source === obj);
    if (!(keyName in meta.cache)) {
      addDependentKeys(this, obj, keyName, meta);
    }
  };
  
  ComputedPropertyPrototype.didUnwatch = function(obj, keyName) {
    var meta = obj[META_KEY];
    Ember.assert('unwatch should have setup meta to be writable', meta.source === obj);
    if (!(keyName in meta.cache)) {
      // unwatch already creates meta for this instance
      removeDependentKeys(this, obj, keyName, meta);
    }
  };
  
  /* impl descriptor API */
  ComputedPropertyPrototype.didChange = function(obj, keyName) {
    // _suspended is set via a CP.set to ensure we don't clear
    // the cached value set by the setter
    if (this._cacheable && this._suspended !== obj) {
      var meta = metaFor(obj);
      if (keyName in meta.cache) {
        delete meta.cache[keyName];
        if (!meta.watching[keyName]) {
          removeDependentKeys(this, obj, keyName, meta);
        }
      }
    }
  };
  
  /* impl descriptor API */
  ComputedPropertyPrototype.get = function(obj, keyName) {
    var ret, cache, meta;
    if (this._cacheable) {
      meta = metaFor(obj);
      cache = meta.cache;
      if (keyName in cache) { return cache[keyName]; }
      ret = cache[keyName] = this.func.call(obj, keyName);
      if (!meta.watching[keyName]) {
        addDependentKeys(this, obj, keyName, meta);
      }
    } else {
      ret = this.func.call(obj, keyName);
    }
    return ret;
  };
  
  /* impl descriptor API */
  ComputedPropertyPrototype.set = function(obj, keyName, value) {
    var cacheable = this._cacheable,
        func = this.func,
        meta = metaFor(obj, cacheable),
        watched = meta.watching[keyName],
        oldSuspended = this._suspended,
        hadCachedValue = false,
        cache = meta.cache,
        cachedValue, ret;
  
    if (this._readOnly) {
      throw new Error('Cannot Set: ' + keyName + ' on: ' + obj.toString() );
    }
  
    this._suspended = obj;
  
    try {
  
      if (cacheable && cache.hasOwnProperty(keyName)) {
        cachedValue = cache[keyName];
        hadCachedValue = true;
      }
  
      // Check if the CP has been wrapped
      if (func.wrappedFunction) { func = func.wrappedFunction; }
  
      // For backwards-compatibility with computed properties
      // that check for arguments.length === 2 to determine if
      // they are being get or set, only pass the old cached
      // value if the computed property opts into a third
      // argument.
      if (func.length === 3) {
        ret = func.call(obj, keyName, value, cachedValue);
      } else if (func.length === 2) {
        ret = func.call(obj, keyName, value);
      } else {
        Ember.defineProperty(obj, keyName, null, cachedValue);
        Ember.set(obj, keyName, value);
        return;
      }
  
      if (hadCachedValue && cachedValue === ret) { return; }
  
      if (watched) { Ember.propertyWillChange(obj, keyName); }
  
      if (hadCachedValue) {
        delete cache[keyName];
      }
  
      if (cacheable) {
        if (!watched && !hadCachedValue) {
          addDependentKeys(this, obj, keyName, meta);
        }
        cache[keyName] = ret;
      }
  
      if (watched) { Ember.propertyDidChange(obj, keyName); }
    } finally {
      this._suspended = oldSuspended;
    }
    return ret;
  };
  
  /* called when property is defined */
  ComputedPropertyPrototype.setup = function(obj, keyName) {
    var meta = obj[META_KEY];
    if (meta && meta.watching[keyName]) {
      addDependentKeys(this, obj, keyName, metaFor(obj));
    }
  };
  
  /* called before property is overridden */
  ComputedPropertyPrototype.teardown = function(obj, keyName) {
    var meta = metaFor(obj);
  
    if (meta.watching[keyName] || keyName in meta.cache) {
      removeDependentKeys(this, obj, keyName, meta);
    }
  
    if (this._cacheable) { delete meta.cache[keyName]; }
  
    return null; // no value to restore
  };
  
  
  /**
    This helper returns a new property descriptor that wraps the passed
    computed property function. You can use this helper to define properties
    with mixins or via `Ember.defineProperty()`.
  
    The function you pass will be used to both get and set property values.
    The function should accept two parameters, key and value. If value is not
    undefined you should set the value first. In either case return the
    current value of the property.
    @method computed
    @for Ember
    @param {Function} func The computed property function.
    @return {Ember.ComputedProperty} property descriptor instance
  */
  Ember.computed = function(func) {
    var args;
  
    if (arguments.length > 1) {
      args = a_slice.call(arguments, 0, -1);
      func = a_slice.call(arguments, -1)[0];
    }
  
    if ( typeof func !== "function" ) {
      throw new Error("Computed Property declared without a property function");
    }
  
    var cp = new ComputedProperty(func);
  
    if (args) {
      cp.property.apply(cp, args);
    }
  
    return cp;
  };
  
  /**
    Returns the cached value for a property, if one exists.
    This can be useful for peeking at the value of a computed
    property that is generated lazily, without accidentally causing
    it to be created.
  
    @method cacheFor
    @for Ember
    @param {Object} obj the object whose property you want to check
    @param {String} key the name of the property whose cached value you want
      to return
    @return {*} the cached value
  */
  Ember.cacheFor = function cacheFor(obj, key) {
    var cache = metaFor(obj, false).cache;
  
    if (cache && key in cache) {
      return cache[key];
    }
  };
  
  function getProperties(self, propertyNames) {
    var ret = {};
    for(var i = 0; i < propertyNames.length; i++) {
      ret[propertyNames[i]] = get(self, propertyNames[i]);
    }
    return ret;
  }
  
  function registerComputed(name, macro) {
    Ember.computed[name] = function(dependentKey) {
      var args = a_slice.call(arguments);
      return Ember.computed(dependentKey, function() {
        return macro.apply(this, args);
      });
    };
  }
  
  function registerComputedWithProperties(name, macro) {
    Ember.computed[name] = function() {
      var properties = a_slice.call(arguments);
  
      var computed = Ember.computed(function() {
        return macro.apply(this, [getProperties(this, properties)]);
      });
  
      return computed.property.apply(computed, properties);
    };
  }
  
  /**
    @method computed.empty
    @for Ember
    @param {String} dependentKey
    @return {Ember.ComputedProperty} computed property which negate
    the original value for property
  */
  registerComputed('empty', function(dependentKey) {
    return Ember.isEmpty(get(this, dependentKey));
  });
  
  /**
    @method computed.notEmpty
    @for Ember
    @param {String} dependentKey
    @return {Ember.ComputedProperty} computed property which returns true if
    original value for property is not empty.
  */
  registerComputed('notEmpty', function(dependentKey) {
    return !Ember.isEmpty(get(this, dependentKey));
  });
  
  /**
    @method computed.none
    @for Ember
    @param {String} dependentKey
    @return {Ember.ComputedProperty} computed property which
    rturns true if original value for property is null or undefined.
  */
  registerComputed('none', function(dependentKey) {
    return Ember.isNone(get(this, dependentKey));
  });
  
  /**
    @method computed.not
    @for Ember
    @param {String} dependentKey
    @return {Ember.ComputedProperty} computed property which returns
    inverse of the original value for property
  */
  registerComputed('not', function(dependentKey) {
    return !get(this, dependentKey);
  });
  
  /**
    @method computed.bool
    @for Ember
    @param {String} dependentKey
    @return {Ember.ComputedProperty} computed property which convert
    to boolean the original value for property
  */
  registerComputed('bool', function(dependentKey) {
    return !!get(this, dependentKey);
  });
  
  /**
    @method computed.match
    @for Ember
    @param {String} dependentKey
    @param {RegExp} regexp
    @return {Ember.ComputedProperty} computed property which match
    the original value for property against a given RegExp
  */
  registerComputed('match', function(dependentKey, regexp) {
    var value = get(this, dependentKey);
    return typeof value === 'string' ? !!value.match(regexp) : false;
  });
  
  /**
    @method computed.equal
    @for Ember
    @param {String} dependentKey
    @param {String|Number|Object} value
    @return {Ember.ComputedProperty} computed property which returns true if
    the original value for property is equal to the given value.
  */
  registerComputed('equal', function(dependentKey, value) {
    return get(this, dependentKey) === value;
  });
  
  /**
    @method computed.gt
    @for Ember
    @param {String} dependentKey
    @param {Number} value
    @return {Ember.ComputedProperty} computed property which returns true if
    the original value for property is greater then given value.
  */
  registerComputed('gt', function(dependentKey, value) {
    return get(this, dependentKey) > value;
  });
  
  /**
    @method computed.gte
    @for Ember
    @param {String} dependentKey
    @param {Number} value
    @return {Ember.ComputedProperty} computed property which returns true if
    the original value for property is greater or equal then given value.
  */
  registerComputed('gte', function(dependentKey, value) {
    return get(this, dependentKey) >= value;
  });
  
  /**
    @method computed.lt
    @for Ember
    @param {String} dependentKey
    @param {Number} value
    @return {Ember.ComputedProperty} computed property which returns true if
    the original value for property is less then given value.
  */
  registerComputed('lt', function(dependentKey, value) {
    return get(this, dependentKey) < value;
  });
  
  /**
    @method computed.lte
    @for Ember
    @param {String} dependentKey
    @param {Number} value
    @return {Ember.ComputedProperty} computed property which returns true if
    the original value for property is less or equal then given value.
  */
  registerComputed('lte', function(dependentKey, value) {
    return get(this, dependentKey) <= value;
  });
  
  /**
    @method computed.and
    @for Ember
    @param {String} dependentKey, [dependentKey...]
    @return {Ember.ComputedProperty} computed property which peforms
    a logical `and` on the values of all the original values for properties.
  */
  registerComputedWithProperties('and', function(properties) {
    for (var key in properties) {
      if (properties.hasOwnProperty(key) && !properties[key]) {
        return false;
      }
    }
    return true;
  });
  
  /**
    @method computed.or
    @for Ember
    @param {String} dependentKey, [dependentKey...]
    @return {Ember.ComputedProperty} computed property which peforms
    a logical `or` on the values of all the original values for properties.
  */
  registerComputedWithProperties('or', function(properties) {
    for (var key in properties) {
      if (properties.hasOwnProperty(key) && properties[key]) {
        return true;
      }
    }
    return false;
  });
  
  /**
    @method computed.any
    @for Ember
    @param {String} dependentKey, [dependentKey...]
    @return {Ember.ComputedProperty} computed property which returns
    the first truthy value of given list of properties.
  */
  registerComputedWithProperties('any', function(properties) {
    for (var key in properties) {
      if (properties.hasOwnProperty(key) && properties[key]) {
        return properties[key];
      }
    }
    return null;
  });
  
  /**
    @method computed.map
    @for Ember
    @param {String} dependentKey, [dependentKey...]
    @return {Ember.ComputedProperty} computed property which maps
    values of all passed properties in to an array.
  */
  registerComputedWithProperties('map', function(properties) {
    var res = [];
    for (var key in properties) {
      if (properties.hasOwnProperty(key)) {
        if (Ember.isNone(properties[key])) {
          res.push(null);
        } else {
          res.push(properties[key]);
        }
      }
    }
    return res;
  });
  
  /**
    @method computed.alias
    @for Ember
    @param {String} dependentKey
    @return {Ember.ComputedProperty} computed property which creates an
    alias to the original value for property.
  */
  Ember.computed.alias = function(dependentKey) {
    return Ember.computed(dependentKey, function(key, value){
      if (arguments.length > 1) {
        set(this, dependentKey, value);
        return value;
      } else {
        return get(this, dependentKey);
      }
    });
  };
  
  /**
    @method computed.oneWay
    @for Ember
    @param {String} dependentKey
    @return {Ember.ComputedProperty} computed property which creates an
    one way computed property to the original value for property.
  
    Where `computed.alias` aliases `get` and `set`, and allows for bidirectional
    data flow, `computed.oneWay` only provides an aliased `get`. The `set` will
    not mutate the upstream property, rather causes the current property to
    become the value set. This causes the downstream property to permentantly
    diverge from the upstream property.
  
    ```javascript
    User = Ember.Object.extend({
      firstName: null,
      lastName: null,
      nickName: Ember.computed.oneWay('firstName')
    });
  
    user = User.create({
      firstName: 'Teddy',
      lastName:  'Zeenny'
    });
  
    user.get('nickName');
    # 'Teddy'
  
    user.set('nickName', 'TeddyBear');
    # 'TeddyBear'
  
    user.get('firstName');
    # 'Teddy'
    ```
  */
  Ember.computed.oneWay = function(dependentKey) {
    return Ember.computed(dependentKey, function() {
      return get(this, dependentKey);
    });
  };
  
  
  /**
    @method computed.defaultTo
    @for Ember
    @param {String} defaultPath
    @return {Ember.ComputedProperty} computed property which acts like
    a standard getter and setter, but defaults to the value from `defaultPath`.
  */
  Ember.computed.defaultTo = function(defaultPath) {
    return Ember.computed(function(key, newValue, cachedValue) {
      if (arguments.length === 1) {
        return cachedValue != null ? cachedValue : get(this, defaultPath);
      }
      return newValue != null ? newValue : get(this, defaultPath);
    });
  };
  
  })();
  
  
  
  (function() {
  // Ember.tryFinally
  /**
  @module ember-metal
  */
  
  var AFTER_OBSERVERS = ':change';
  var BEFORE_OBSERVERS = ':before';
  
  function changeEvent(keyName) {
    return keyName+AFTER_OBSERVERS;
  }
  
  function beforeEvent(keyName) {
    return keyName+BEFORE_OBSERVERS;
  }
  
  /**
    @method addObserver
    @param obj
    @param {String} path
    @param {Object|Function} targetOrMethod
    @param {Function|String} [method]
  */
  Ember.addObserver = function(obj, path, target, method) {
    Ember.addListener(obj, changeEvent(path), target, method);
    Ember.watch(obj, path);
    return this;
  };
  
  Ember.observersFor = function(obj, path) {
    return Ember.listenersFor(obj, changeEvent(path));
  };
  
  /**
    @method removeObserver
    @param obj
    @param {String} path
    @param {Object|Function} targetOrMethod
    @param {Function|String} [method]
  */
  Ember.removeObserver = function(obj, path, target, method) {
    Ember.unwatch(obj, path);
    Ember.removeListener(obj, changeEvent(path), target, method);
    return this;
  };
  
  /**
    @method addBeforeObserver
    @param obj
    @param {String} path
    @param {Object|Function} targetOrMethod
    @param {Function|String} [method]
  */
  Ember.addBeforeObserver = function(obj, path, target, method) {
    Ember.addListener(obj, beforeEvent(path), target, method);
    Ember.watch(obj, path);
    return this;
  };
  
  // Suspend observer during callback.
  //
  // This should only be used by the target of the observer
  // while it is setting the observed path.
  Ember._suspendBeforeObserver = function(obj, path, target, method, callback) {
    return Ember._suspendListener(obj, beforeEvent(path), target, method, callback);
  };
  
  Ember._suspendObserver = function(obj, path, target, method, callback) {
    return Ember._suspendListener(obj, changeEvent(path), target, method, callback);
  };
  
  var map = Ember.ArrayPolyfills.map;
  
  Ember._suspendBeforeObservers = function(obj, paths, target, method, callback) {
    var events = map.call(paths, beforeEvent);
    return Ember._suspendListeners(obj, events, target, method, callback);
  };
  
  Ember._suspendObservers = function(obj, paths, target, method, callback) {
    var events = map.call(paths, changeEvent);
    return Ember._suspendListeners(obj, events, target, method, callback);
  };
  
  Ember.beforeObserversFor = function(obj, path) {
    return Ember.listenersFor(obj, beforeEvent(path));
  };
  
  /**
    @method removeBeforeObserver
    @param obj
    @param {String} path
    @param {Object|Function} targetOrMethod
    @param {Function|String} [method]
  */
  Ember.removeBeforeObserver = function(obj, path, target, method) {
    Ember.unwatch(obj, path);
    Ember.removeListener(obj, beforeEvent(path), target, method);
    return this;
  };
  })();
  
  
  
  (function() {
  define("backburner",
    ["backburner/deferred_action_queues","exports"],
    function(__dependency1__, __exports__) {
      "use strict";
      var DeferredActionQueues = __dependency1__.DeferredActionQueues;
  
      var slice = [].slice,
          pop = [].pop,
          debouncees = [],
          timers = [],
          autorun, laterTimer, laterTimerExpiresAt;
  
      function Backburner(queueNames, options) {
        this.queueNames = queueNames;
        this.options = options || {};
        if (!this.options.defaultQueue) {
          this.options.defaultQueue = queueNames[0];
        }
        this.instanceStack = [];
      }
  
      Backburner.prototype = {
        queueNames: null,
        options: null,
        currentInstance: null,
        instanceStack: null,
  
        begin: function() {
          var onBegin = this.options && this.options.onBegin,
              previousInstance = this.currentInstance;
  
          if (previousInstance) {
            this.instanceStack.push(previousInstance);
          }
  
          this.currentInstance = new DeferredActionQueues(this.queueNames, this.options);
          if (onBegin) {
            onBegin(this.currentInstance, previousInstance);
          }
        },
  
        end: function() {
          var onEnd = this.options && this.options.onEnd,
              currentInstance = this.currentInstance,
              nextInstance = null;
  
          try {
            currentInstance.flush();
          } finally {
            this.currentInstance = null;
  
            if (this.instanceStack.length) {
              nextInstance = this.instanceStack.pop();
              this.currentInstance = nextInstance;
            }
  
            if (onEnd) {
              onEnd(currentInstance, nextInstance);
            }
          }
        },
  
        run: function(target, method /*, args */) {
          var ret;
          this.begin();
  
          if (!method) {
            method = target;
            target = null;
          }
  
          if (typeof method === 'string') {
            method = target[method];
          }
  
          // Prevent Safari double-finally.
          var finallyAlreadyCalled = false;
          try {
            if (arguments.length > 2) {
              ret = method.apply(target, slice.call(arguments, 2));
            } else {
              ret = method.call(target);
            }
          } finally {
            if (!finallyAlreadyCalled) {
              finallyAlreadyCalled = true;
              this.end();
            }
          }
          return ret;
        },
  
        defer: function(queueName, target, method /* , args */) {
          if (!method) {
            method = target;
            target = null;
          }
  
          if (typeof method === 'string') {
            method = target[method];
          }
  
          var stack = this.DEBUG ? new Error().stack : undefined,
              args = arguments.length > 3 ? slice.call(arguments, 3) : undefined;
          if (!this.currentInstance) { createAutorun(this); }
          return this.currentInstance.schedule(queueName, target, method, args, false, stack);
        },
  
        deferOnce: function(queueName, target, method /* , args */) {
          if (!method) {
            method = target;
            target = null;
          }
  
          if (typeof method === 'string') {
            method = target[method];
          }
  
          var stack = this.DEBUG ? new Error().stack : undefined,
              args = arguments.length > 3 ? slice.call(arguments, 3) : undefined;
          if (!this.currentInstance) { createAutorun(this); }
          return this.currentInstance.schedule(queueName, target, method, args, true, stack);
        },
  
        setTimeout: function() {
          var self = this,
              wait = pop.call(arguments),
              target = arguments[0],
              method = arguments[1],
              executeAt = (+new Date()) + wait;
  
          if (!method) {
            method = target;
            target = null;
          }
  
          if (typeof method === 'string') {
            method = target[method];
          }
  
          var fn, args;
          if (arguments.length > 2) {
            args = slice.call(arguments, 2);
  
            fn = function() {
              method.apply(target, args);
            };
          } else {
            fn = function() {
              method.call(target);
            };
          }
  
          // find position to insert - TODO: binary search
          var i, l;
          for (i = 0, l = timers.length; i < l; i += 2) {
            if (executeAt < timers[i]) { break; }
          }
  
          timers.splice(i, 0, executeAt, fn);
  
          if (laterTimer && laterTimerExpiresAt < executeAt) { return fn; }
  
          if (laterTimer) {
            clearTimeout(laterTimer);
            laterTimer = null;
          }
          laterTimer = window.setTimeout(function() {
            executeTimers(self);
            laterTimer = null;
            laterTimerExpiresAt = null;
          }, wait);
          laterTimerExpiresAt = executeAt;
  
          return fn;
        },
  
        debounce: function(target, method /* , args, wait */) {
          var self = this,
              args = arguments,
              wait = pop.call(args),
              debouncee;
  
          for (var i = 0, l = debouncees.length; i < l; i++) {
            debouncee = debouncees[i];
            if (debouncee[0] === target && debouncee[1] === method) { return; } // do nothing
          }
  
          var timer = window.setTimeout(function() {
            self.run.apply(self, args);
  
            // remove debouncee
            var index = -1;
            for (var i = 0, l = debouncees.length; i < l; i++) {
              debouncee = debouncees[i];
              if (debouncee[0] === target && debouncee[1] === method) {
                index = i;
                break;
              }
            }
  
            if (index > -1) { debouncees.splice(index, 1); }
          }, wait);
  
          debouncees.push([target, method, timer]);
        },
  
        cancelTimers: function() {
          for (var i = 0, l = debouncees.length; i < l; i++) {
            clearTimeout(debouncees[i][2]);
          }
          debouncees = [];
  
          if (laterTimer) {
            clearTimeout(laterTimer);
            laterTimer = null;
          }
          timers = [];
  
          if (autorun) {
            clearTimeout(autorun);
            autorun = null;
          }
        },
  
        hasTimers: function() {
          return !!timers.length || autorun;
        },
  
        cancel: function(timer) {
          if (timer && typeof timer === 'object' && timer.queue && timer.method) { // we're cancelling a deferOnce
            return timer.queue.cancel(timer);
          } else if (typeof timer === 'function') { // we're cancelling a setTimeout
            for (var i = 0, l = timers.length; i < l; i += 2) {
              if (timers[i + 1] === timer) {
                timers.splice(i, 2); // remove the two elements
                return true;
              }
            }
          } else {
            return; // timer was null or not a timer
          }
        }
      };
  
      Backburner.prototype.schedule = Backburner.prototype.defer;
      Backburner.prototype.scheduleOnce = Backburner.prototype.deferOnce;
      Backburner.prototype.later = Backburner.prototype.setTimeout;
  
      function createAutorun(backburner) {
        backburner.begin();
        autorun = window.setTimeout(function() {
          backburner.end();
          autorun = null;
        });
      }
  
      function executeTimers(self) {
        var now = +new Date(),
            time, fns, i, l;
  
        self.run(function() {
          // TODO: binary search
          for (i = 0, l = timers.length; i < l; i += 2) {
            time = timers[i];
            if (time > now) { break; }
          }
  
          fns = timers.splice(0, i);
  
          for (i = 1, l = fns.length; i < l; i += 2) {
            self.schedule(self.options.defaultQueue, null, fns[i]);
          }
        });
  
        if (timers.length) {
          laterTimer = window.setTimeout(function() {
            executeTimers(self);
            laterTimer = null;
            laterTimerExpiresAt = null;
          }, timers[0] - now);
          laterTimerExpiresAt = timers[0];
        }
      }
  
  
      __exports__.Backburner = Backburner;
    });
  
  define("backburner/deferred_action_queues",
    ["backburner/queue","exports"],
    function(__dependency1__, __exports__) {
      "use strict";
      var Queue = __dependency1__.Queue;
  
      function DeferredActionQueues(queueNames, options) {
        var queues = this.queues = {};
        this.queueNames = queueNames = queueNames || [];
  
        var queueName;
        for (var i = 0, l = queueNames.length; i < l; i++) {
          queueName = queueNames[i];
          queues[queueName] = new Queue(this, queueName, options[queueName]);
        }
      }
  
      DeferredActionQueues.prototype = {
        queueNames: null,
        queues: null,
  
        schedule: function(queueName, target, method, args, onceFlag, stack) {
          var queues = this.queues,
              queue = queues[queueName];
  
          if (!queue) { throw new Error("You attempted to schedule an action in a queue (" + queueName + ") that doesn't exist"); }
  
          if (onceFlag) {
            return queue.pushUnique(target, method, args, stack);
          } else {
            return queue.push(target, method, args, stack);
          }
        },
  
        flush: function() {
          var queues = this.queues,
              queueNames = this.queueNames,
              queueName, queue, queueItems, priorQueueNameIndex,
              queueNameIndex = 0, numberOfQueues = queueNames.length;
  
          outerloop:
          while (queueNameIndex < numberOfQueues) {
            queueName = queueNames[queueNameIndex];
            queue = queues[queueName];
            queueItems = queue._queueBeingFlushed = queue._queue.slice();
            queue._queue = [];
  
            var options = queue.options,
                before = options && options.before,
                after = options && options.after,
                target, method, args, stack,
                queueIndex = 0, numberOfQueueItems = queueItems.length;
  
            if (numberOfQueueItems && before) { before(); }
            while (queueIndex < numberOfQueueItems) {
              target = queueItems[queueIndex];
              method = queueItems[queueIndex+1];
              args   = queueItems[queueIndex+2];
              stack  = queueItems[queueIndex+3]; // Debugging assistance
  
              if (typeof method === 'string') { method = target[method]; }
  
              // method could have been nullified / canceled during flush
              if (method) {
                // TODO: error handling
                if (args && args.length > 0) {
                  method.apply(target, args);
                } else {
                  method.call(target);
                }
              }
  
              queueIndex += 4;
            }
            queue._queueBeingFlushed = null;
            if (numberOfQueueItems && after) { after(); }
  
            if ((priorQueueNameIndex = indexOfPriorQueueWithActions(this, queueNameIndex)) !== -1) {
              queueNameIndex = priorQueueNameIndex;
              continue outerloop;
            }
  
            queueNameIndex++;
          }
        }
      };
  
      function indexOfPriorQueueWithActions(daq, currentQueueIndex) {
        var queueName, queue;
  
        for (var i = 0, l = currentQueueIndex; i <= l; i++) {
          queueName = daq.queueNames[i];
          queue = daq.queues[queueName];
          if (queue._queue.length) { return i; }
        }
  
        return -1;
      }
  
  
      __exports__.DeferredActionQueues = DeferredActionQueues;
    });
  
  define("backburner/queue",
    ["exports"],
    function(__exports__) {
      "use strict";
      function Queue(daq, name, options) {
        this.daq = daq;
        this.name = name;
        this.options = options;
        this._queue = [];
      }
  
      Queue.prototype = {
        daq: null,
        name: null,
        options: null,
        _queue: null,
  
        push: function(target, method, args, stack) {
          var queue = this._queue;
          queue.push(target, method, args, stack);
          return {queue: this, target: target, method: method};
        },
  
        pushUnique: function(target, method, args, stack) {
          var queue = this._queue, currentTarget, currentMethod, i, l;
  
          for (i = 0, l = queue.length; i < l; i += 4) {
            currentTarget = queue[i];
            currentMethod = queue[i+1];
  
            if (currentTarget === target && currentMethod === method) {
              queue[i+2] = args; // replace args
              queue[i+3] = stack; // replace stack
              return {queue: this, target: target, method: method}; // TODO: test this code path
            }
          }
  
          this._queue.push(target, method, args, stack);
          return {queue: this, target: target, method: method};
        },
  
        // TODO: remove me, only being used for Ember.run.sync
        flush: function() {
          var queue = this._queue,
              options = this.options,
              before = options && options.before,
              after = options && options.after,
              target, method, args, stack, i, l = queue.length;
  
          if (l && before) { before(); }
          for (i = 0; i < l; i += 4) {
            target = queue[i];
            method = queue[i+1];
            args   = queue[i+2];
            stack  = queue[i+3]; // Debugging assistance
  
            // TODO: error handling
            if (args && args.length > 0) {
              method.apply(target, args);
            } else {
              method.call(target);
            }
          }
          if (l && after) { after(); }
  
          // check if new items have been added
          if (queue.length > l) {
            this._queue = queue.slice(l);
            this.flush();
          } else {
            this._queue.length = 0;
          }
        },
  
        cancel: function(actionToCancel) {
          var queue = this._queue, currentTarget, currentMethod, i, l;
  
          for (i = 0, l = queue.length; i < l; i += 4) {
            currentTarget = queue[i];
            currentMethod = queue[i+1];
  
            if (currentTarget === actionToCancel.target && currentMethod === actionToCancel.method) {
              queue.splice(i, 4);
              return true;
            }
          }
  
          // if not found in current queue
          // could be in the queue that is being flushed
          queue = this._queueBeingFlushed;
          if (!queue) {
            return;
          }
          for (i = 0, l = queue.length; i < l; i += 4) {
            currentTarget = queue[i];
            currentMethod = queue[i+1];
  
            if (currentTarget === actionToCancel.target && currentMethod === actionToCancel.method) {
              // don't mess with array during flush
              // just nullify the method
              queue[i+1] = null;
              return true;
            }
          }
        }
      };
  
  
      __exports__.Queue = Queue;
    });
  })();
  
  
  
  (function() {
  var onBegin = function(current) {
    Ember.run.currentRunLoop = current;
  };
  
  var onEnd = function(current, next) {
    Ember.run.currentRunLoop = next;
  };
  
  var Backburner = requireModule('backburner').Backburner,
      backburner = new Backburner(['sync', 'actions', 'destroy'], {
        sync: {
          before: Ember.beginPropertyChanges,
          after: Ember.endPropertyChanges
        },
        defaultQueue: 'actions',
        onBegin: onBegin,
        onEnd: onEnd
      }),
      slice = [].slice;
  
  // ..........................................................
  // Ember.run - this is ideally the only public API the dev sees
  //
  
  /**
    Runs the passed target and method inside of a RunLoop, ensuring any
    deferred actions including bindings and views updates are flushed at the
    end.
  
    Normally you should not need to invoke this method yourself. However if
    you are implementing raw event handlers when interfacing with other
    libraries or plugins, you should probably wrap all of your code inside this
    call.
  
    ```javascript
    Ember.run(function(){
      // code to be execute within a RunLoop
    });
    ```
  
    @class run
    @namespace Ember
    @static
    @constructor
    @param {Object} [target] target of method to call
    @param {Function|String} method Method to invoke.
      May be a function or a string. If you pass a string
      then it will be looked up on the passed target.
    @param {Object} [args*] Any additional arguments you wish to pass to the method.
    @return {Object} return value from invoking the passed function.
  */
  Ember.run = function(target, method) {
    var ret;
  
    if (Ember.onerror) {
      try {
        ret = backburner.run.apply(backburner, arguments);
      } catch (e) {
        Ember.onerror(e);
      }
    } else {
      ret = backburner.run.apply(backburner, arguments);
    }
  
    return ret;
  };
  
  /**
  
    If no run-loop is present, it creates a new one. If a run loop is
    present it will queue itself to run on the existing run-loops action
    queue.
  
    Please note: This is not for normal usage, and should be used sparingly.
  
    If invoked when not within a run loop:
  
    ```javascript
    Ember.run.join(function(){
      // creates a new run-loop
    });
    ```
  
    Alternatively, if called within an existing run loop:
  
    ```javascript
    Ember.run(function(){
      // creates a new run-loop
      Ember.run.join(function(){
        // joins with the existing run-loop, and queues for invocation on
        // the existing run-loops action queue.
      });
    });
    ```
  
    @method join
    @namespace Ember
    @param {Object} [target] target of method to call
    @param {Function|String} method Method to invoke.
      May be a function or a string. If you pass a string
      then it will be looked up on the passed target.
    @param {Object} [args*] Any additional arguments you wish to pass to the method.
    @return {Object} return value from invoking the passed function. Please note,
    when called within an existing loop, no return value is possible.
  */
  Ember.run.join = function(target, method) {
    if (!Ember.run.currentRunLoop) {
      return Ember.run.apply(Ember.run, arguments);
    }
  
    var args = slice.call(arguments);
    args.unshift('actions');
    Ember.run.schedule.apply(Ember.run, args);
  };
  
  Ember.run.backburner = backburner;
  
  var run = Ember.run;
  
  Ember.run.currentRunLoop = null;
  
  Ember.run.queues = backburner.queueNames;
  
  /**
    Begins a new RunLoop. Any deferred actions invoked after the begin will
    be buffered until you invoke a matching call to `Ember.run.end()`. This is
    a lower-level way to use a RunLoop instead of using `Ember.run()`.
  
    ```javascript
    Ember.run.begin();
    // code to be execute within a RunLoop
    Ember.run.end();
    ```
  
    @method begin
    @return {void}
  */
  Ember.run.begin = function() {
    backburner.begin();
  };
  
  /**
    Ends a RunLoop. This must be called sometime after you call
    `Ember.run.begin()` to flush any deferred actions. This is a lower-level way
    to use a RunLoop instead of using `Ember.run()`.
  
    ```javascript
    Ember.run.begin();
    // code to be execute within a RunLoop
    Ember.run.end();
    ```
  
    @method end
    @return {void}
  */
  Ember.run.end = function() {
    backburner.end();
  };
  
  /**
    Array of named queues. This array determines the order in which queues
    are flushed at the end of the RunLoop. You can define your own queues by
    simply adding the queue name to this array. Normally you should not need
    to inspect or modify this property.
  
    @property queues
    @type Array
    @default ['sync', 'actions', 'destroy']
  */
  
  /**
    Adds the passed target/method and any optional arguments to the named
    queue to be executed at the end of the RunLoop. If you have not already
    started a RunLoop when calling this method one will be started for you
    automatically.
  
    At the end of a RunLoop, any methods scheduled in this way will be invoked.
    Methods will be invoked in an order matching the named queues defined in
    the `Ember.run.queues` property.
  
    ```javascript
    Ember.run.schedule('sync', this, function(){
      // this will be executed in the first RunLoop queue, when bindings are synced
      console.log("scheduled on sync queue");
    });
  
    Ember.run.schedule('actions', this, function(){
      // this will be executed in the 'actions' queue, after bindings have synced.
      console.log("scheduled on actions queue");
    });
  
    // Note the functions will be run in order based on the run queues order. Output would be:
    //   scheduled on sync queue
    //   scheduled on actions queue
    ```
  
    @method schedule
    @param {String} queue The name of the queue to schedule against.
      Default queues are 'sync' and 'actions'
    @param {Object} [target] target object to use as the context when invoking a method.
    @param {String|Function} method The method to invoke. If you pass a string it
      will be resolved on the target object at the time the scheduled item is
      invoked allowing you to change the target function.
    @param {Object} [arguments*] Optional arguments to be passed to the queued method.
    @return {void}
  */
  Ember.run.schedule = function(queue, target, method) {
    checkAutoRun();
    backburner.schedule.apply(backburner, arguments);
  };
  
  // Used by global test teardown
  Ember.run.hasScheduledTimers = function() {
    return backburner.hasTimers();
  };
  
  // Used by global test teardown
  Ember.run.cancelTimers = function () {
    backburner.cancelTimers();
  };
  
  /**
    Immediately flushes any events scheduled in the 'sync' queue. Bindings
    use this queue so this method is a useful way to immediately force all
    bindings in the application to sync.
  
    You should call this method anytime you need any changed state to propagate
    throughout the app immediately without repainting the UI (which happens
    in the later 'render' queue added by the `ember-views` package).
  
    ```javascript
    Ember.run.sync();
    ```
  
    @method sync
    @return {void}
  */
  Ember.run.sync = function() {
    if (backburner.currentInstance) {
      backburner.currentInstance.queues.sync.flush();
    }
  };
  
  /**
    Invokes the passed target/method and optional arguments after a specified
    period if time. The last parameter of this method must always be a number
    of milliseconds.
  
    You should use this method whenever you need to run some action after a
    period of time instead of using `setTimeout()`. This method will ensure that
    items that expire during the same script execution cycle all execute
    together, which is often more efficient than using a real setTimeout.
  
    ```javascript
    Ember.run.later(myContext, function(){
      // code here will execute within a RunLoop in about 500ms with this == myContext
    }, 500);
    ```
  
    @method later
    @param {Object} [target] target of method to invoke
    @param {Function|String} method The method to invoke.
      If you pass a string it will be resolved on the
      target at the time the method is invoked.
    @param {Object} [args*] Optional arguments to pass to the timeout.
    @param {Number} wait Number of milliseconds to wait.
    @return {String} a string you can use to cancel the timer in
      `Ember.run.cancel` later.
  */
  Ember.run.later = function(target, method) {
    return backburner.later.apply(backburner, arguments);
  };
  
  /**
    Schedule a function to run one time during the current RunLoop. This is equivalent
    to calling `scheduleOnce` with the "actions" queue.
  
    @method once
    @param {Object} [target] The target of the method to invoke.
    @param {Function|String} method The method to invoke.
      If you pass a string it will be resolved on the
      target at the time the method is invoked.
    @param {Object} [args*] Optional arguments to pass to the timeout.
    @return {Object} timer
  */
  Ember.run.once = function(target, method) {
    checkAutoRun();
    var args = slice.call(arguments);
    args.unshift('actions');
    return backburner.scheduleOnce.apply(backburner, args);
  };
  
  /**
    Schedules a function to run one time in a given queue of the current RunLoop.
    Calling this method with the same queue/target/method combination will have
    no effect (past the initial call).
  
    Note that although you can pass optional arguments these will not be
    considered when looking for duplicates. New arguments will replace previous
    calls.
  
    ```javascript
    Ember.run(function(){
      var sayHi = function() { console.log('hi'); }
      Ember.run.scheduleOnce('afterRender', myContext, sayHi);
      Ember.run.scheduleOnce('afterRender', myContext, sayHi);
      // doFoo will only be executed once, in the afterRender queue of the RunLoop
    });
    ```
  
    Also note that passing an anonymous function to `Ember.run.scheduleOnce` will
    not prevent additional calls with an identical anonymous function from
    scheduling the items multiple times, e.g.:
  
    ```javascript
    function scheduleIt() {
      Ember.run.scheduleOnce('actions', myContext, function() { console.log("Closure"); });
    }
    scheduleIt();
    scheduleIt();
    // "Closure" will print twice, even though we're using `Ember.run.scheduleOnce`,
    // because the function we pass to it is anonymous and won't match the
    // previously scheduled operation.
    ```
  
    Available queues, and their order, can be found at `Ember.run.queues`
  
    @method scheduleOnce
    @param {String} [queue] The name of the queue to schedule against. Default queues are 'sync' and 'actions'.
    @param {Object} [target] The target of the method to invoke.
    @param {Function|String} method The method to invoke.
      If you pass a string it will be resolved on the
      target at the time the method is invoked.
    @param {Object} [args*] Optional arguments to pass to the timeout.
    @return {Object} timer
  */
  Ember.run.scheduleOnce = function(queue, target, method) {
    checkAutoRun();
    return backburner.scheduleOnce.apply(backburner, arguments);
  };
  
  /**
    Schedules an item to run from within a separate run loop, after
    control has been returned to the system. This is equivalent to calling
    `Ember.run.later` with a wait time of 1ms.
  
    ```javascript
    Ember.run.next(myContext, function(){
      // code to be executed in the next run loop, which will be scheduled after the current one
    });
    ```
  
    Multiple operations scheduled with `Ember.run.next` will coalesce
    into the same later run loop, along with any other operations
    scheduled by `Ember.run.later` that expire right around the same
    time that `Ember.run.next` operations will fire.
  
    Note that there are often alternatives to using `Ember.run.next`.
    For instance, if you'd like to schedule an operation to happen
    after all DOM element operations have completed within the current
    run loop, you can make use of the `afterRender` run loop queue (added
    by the `ember-views` package, along with the preceding `render` queue
    where all the DOM element operations happen). Example:
  
    ```javascript
    App.MyCollectionView = Ember.CollectionView.extend({
      didInsertElement: function() {
        Ember.run.scheduleOnce('afterRender', this, 'processChildElements');
      },
      processChildElements: function() {
        // ... do something with collectionView's child view
        // elements after they've finished rendering, which
        // can't be done within the CollectionView's
        // `didInsertElement` hook because that gets run
        // before the child elements have been added to the DOM.
      }
    });
    ```
  
    One benefit of the above approach compared to using `Ember.run.next` is
    that you will be able to perform DOM/CSS operations before unprocessed
    elements are rendered to the screen, which may prevent flickering or
    other artifacts caused by delaying processing until after rendering.
  
    The other major benefit to the above approach is that `Ember.run.next`
    introduces an element of non-determinism, which can make things much
    harder to test, due to its reliance on `setTimeout`; it's much harder
    to guarantee the order of scheduled operations when they are scheduled
    outside of the current run loop, i.e. with `Ember.run.next`.
  
    @method next
    @param {Object} [target] target of method to invoke
    @param {Function|String} method The method to invoke.
      If you pass a string it will be resolved on the
      target at the time the method is invoked.
    @param {Object} [args*] Optional arguments to pass to the timeout.
    @return {Object} timer
  */
  Ember.run.next = function() {
    var args = slice.call(arguments);
    args.push(1);
    return backburner.later.apply(backburner, args);
  };
  
  /**
    Cancels a scheduled item. Must be a value returned by `Ember.run.later()`,
    `Ember.run.once()`, or `Ember.run.next()`.
  
    ```javascript
    var runNext = Ember.run.next(myContext, function(){
      // will not be executed
    });
    Ember.run.cancel(runNext);
  
    var runLater = Ember.run.later(myContext, function(){
      // will not be executed
    }, 500);
    Ember.run.cancel(runLater);
  
    var runOnce = Ember.run.once(myContext, function(){
      // will not be executed
    });
    Ember.run.cancel(runOnce);
    ```
  
    @method cancel
    @param {Object} timer Timer object to cancel
    @return {void}
  */
  Ember.run.cancel = function(timer) {
    return backburner.cancel(timer);
  };
  
  /**
    Execute the passed method in a specified amount of time, reset timer
    upon additional calls.
  
    ```javascript
      var myFunc = function() { console.log(this.name + ' ran.'); };
      var myContext = {name: 'debounce'};
  
      Ember.run.debounce(myContext, myFunc, 150);
  
      // less than 150ms passes
  
      Ember.run.debounce(myContext, myFunc, 150);
  
      // 150ms passes
      // myFunc is invoked with context myContext
      // console logs 'debounce ran.' one time.
    ```
  
    @method debounce
    @param {Object} [target] target of method to invoke
    @param {Function|String} method The method to invoke.
      May be a function or a string. If you pass a string
      then it will be looked up on the passed target.
    @param {Object} [args*] Optional arguments to pass to the timeout.
    @param {Number} wait Number of milliseconds to wait.
    @return {void}
  */
  Ember.run.debounce = function() {
    return backburner.debounce.apply(backburner, arguments);
  };
  
  // Make sure it's not an autorun during testing
  function checkAutoRun() {
    if (!Ember.run.currentRunLoop) {
      Ember.assert("You have turned on testing mode, which disabled the run-loop's autorun. You will need to wrap any code with asynchronous side-effects in an Ember.run", !Ember.testing);
    }
  }
  
  })();
  
  
  
  (function() {
  // Ember.Logger
  // get
  // set
  // guidFor, meta
  // addObserver, removeObserver
  // Ember.run.schedule
  /**
  @module ember-metal
  */
  
  // ..........................................................
  // CONSTANTS
  //
  
  /**
    Debug parameter you can turn on. This will log all bindings that fire to
    the console. This should be disabled in production code. Note that you
    can also enable this from the console or temporarily.
  
    @property LOG_BINDINGS
    @for Ember
    @type Boolean
    @default false
  */
  Ember.LOG_BINDINGS = false || !!Ember.ENV.LOG_BINDINGS;
  
  var get     = Ember.get,
      set     = Ember.set,
      guidFor = Ember.guidFor,
      IS_GLOBAL = /^([A-Z$]|([0-9][A-Z$]))/;
  
  /**
    Returns true if the provided path is global (e.g., `MyApp.fooController.bar`)
    instead of local (`foo.bar.baz`).
  
    @method isGlobalPath
    @for Ember
    @private
    @param {String} path
    @return Boolean
  */
  var isGlobalPath = Ember.isGlobalPath = function(path) {
    return IS_GLOBAL.test(path);
  };
  
  function getWithGlobals(obj, path) {
    return get(isGlobalPath(path) ? Ember.lookup : obj, path);
  }
  
  // ..........................................................
  // BINDING
  //
  
  var Binding = function(toPath, fromPath) {
    this._direction = 'fwd';
    this._from = fromPath;
    this._to   = toPath;
    this._directionMap = Ember.Map.create();
  };
  
  /**
  @class Binding
  @namespace Ember
  */
  
  Binding.prototype = {
    /**
      This copies the Binding so it can be connected to another object.
  
      @method copy
      @return {Ember.Binding}
    */
    copy: function () {
      var copy = new Binding(this._to, this._from);
      if (this._oneWay) { copy._oneWay = true; }
      return copy;
    },
  
    // ..........................................................
    // CONFIG
    //
  
    /**
      This will set `from` property path to the specified value. It will not
      attempt to resolve this property path to an actual object until you
      connect the binding.
  
      The binding will search for the property path starting at the root object
      you pass when you `connect()` the binding. It follows the same rules as
      `get()` - see that method for more information.
  
      @method from
      @param {String} path the property path to connect to
      @return {Ember.Binding} `this`
    */
    from: function(path) {
      this._from = path;
      return this;
    },
  
    /**
      This will set the `to` property path to the specified value. It will not
      attempt to resolve this property path to an actual object until you
      connect the binding.
  
      The binding will search for the property path starting at the root object
      you pass when you `connect()` the binding. It follows the same rules as
      `get()` - see that method for more information.
  
      @method to
      @param {String|Tuple} path A property path or tuple
      @return {Ember.Binding} `this`
    */
    to: function(path) {
      this._to = path;
      return this;
    },
  
    /**
      Configures the binding as one way. A one-way binding will relay changes
      on the `from` side to the `to` side, but not the other way around. This
      means that if you change the `to` side directly, the `from` side may have
      a different value.
  
      @method oneWay
      @return {Ember.Binding} `this`
    */
    oneWay: function() {
      this._oneWay = true;
      return this;
    },
  
    /**
      @method toString
      @return {String} string representation of binding
    */
    toString: function() {
      var oneWay = this._oneWay ? '[oneWay]' : '';
      return "Ember.Binding<" + guidFor(this) + ">(" + this._from + " -> " + this._to + ")" + oneWay;
    },
  
    // ..........................................................
    // CONNECT AND SYNC
    //
  
    /**
      Attempts to connect this binding instance so that it can receive and relay
      changes. This method will raise an exception if you have not set the
      from/to properties yet.
  
      @method connect
      @param {Object} obj The root object for this binding.
      @return {Ember.Binding} `this`
    */
    connect: function(obj) {
      Ember.assert('Must pass a valid object to Ember.Binding.connect()', !!obj);
  
      var fromPath = this._from, toPath = this._to;
      Ember.trySet(obj, toPath, getWithGlobals(obj, fromPath));
  
      // add an observer on the object to be notified when the binding should be updated
      Ember.addObserver(obj, fromPath, this, this.fromDidChange);
  
      // if the binding is a two-way binding, also set up an observer on the target
      if (!this._oneWay) { Ember.addObserver(obj, toPath, this, this.toDidChange); }
  
      this._readyToSync = true;
  
      return this;
    },
  
    /**
      Disconnects the binding instance. Changes will no longer be relayed. You
      will not usually need to call this method.
  
      @method disconnect
      @param {Object} obj The root object you passed when connecting the binding.
      @return {Ember.Binding} `this`
    */
    disconnect: function(obj) {
      Ember.assert('Must pass a valid object to Ember.Binding.disconnect()', !!obj);
  
      var twoWay = !this._oneWay;
  
      // remove an observer on the object so we're no longer notified of
      // changes that should update bindings.
      Ember.removeObserver(obj, this._from, this, this.fromDidChange);
  
      // if the binding is two-way, remove the observer from the target as well
      if (twoWay) { Ember.removeObserver(obj, this._to, this, this.toDidChange); }
  
      this._readyToSync = false; // disable scheduled syncs...
      return this;
    },
  
    // ..........................................................
    // PRIVATE
    //
  
    /* called when the from side changes */
    fromDidChange: function(target) {
      this._scheduleSync(target, 'fwd');
    },
  
    /* called when the to side changes */
    toDidChange: function(target) {
      this._scheduleSync(target, 'back');
    },
  
    _scheduleSync: function(obj, dir) {
      var directionMap = this._directionMap;
      var existingDir = directionMap.get(obj);
  
      // if we haven't scheduled the binding yet, schedule it
      if (!existingDir) {
        Ember.run.schedule('sync', this, this._sync, obj);
        directionMap.set(obj, dir);
      }
  
      // If both a 'back' and 'fwd' sync have been scheduled on the same object,
      // default to a 'fwd' sync so that it remains deterministic.
      if (existingDir === 'back' && dir === 'fwd') {
        directionMap.set(obj, 'fwd');
      }
    },
  
    _sync: function(obj) {
      var log = Ember.LOG_BINDINGS;
  
      // don't synchronize destroyed objects or disconnected bindings
      if (obj.isDestroyed || !this._readyToSync) { return; }
  
      // get the direction of the binding for the object we are
      // synchronizing from
      var directionMap = this._directionMap;
      var direction = directionMap.get(obj);
  
      var fromPath = this._from, toPath = this._to;
  
      directionMap.remove(obj);
  
      // if we're synchronizing from the remote object...
      if (direction === 'fwd') {
        var fromValue = getWithGlobals(obj, this._from);
        if (log) {
          Ember.Logger.log(' ', this.toString(), '->', fromValue, obj);
        }
        if (this._oneWay) {
          Ember.trySet(obj, toPath, fromValue);
        } else {
          Ember._suspendObserver(obj, toPath, this, this.toDidChange, function () {
            Ember.trySet(obj, toPath, fromValue);
          });
        }
      // if we're synchronizing *to* the remote object
      } else if (direction === 'back') {
        var toValue = get(obj, this._to);
        if (log) {
          Ember.Logger.log(' ', this.toString(), '<-', toValue, obj);
        }
        Ember._suspendObserver(obj, fromPath, this, this.fromDidChange, function () {
          Ember.trySet(Ember.isGlobalPath(fromPath) ? Ember.lookup : obj, fromPath, toValue);
        });
      }
    }
  
  };
  
  function mixinProperties(to, from) {
    for (var key in from) {
      if (from.hasOwnProperty(key)) {
        to[key] = from[key];
      }
    }
  }
  
  mixinProperties(Binding, {
  
    /**
      See `Ember.Binding.from`.
  
      @method from
      @static
    */
    from: function() {
      var C = this, binding = new C();
      return binding.from.apply(binding, arguments);
    },
  
    /**
      See `Ember.Binding.to`.
  
      @method to
      @static
    */
    to: function() {
      var C = this, binding = new C();
      return binding.to.apply(binding, arguments);
    },
  
    /**
      Creates a new Binding instance and makes it apply in a single direction.
      A one-way binding will relay changes on the `from` side object (supplied
      as the `from` argument) the `to` side, but not the other way around.
      This means that if you change the "to" side directly, the "from" side may have
      a different value.
  
      See `Binding.oneWay`.
  
      @method oneWay
      @param {String} from from path.
      @param {Boolean} [flag] (Optional) passing nothing here will make the
        binding `oneWay`. You can instead pass `false` to disable `oneWay`, making the
        binding two way again.
    */
    oneWay: function(from, flag) {
      var C = this, binding = new C(null, from);
      return binding.oneWay(flag);
    }
  
  });
  
  /**
    An `Ember.Binding` connects the properties of two objects so that whenever
    the value of one property changes, the other property will be changed also.
  
    ## Automatic Creation of Bindings with `/^*Binding/`-named Properties
  
    You do not usually create Binding objects directly but instead describe
    bindings in your class or object definition using automatic binding
    detection.
  
    Properties ending in a `Binding` suffix will be converted to `Ember.Binding`
    instances. The value of this property should be a string representing a path
    to another object or a custom binding instanced created using Binding helpers
    (see "One Way Bindings"):
  
    ```
    valueBinding: "MyApp.someController.title"
    ```
  
    This will create a binding from `MyApp.someController.title` to the `value`
    property of your object instance automatically. Now the two values will be
    kept in sync.
  
    ## One Way Bindings
  
    One especially useful binding customization you can use is the `oneWay()`
    helper. This helper tells Ember that you are only interested in
    receiving changes on the object you are binding from. For example, if you
    are binding to a preference and you want to be notified if the preference
    has changed, but your object will not be changing the preference itself, you
    could do:
  
    ```
    bigTitlesBinding: Ember.Binding.oneWay("MyApp.preferencesController.bigTitles")
    ```
  
    This way if the value of `MyApp.preferencesController.bigTitles` changes the
    `bigTitles` property of your object will change also. However, if you
    change the value of your `bigTitles` property, it will not update the
    `preferencesController`.
  
    One way bindings are almost twice as fast to setup and twice as fast to
    execute because the binding only has to worry about changes to one side.
  
    You should consider using one way bindings anytime you have an object that
    may be created frequently and you do not intend to change a property; only
    to monitor it for changes (such as in the example above).
  
    ## Adding Bindings Manually
  
    All of the examples above show you how to configure a custom binding, but the
    result of these customizations will be a binding template, not a fully active
    Binding instance. The binding will actually become active only when you
    instantiate the object the binding belongs to. It is useful however, to
    understand what actually happens when the binding is activated.
  
    For a binding to function it must have at least a `from` property and a `to`
    property. The `from` property path points to the object/key that you want to
    bind from while the `to` path points to the object/key you want to bind to.
  
    When you define a custom binding, you are usually describing the property
    you want to bind from (such as `MyApp.someController.value` in the examples
    above). When your object is created, it will automatically assign the value
    you want to bind `to` based on the name of your binding key. In the
    examples above, during init, Ember objects will effectively call
    something like this on your binding:
  
    ```javascript
    binding = Ember.Binding.from(this.valueBinding).to("value");
    ```
  
    This creates a new binding instance based on the template you provide, and
    sets the to path to the `value` property of the new object. Now that the
    binding is fully configured with a `from` and a `to`, it simply needs to be
    connected to become active. This is done through the `connect()` method:
  
    ```javascript
    binding.connect(this);
    ```
  
    Note that when you connect a binding you pass the object you want it to be
    connected to. This object will be used as the root for both the from and
    to side of the binding when inspecting relative paths. This allows the
    binding to be automatically inherited by subclassed objects as well.
  
    Now that the binding is connected, it will observe both the from and to side
    and relay changes.
  
    If you ever needed to do so (you almost never will, but it is useful to
    understand this anyway), you could manually create an active binding by
    using the `Ember.bind()` helper method. (This is the same method used by
    to setup your bindings on objects):
  
    ```javascript
    Ember.bind(MyApp.anotherObject, "value", "MyApp.someController.value");
    ```
  
    Both of these code fragments have the same effect as doing the most friendly
    form of binding creation like so:
  
    ```javascript
    MyApp.anotherObject = Ember.Object.create({
      valueBinding: "MyApp.someController.value",
  
      // OTHER CODE FOR THIS OBJECT...
    });
    ```
  
    Ember's built in binding creation method makes it easy to automatically
    create bindings for you. You should always use the highest-level APIs
    available, even if you understand how it works underneath.
  
    @class Binding
    @namespace Ember
    @since Ember 0.9
  */
  Ember.Binding = Binding;
  
  
  /**
    Global helper method to create a new binding. Just pass the root object
    along with a `to` and `from` path to create and connect the binding.
  
    @method bind
    @for Ember
    @param {Object} obj The root object of the transform.
    @param {String} to The path to the 'to' side of the binding.
      Must be relative to obj.
    @param {String} from The path to the 'from' side of the binding.
      Must be relative to obj or a global path.
    @return {Ember.Binding} binding instance
  */
  Ember.bind = function(obj, to, from) {
    return new Ember.Binding(to, from).connect(obj);
  };
  
  /**
    @method oneWay
    @for Ember
    @param {Object} obj The root object of the transform.
    @param {String} to The path to the 'to' side of the binding.
      Must be relative to obj.
    @param {String} from The path to the 'from' side of the binding.
      Must be relative to obj or a global path.
    @return {Ember.Binding} binding instance
  */
  Ember.oneWay = function(obj, to, from) {
    return new Ember.Binding(to, from).oneWay().connect(obj);
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember-metal
  */
  
  var Mixin, REQUIRED, Alias,
      a_map = Ember.ArrayPolyfills.map,
      a_indexOf = Ember.ArrayPolyfills.indexOf,
      a_forEach = Ember.ArrayPolyfills.forEach,
      a_slice = [].slice,
      o_create = Ember.create,
      defineProperty = Ember.defineProperty,
      guidFor = Ember.guidFor;
  
  function mixinsMeta(obj) {
    var m = Ember.meta(obj, true), ret = m.mixins;
    if (!ret) {
      ret = m.mixins = {};
    } else if (!m.hasOwnProperty('mixins')) {
      ret = m.mixins = o_create(ret);
    }
    return ret;
  }
  
  function initMixin(mixin, args) {
    if (args && args.length > 0) {
      mixin.mixins = a_map.call(args, function(x) {
        if (x instanceof Mixin) { return x; }
  
        // Note: Manually setup a primitive mixin here. This is the only
        // way to actually get a primitive mixin. This way normal creation
        // of mixins will give you combined mixins...
        var mixin = new Mixin();
        mixin.properties = x;
        return mixin;
      });
    }
    return mixin;
  }
  
  function isMethod(obj) {
    return 'function' === typeof obj &&
           obj.isMethod !== false &&
           obj !== Boolean && obj !== Object && obj !== Number && obj !== Array && obj !== Date && obj !== String;
  }
  
  var CONTINUE = {};
  
  function mixinProperties(mixinsMeta, mixin) {
    var guid;
  
    if (mixin instanceof Mixin) {
      guid = guidFor(mixin);
      if (mixinsMeta[guid]) { return CONTINUE; }
      mixinsMeta[guid] = mixin;
      return mixin.properties;
    } else {
      return mixin; // apply anonymous mixin properties
    }
  }
  
  function concatenatedProperties(props, values, base) {
    var concats;
  
    // reset before adding each new mixin to pickup concats from previous
    concats = values.concatenatedProperties || base.concatenatedProperties;
    if (props.concatenatedProperties) {
      concats = concats ? concats.concat(props.concatenatedProperties) : props.concatenatedProperties;
    }
  
    return concats;
  }
  
  function giveDescriptorSuper(meta, key, property, values, descs) {
    var superProperty;
  
    // Computed properties override methods, and do not call super to them
    if (values[key] === undefined) {
      // Find the original descriptor in a parent mixin
      superProperty = descs[key];
    }
  
    // If we didn't find the original descriptor in a parent mixin, find
    // it on the original object.
    superProperty = superProperty || meta.descs[key];
  
    if (!superProperty || !(superProperty instanceof Ember.ComputedProperty)) {
      return property;
    }
  
    // Since multiple mixins may inherit from the same parent, we need
    // to clone the computed property so that other mixins do not receive
    // the wrapped version.
    property = o_create(property);
    property.func = Ember.wrap(property.func, superProperty.func);
  
    return property;
  }
  
  function giveMethodSuper(obj, key, method, values, descs) {
    var superMethod;
  
    // Methods overwrite computed properties, and do not call super to them.
    if (descs[key] === undefined) {
      // Find the original method in a parent mixin
      superMethod = values[key];
    }
  
    // If we didn't find the original value in a parent mixin, find it in
    // the original object
    superMethod = superMethod || obj[key];
  
    // Only wrap the new method if the original method was a function
    if ('function' !== typeof superMethod) {
      return method;
    }
  
    return Ember.wrap(method, superMethod);
  }
  
  function applyConcatenatedProperties(obj, key, value, values) {
    var baseValue = values[key] || obj[key];
  
    if (baseValue) {
      if ('function' === typeof baseValue.concat) {
        return baseValue.concat(value);
      } else {
        return Ember.makeArray(baseValue).concat(value);
      }
    } else {
      return Ember.makeArray(value);
    }
  }
  
  function addNormalizedProperty(base, key, value, meta, descs, values, concats) {
    if (value instanceof Ember.Descriptor) {
      if (value === REQUIRED && descs[key]) { return CONTINUE; }
  
      // Wrap descriptor function to implement
      // _super() if needed
      if (value.func) {
        value = giveDescriptorSuper(meta, key, value, values, descs);
      }
  
      descs[key]  = value;
      values[key] = undefined;
    } else {
      // impl super if needed...
      if (isMethod(value)) {
        value = giveMethodSuper(base, key, value, values, descs);
      } else if ((concats && a_indexOf.call(concats, key) >= 0) || key === 'concatenatedProperties') {
        value = applyConcatenatedProperties(base, key, value, values);
      }
  
      descs[key] = undefined;
      values[key] = value;
    }
  }
  
  function mergeMixins(mixins, m, descs, values, base, keys) {
    var mixin, props, key, concats, meta;
  
    function removeKeys(keyName) {
      delete descs[keyName];
      delete values[keyName];
    }
  
    for(var i=0, l=mixins.length; i<l; i++) {
      mixin = mixins[i];
      Ember.assert('Expected hash or Mixin instance, got ' + Object.prototype.toString.call(mixin), typeof mixin === 'object' && mixin !== null && Object.prototype.toString.call(mixin) !== '[object Array]');
  
      props = mixinProperties(m, mixin);
      if (props === CONTINUE) { continue; }
  
      if (props) {
        meta = Ember.meta(base);
        concats = concatenatedProperties(props, values, base);
  
        for (key in props) {
          if (!props.hasOwnProperty(key)) { continue; }
          keys.push(key);
          addNormalizedProperty(base, key, props[key], meta, descs, values, concats);
        }
  
        // manually copy toString() because some JS engines do not enumerate it
        if (props.hasOwnProperty('toString')) { base.toString = props.toString; }
      } else if (mixin.mixins) {
        mergeMixins(mixin.mixins, m, descs, values, base, keys);
        if (mixin._without) { a_forEach.call(mixin._without, removeKeys); }
      }
    }
  }
  
  var IS_BINDING = Ember.IS_BINDING = /^.+Binding$/;
  
  function detectBinding(obj, key, value, m) {
    if (IS_BINDING.test(key)) {
      var bindings = m.bindings;
      if (!bindings) {
        bindings = m.bindings = {};
      } else if (!m.hasOwnProperty('bindings')) {
        bindings = m.bindings = o_create(m.bindings);
      }
      bindings[key] = value;
    }
  }
  
  function connectBindings(obj, m) {
    // TODO Mixin.apply(instance) should disconnect binding if exists
    var bindings = m.bindings, key, binding, to;
    if (bindings) {
      for (key in bindings) {
        binding = bindings[key];
        if (binding) {
          to = key.slice(0, -7); // strip Binding off end
          if (binding instanceof Ember.Binding) {
            binding = binding.copy(); // copy prototypes' instance
            binding.to(to);
          } else { // binding is string path
            binding = new Ember.Binding(to, binding);
          }
          binding.connect(obj);
          obj[key] = binding;
        }
      }
      // mark as applied
      m.bindings = {};
    }
  }
  
  function finishPartial(obj, m) {
    connectBindings(obj, m || Ember.meta(obj));
    return obj;
  }
  
  function followAlias(obj, desc, m, descs, values) {
    var altKey = desc.methodName, value;
    if (descs[altKey] || values[altKey]) {
      value = values[altKey];
      desc  = descs[altKey];
    } else if (m.descs[altKey]) {
      desc  = m.descs[altKey];
      value = undefined;
    } else {
      desc = undefined;
      value = obj[altKey];
    }
  
    return { desc: desc, value: value };
  }
  
  function updateObservers(obj, key, observer, observerKey, method) {
    if ('function' !== typeof observer) { return; }
  
    var paths = observer[observerKey];
  
    if (paths) {
      for (var i=0, l=paths.length; i<l; i++) {
        Ember[method](obj, paths[i], null, key);
      }
    }
  }
  
  function replaceObservers(obj, key, observer) {
    var prevObserver = obj[key];
  
    updateObservers(obj, key, prevObserver, '__ember_observesBefore__', 'removeBeforeObserver');
    updateObservers(obj, key, prevObserver, '__ember_observes__', 'removeObserver');
  
    updateObservers(obj, key, observer, '__ember_observesBefore__', 'addBeforeObserver');
    updateObservers(obj, key, observer, '__ember_observes__', 'addObserver');
  }
  
  function applyMixin(obj, mixins, partial) {
    var descs = {}, values = {}, m = Ember.meta(obj),
        key, value, desc, keys = [];
  
    // Go through all mixins and hashes passed in, and:
    //
    // * Handle concatenated properties
    // * Set up _super wrapping if necessary
    // * Set up computed property descriptors
    // * Copying `toString` in broken browsers
    mergeMixins(mixins, mixinsMeta(obj), descs, values, obj, keys);
  
    for(var i = 0, l = keys.length; i < l; i++) {
      key = keys[i];
      if (key === 'constructor' || !values.hasOwnProperty(key)) { continue; }
  
      desc = descs[key];
      value = values[key];
  
      if (desc === REQUIRED) { continue; }
  
      while (desc && desc instanceof Alias) {
        var followed = followAlias(obj, desc, m, descs, values);
        desc = followed.desc;
        value = followed.value;
      }
  
      if (desc === undefined && value === undefined) { continue; }
  
      replaceObservers(obj, key, value);
      detectBinding(obj, key, value, m);
      defineProperty(obj, key, desc, value, m);
    }
  
    if (!partial) { // don't apply to prototype
      finishPartial(obj, m);
    }
  
    return obj;
  }
  
  /**
    @method mixin
    @for Ember
    @param obj
    @param mixins*
    @return obj
  */
  Ember.mixin = function(obj) {
    var args = a_slice.call(arguments, 1);
    applyMixin(obj, args, false);
    return obj;
  };
  
  /**
    The `Ember.Mixin` class allows you to create mixins, whose properties can be
    added to other classes. For instance,
  
    ```javascript
    App.Editable = Ember.Mixin.create({
      edit: function() {
        console.log('starting to edit');
        this.set('isEditing', true);
      },
      isEditing: false
    });
  
    // Mix mixins into classes by passing them as the first arguments to
    // .extend.
    App.CommentView = Ember.View.extend(App.Editable, {
      template: Ember.Handlebars.compile('{{#if isEditing}}...{{else}}...{{/if}}')
    });
  
    commentView = App.CommentView.create();
    commentView.edit(); // outputs 'starting to edit'
    ```
  
    Note that Mixins are created with `Ember.Mixin.create`, not
    `Ember.Mixin.extend`.
  
    @class Mixin
    @namespace Ember
  */
  Ember.Mixin = function() { return initMixin(this, arguments); };
  
  Mixin = Ember.Mixin;
  
  Mixin.prototype = {
    properties: null,
    mixins: null,
    ownerConstructor: null
  };
  
  Mixin._apply = applyMixin;
  
  Mixin.applyPartial = function(obj) {
    var args = a_slice.call(arguments, 1);
    return applyMixin(obj, args, true);
  };
  
  Mixin.finishPartial = finishPartial;
  
  Ember.anyUnprocessedMixins = false;
  
  /**
    Creates an instance of a class. Accepts either no arguments, or an object
    containing values to initialize the newly instantiated object with.
  
    ```javascript
    App.Person = Ember.Object.extend({
      helloWorld: function() {
        alert("Hi, my name is " + this.get('name'));
      }
    });
  
    var tom = App.Person.create({
      name: 'Tom Dale'
    });
  
    tom.helloWorld(); // alerts "Hi, my name is Tom Dale".
    ```
  
    `create` will call the `init` function if defined during
    `Ember.AnyObject.extend`
  
    If no arguments are passed to `create`, it will not set values to the new
    instance during initialization:
  
    ```javascript
    var noName = App.Person.create();
    noName.helloWorld(); // alerts undefined
    ```
  
    NOTE: For performance reasons, you cannot declare methods or computed
    properties during `create`. You should instead declare methods and computed
    properties when using `extend`.
  
    @method create
    @static
    @param arguments*
  */
  Mixin.create = function() {
    Ember.anyUnprocessedMixins = true;
    var M = this;
    return initMixin(new M(), arguments);
  };
  
  var MixinPrototype = Mixin.prototype;
  
  /**
    @method reopen
    @param arguments*
  */
  MixinPrototype.reopen = function() {
    var mixin, tmp;
  
    if (this.properties) {
      mixin = Mixin.create();
      mixin.properties = this.properties;
      delete this.properties;
      this.mixins = [mixin];
    } else if (!this.mixins) {
      this.mixins = [];
    }
  
    var len = arguments.length, mixins = this.mixins, idx;
  
    for(idx=0; idx < len; idx++) {
      mixin = arguments[idx];
      Ember.assert('Expected hash or Mixin instance, got ' + Object.prototype.toString.call(mixin), typeof mixin === 'object' && mixin !== null && Object.prototype.toString.call(mixin) !== '[object Array]');
  
      if (mixin instanceof Mixin) {
        mixins.push(mixin);
      } else {
        tmp = Mixin.create();
        tmp.properties = mixin;
        mixins.push(tmp);
      }
    }
  
    return this;
  };
  
  /**
    @method apply
    @param obj
    @return applied object
  */
  MixinPrototype.apply = function(obj) {
    return applyMixin(obj, [this], false);
  };
  
  MixinPrototype.applyPartial = function(obj) {
    return applyMixin(obj, [this], true);
  };
  
  function _detect(curMixin, targetMixin, seen) {
    var guid = guidFor(curMixin);
  
    if (seen[guid]) { return false; }
    seen[guid] = true;
  
    if (curMixin === targetMixin) { return true; }
    var mixins = curMixin.mixins, loc = mixins ? mixins.length : 0;
    while (--loc >= 0) {
      if (_detect(mixins[loc], targetMixin, seen)) { return true; }
    }
    return false;
  }
  
  /**
    @method detect
    @param obj
    @return {Boolean}
  */
  MixinPrototype.detect = function(obj) {
    if (!obj) { return false; }
    if (obj instanceof Mixin) { return _detect(obj, this, {}); }
    var mixins = Ember.meta(obj, false).mixins;
    if (mixins) {
      return !!mixins[guidFor(this)];
    }
    return false;
  };
  
  MixinPrototype.without = function() {
    var ret = new Mixin(this);
    ret._without = a_slice.call(arguments);
    return ret;
  };
  
  function _keys(ret, mixin, seen) {
    if (seen[guidFor(mixin)]) { return; }
    seen[guidFor(mixin)] = true;
  
    if (mixin.properties) {
      var props = mixin.properties;
      for (var key in props) {
        if (props.hasOwnProperty(key)) { ret[key] = true; }
      }
    } else if (mixin.mixins) {
      a_forEach.call(mixin.mixins, function(x) { _keys(ret, x, seen); });
    }
  }
  
  MixinPrototype.keys = function() {
    var keys = {}, seen = {}, ret = [];
    _keys(keys, this, seen);
    for(var key in keys) {
      if (keys.hasOwnProperty(key)) { ret.push(key); }
    }
    return ret;
  };
  
  // returns the mixins currently applied to the specified object
  // TODO: Make Ember.mixin
  Mixin.mixins = function(obj) {
    var mixins = Ember.meta(obj, false).mixins, ret = [];
  
    if (!mixins) { return ret; }
  
    for (var key in mixins) {
      var mixin = mixins[key];
  
      // skip primitive mixins since these are always anonymous
      if (!mixin.properties) { ret.push(mixin); }
    }
  
    return ret;
  };
  
  REQUIRED = new Ember.Descriptor();
  REQUIRED.toString = function() { return '(Required Property)'; };
  
  /**
    Denotes a required property for a mixin
  
    @method required
    @for Ember
  */
  Ember.required = function() {
    return REQUIRED;
  };
  
  Alias = function(methodName) {
    this.methodName = methodName;
  };
  Alias.prototype = new Ember.Descriptor();
  
  /**
    Makes a property or method available via an additional name.
  
    ```javascript
    App.PaintSample = Ember.Object.extend({
      color: 'red',
      colour: Ember.alias('color'),
      name: function(){
        return "Zed";
      },
      moniker: Ember.alias("name")
    });
  
    var paintSample = App.PaintSample.create()
    paintSample.get('colour');  // 'red'
    paintSample.moniker();      // 'Zed'
    ```
  
    @method alias
    @for Ember
    @param {String} methodName name of the method or property to alias
    @return {Ember.Descriptor}
    @deprecated Use `Ember.aliasMethod` or `Ember.computed.alias` instead
  */
  Ember.alias = function(methodName) {
    return new Alias(methodName);
  };
  
  Ember.alias = Ember.deprecateFunc("Ember.alias is deprecated. Please use Ember.aliasMethod or Ember.computed.alias instead.", Ember.alias);
  
  /**
    Makes a method available via an additional name.
  
    ```javascript
    App.Person = Ember.Object.extend({
      name: function(){
        return 'Tomhuda Katzdale';
      },
      moniker: Ember.aliasMethod('name')
    });
  
    var goodGuy = App.Person.create()
    ```
  
    @method aliasMethod
    @for Ember
    @param {String} methodName name of the method to alias
    @return {Ember.Descriptor}
  */
  Ember.aliasMethod = function(methodName) {
    return new Alias(methodName);
  };
  
  // ..........................................................
  // OBSERVER HELPER
  //
  
  /**
    @method observer
    @for Ember
    @param {Function} func
    @param {String} propertyNames*
    @return func
  */
  Ember.observer = function(func) {
    var paths = a_slice.call(arguments, 1);
    func.__ember_observes__ = paths;
    return func;
  };
  
  // If observers ever become asynchronous, Ember.immediateObserver
  // must remain synchronous.
  /**
    @method immediateObserver
    @for Ember
    @param {Function} func
    @param {String} propertyNames*
    @return func
  */
  Ember.immediateObserver = function() {
    for (var i=0, l=arguments.length; i<l; i++) {
      var arg = arguments[i];
      Ember.assert("Immediate observers must observe internal properties only, not properties on other objects.", typeof arg !== "string" || arg.indexOf('.') === -1);
    }
  
    return Ember.observer.apply(this, arguments);
  };
  
  /**
    When observers fire, they are called with the arguments `obj`, `keyName`
    and `value`. In a typical observer, value is the new, post-change value.
  
    A `beforeObserver` fires before a property changes. The `value` argument contains
    the pre-change value.
  
    A `beforeObserver` is an alternative form of `.observesBefore()`.
  
    ```javascript
    App.PersonView = Ember.View.extend({
      valueWillChange: function (obj, keyName, value) {
        this.changingFrom = value;
      }.observesBefore('content.value'),
      valueDidChange: function(obj, keyName, value) {
          // only run if updating a value already in the DOM
          if(this.get('state') === 'inDOM') {
              var color = value > this.changingFrom ? 'green' : 'red';
              // logic
          }
      }.observes('content.value')
    });
    ```
  
    @method beforeObserver
    @for Ember
    @param {Function} func
    @param {String} propertyNames*
    @return func
  */
  Ember.beforeObserver = function(func) {
    var paths = a_slice.call(arguments, 1);
    func.__ember_observesBefore__ = paths;
    return func;
  };
  
  })();
  
  
  
  (function() {
  /**
  Ember Metal
  
  @module ember
  @submodule ember-metal
  */
  
  })();
  
  (function() {
  define("rsvp/all",
    ["rsvp/defer","exports"],
    function(__dependency1__, __exports__) {
      "use strict";
      var defer = __dependency1__.defer;
  
      function all(promises) {
        var results = [], deferred = defer(), remaining = promises.length;
  
        if (remaining === 0) {
          deferred.resolve([]);
        }
  
        var resolver = function(index) {
          return function(value) {
            resolveAll(index, value);
          };
        };
  
        var resolveAll = function(index, value) {
          results[index] = value;
          if (--remaining === 0) {
            deferred.resolve(results);
          }
        };
  
        var rejectAll = function(error) {
          deferred.reject(error);
        };
  
        for (var i = 0; i < promises.length; i++) {
          if (promises[i] && typeof promises[i].then === 'function') {
            promises[i].then(resolver(i), rejectAll);
          } else {
            resolveAll(i, promises[i]);
          }
        }
        return deferred.promise;
      }
  
      __exports__.all = all;
    });
  
  define("rsvp/async",
    ["exports"],
    function(__exports__) {
      "use strict";
      var browserGlobal = (typeof window !== 'undefined') ? window : {};
  
      var BrowserMutationObserver = browserGlobal.MutationObserver || browserGlobal.WebKitMutationObserver;
      var async;
  
      if (typeof process !== 'undefined' &&
        {}.toString.call(process) === '[object process]') {
        async = function(callback, binding) {
          process.nextTick(function() {
            callback.call(binding);
          });
        };
      } else if (BrowserMutationObserver) {
        var queue = [];
  
        var observer = new BrowserMutationObserver(function() {
          var toProcess = queue.slice();
          queue = [];
  
          toProcess.forEach(function(tuple) {
            var callback = tuple[0], binding = tuple[1];
            callback.call(binding);
          });
        });
  
        var element = document.createElement('div');
        observer.observe(element, { attributes: true });
  
        // Chrome Memory Leak: https://bugs.webkit.org/show_bug.cgi?id=93661
        window.addEventListener('unload', function(){
          observer.disconnect();
          observer = null;
        });
  
        async = function(callback, binding) {
          queue.push([callback, binding]);
          element.setAttribute('drainQueue', 'drainQueue');
        };
      } else {
        async = function(callback, binding) {
          setTimeout(function() {
            callback.call(binding);
          }, 1);
        };
      }
  
  
      __exports__.async = async;
    });
  
  define("rsvp/config",
    ["rsvp/async","exports"],
    function(__dependency1__, __exports__) {
      "use strict";
      var async = __dependency1__.async;
  
      var config = {};
      config.async = async;
  
      __exports__.config = config;
    });
  
  define("rsvp/defer",
    ["rsvp/promise","exports"],
    function(__dependency1__, __exports__) {
      "use strict";
      var Promise = __dependency1__.Promise;
  
      function defer() {
        var deferred = {};
  
        var promise = new Promise(function(resolve, reject) {
          deferred.resolve = resolve;
          deferred.reject = reject;
        });
  
        deferred.promise = promise;
        return deferred;
      }
  
      __exports__.defer = defer;
    });
  
  define("rsvp/events",
    ["exports"],
    function(__exports__) {
      "use strict";
      var Event = function(type, options) {
        this.type = type;
  
        for (var option in options) {
          if (!options.hasOwnProperty(option)) { continue; }
  
          this[option] = options[option];
        }
      };
  
      var indexOf = function(callbacks, callback) {
        for (var i=0, l=callbacks.length; i<l; i++) {
          if (callbacks[i][0] === callback) { return i; }
        }
  
        return -1;
      };
  
      var callbacksFor = function(object) {
        var callbacks = object._promiseCallbacks;
  
        if (!callbacks) {
          callbacks = object._promiseCallbacks = {};
        }
  
        return callbacks;
      };
  
      var EventTarget = {
        mixin: function(object) {
          object.on = this.on;
          object.off = this.off;
          object.trigger = this.trigger;
          return object;
        },
  
        on: function(eventNames, callback, binding) {
          var allCallbacks = callbacksFor(this), callbacks, eventName;
          eventNames = eventNames.split(/\s+/);
          binding = binding || this;
  
          while (eventName = eventNames.shift()) {
            callbacks = allCallbacks[eventName];
  
            if (!callbacks) {
              callbacks = allCallbacks[eventName] = [];
            }
  
            if (indexOf(callbacks, callback) === -1) {
              callbacks.push([callback, binding]);
            }
          }
        },
  
        off: function(eventNames, callback) {
          var allCallbacks = callbacksFor(this), callbacks, eventName, index;
          eventNames = eventNames.split(/\s+/);
  
          while (eventName = eventNames.shift()) {
            if (!callback) {
              allCallbacks[eventName] = [];
              continue;
            }
  
            callbacks = allCallbacks[eventName];
  
            index = indexOf(callbacks, callback);
  
            if (index !== -1) { callbacks.splice(index, 1); }
          }
        },
  
        trigger: function(eventName, options) {
          var allCallbacks = callbacksFor(this),
              callbacks, callbackTuple, callback, binding, event;
  
          if (callbacks = allCallbacks[eventName]) {
            // Don't cache the callbacks.length since it may grow
            for (var i=0; i<callbacks.length; i++) {
              callbackTuple = callbacks[i];
              callback = callbackTuple[0];
              binding = callbackTuple[1];
  
              if (typeof options !== 'object') {
                options = { detail: options };
              }
  
              event = new Event(eventName, options);
              callback.call(binding, event);
            }
          }
        }
      };
  
  
      __exports__.EventTarget = EventTarget;
    });
  
  define("rsvp/hash",
    ["rsvp/defer","exports"],
    function(__dependency1__, __exports__) {
      "use strict";
      var defer = __dependency1__.defer;
  
      function size(object) {
        var size = 0;
  
        for (var prop in object) {
          size++;
        }
  
        return size;
      }
  
      function hash(promises) {
        var results = {}, deferred = defer(), remaining = size(promises);
  
        if (remaining === 0) {
          deferred.resolve({});
        }
  
        var resolver = function(prop) {
          return function(value) {
            resolveAll(prop, value);
          };
        };
  
        var resolveAll = function(prop, value) {
          results[prop] = value;
          if (--remaining === 0) {
            deferred.resolve(results);
          }
        };
  
        var rejectAll = function(error) {
          deferred.reject(error);
        };
  
        for (var prop in promises) {
          if (promises[prop] && typeof promises[prop].then === 'function') {
            promises[prop].then(resolver(prop), rejectAll);
          } else {
            resolveAll(prop, promises[prop]);
          }
        }
  
        return deferred.promise;
      }
  
      __exports__.hash = hash;
    });
  
  define("rsvp/node",
    ["rsvp/promise","rsvp/all","exports"],
    function(__dependency1__, __dependency2__, __exports__) {
      "use strict";
      var Promise = __dependency1__.Promise;
      var all = __dependency2__.all;
  
      function makeNodeCallbackFor(resolve, reject) {
        return function (error, value) {
          if (error) {
            reject(error);
          } else if (arguments.length > 2) {
            resolve(Array.prototype.slice.call(arguments, 1));
          } else {
            resolve(value);
          }
        };
      }
  
      function denodeify(nodeFunc) {
        return function()  {
          var nodeArgs = Array.prototype.slice.call(arguments), resolve, reject;
  
          var promise = new Promise(function(nodeResolve, nodeReject) {
            resolve = nodeResolve;
            reject = nodeReject;
          });
  
          all(nodeArgs).then(function(nodeArgs) {
            nodeArgs.push(makeNodeCallbackFor(resolve, reject));
  
            try {
              nodeFunc.apply(this, nodeArgs);
            } catch(e) {
              reject(e);
            }
          });
  
          return promise;
        };
      }
  
      __exports__.denodeify = denodeify;
    });
  
  define("rsvp/promise",
    ["rsvp/config","rsvp/events","exports"],
    function(__dependency1__, __dependency2__, __exports__) {
      "use strict";
      var config = __dependency1__.config;
      var EventTarget = __dependency2__.EventTarget;
  
      function objectOrFunction(x) {
        return isFunction(x) || (typeof x === "object" && x !== null);
      }
  
      function isFunction(x){
        return typeof x === "function";
      }
  
      var Promise = function(resolver) {
        var promise = this,
        resolved = false;
  
        if (typeof resolver !== 'function') {
          throw new TypeError('You must pass a resolver function as the sole argument to the promise constructor');
        }
  
        if (!(promise instanceof Promise)) {
          return new Promise(resolver);
        }
  
        var resolvePromise = function(value) {
          if (resolved) { return; }
          resolved = true;
          resolve(promise, value);
        };
  
        var rejectPromise = function(value) {
          if (resolved) { return; }
          resolved = true;
          reject(promise, value);
        };
  
        this.on('promise:resolved', function(event) {
          this.trigger('success', { detail: event.detail });
        }, this);
  
        this.on('promise:failed', function(event) {
          this.trigger('error', { detail: event.detail });
        }, this);
  
        try {
          resolver(resolvePromise, rejectPromise);
        } catch(e) {
          rejectPromise(e);
        }
      };
  
      var invokeCallback = function(type, promise, callback, event) {
        var hasCallback = isFunction(callback),
            value, error, succeeded, failed;
  
        if (hasCallback) {
          try {
            value = callback(event.detail);
            succeeded = true;
          } catch(e) {
            failed = true;
            error = e;
          }
        } else {
          value = event.detail;
          succeeded = true;
        }
  
        if (handleThenable(promise, value)) {
          return;
        } else if (hasCallback && succeeded) {
          resolve(promise, value);
        } else if (failed) {
          reject(promise, error);
        } else if (type === 'resolve') {
          resolve(promise, value);
        } else if (type === 'reject') {
          reject(promise, value);
        }
      };
  
      Promise.prototype = {
        constructor: Promise,
  
        then: function(done, fail) {
          var thenPromise = new Promise(function() {});
  
          if (this.isFulfilled) {
            config.async(function() {
              invokeCallback('resolve', thenPromise, done, { detail: this.fulfillmentValue });
            }, this);
          }
  
          if (this.isRejected) {
            config.async(function() {
              invokeCallback('reject', thenPromise, fail, { detail: this.rejectedReason });
            }, this);
          }
  
          this.on('promise:resolved', function(event) {
            invokeCallback('resolve', thenPromise, done, event);
          });
  
          this.on('promise:failed', function(event) {
            invokeCallback('reject', thenPromise, fail, event);
          });
  
          return thenPromise;
        }
      };
  
      EventTarget.mixin(Promise.prototype);
  
      function resolve(promise, value) {
        if (promise === value) {
          fulfill(promise, value);
        } else if (!handleThenable(promise, value)) {
          fulfill(promise, value);
        }
      }
  
      function handleThenable(promise, value) {
        var then = null;
  
        if (objectOrFunction(value)) {
          try {
            then = value.then;
          } catch(e) {
            reject(promise, e);
            return true;
          }
  
          if (isFunction(then)) {
            try {
              then.call(value, function(val) {
                if (value !== val) {
                  resolve(promise, val);
                } else {
                  fulfill(promise, val);
                }
              }, function(val) {
                reject(promise, val);
              });
            } catch (e) {
              reject(promise, e);
            }
            return true;
          }
        }
  
        return false;
      }
  
      function fulfill(promise, value) {
        config.async(function() {
          promise.trigger('promise:resolved', { detail: value });
          promise.isFulfilled = true;
          promise.fulfillmentValue = value;
        });
      }
  
      function reject(promise, value) {
        config.async(function() {
          promise.trigger('promise:failed', { detail: value });
          promise.isRejected = true;
          promise.rejectedReason = value;
        });
      }
  
  
      __exports__.Promise = Promise;
    });
  
  define("rsvp/reject",
    ["rsvp/promise","exports"],
    function(__dependency1__, __exports__) {
      "use strict";
      var Promise = __dependency1__.Promise;
  
  
      function objectOrFunction(x) {
        return typeof x === "function" || (typeof x === "object" && x !== null);
      }
  
  
      function reject(reason) {
        return new Promise(function (resolve, reject) {
          reject(reason);
        });
      }
  
  
      __exports__.reject = reject;
    });
  
  define("rsvp/resolve",
    ["rsvp/promise","exports"],
    function(__dependency1__, __exports__) {
      "use strict";
      var Promise = __dependency1__.Promise;
  
  
      function objectOrFunction(x) {
        return typeof x === "function" || (typeof x === "object" && x !== null);
      }
  
      function resolve(thenable){
        var promise = new Promise(function(resolve, reject){
          var then;
  
          try {
            if ( objectOrFunction(thenable) ) {
              then = thenable.then;
  
              if (typeof then === "function") {
                then.call(thenable, resolve, reject);
              } else {
                resolve(thenable);
              }
  
            } else {
              resolve(thenable);
            }
  
          } catch(error) {
            reject(error);
          }
        });
  
        return promise;
      }
  
  
      __exports__.resolve = resolve;
    });
  
  define("rsvp",
    ["rsvp/events","rsvp/promise","rsvp/node","rsvp/all","rsvp/hash","rsvp/defer","rsvp/config","rsvp/resolve","rsvp/reject","exports"],
    function(__dependency1__, __dependency2__, __dependency3__, __dependency4__, __dependency5__, __dependency6__, __dependency7__, __dependency8__, __dependency9__, __exports__) {
      "use strict";
      var EventTarget = __dependency1__.EventTarget;
      var Promise = __dependency2__.Promise;
      var denodeify = __dependency3__.denodeify;
      var all = __dependency4__.all;
      var hash = __dependency5__.hash;
      var defer = __dependency6__.defer;
      var config = __dependency7__.config;
      var resolve = __dependency8__.resolve;
      var reject = __dependency9__.reject;
  
      function configure(name, value) {
        config[name] = value;
      }
  
  
      __exports__.Promise = Promise;
      __exports__.EventTarget = EventTarget;
      __exports__.all = all;
      __exports__.hash = hash;
      __exports__.defer = defer;
      __exports__.denodeify = denodeify;
      __exports__.configure = configure;
      __exports__.resolve = resolve;
      __exports__.reject = reject;
    });
  
  
  
  })();
  
  (function() {
  define("container",
    [],
    function() {
  
      function InheritingDict(parent) {
        this.parent = parent;
        this.dict = {};
      }
  
      InheritingDict.prototype = {
        get: function(key) {
          var dict = this.dict;
  
          if (dict.hasOwnProperty(key)) {
            return dict[key];
          }
  
          if (this.parent) {
            return this.parent.get(key);
          }
        },
  
        set: function(key, value) {
          this.dict[key] = value;
        },
  
        has: function(key) {
          var dict = this.dict;
  
          if (dict.hasOwnProperty(key)) {
            return true;
          }
  
          if (this.parent) {
            return this.parent.has(key);
          }
  
          return false;
        },
  
        eachLocal: function(callback, binding) {
          var dict = this.dict;
  
          for (var prop in dict) {
            if (dict.hasOwnProperty(prop)) {
              callback.call(binding, prop, dict[prop]);
            }
          }
        }
      };
  
      function Container(parent) {
        this.parent = parent;
        this.children = [];
  
        this.resolver = parent && parent.resolver || function() {};
        this.registry = new InheritingDict(parent && parent.registry);
        this.cache = new InheritingDict(parent && parent.cache);
        this.typeInjections = new InheritingDict(parent && parent.typeInjections);
        this.injections = {};
        this._options = new InheritingDict(parent && parent._options);
        this._typeOptions = new InheritingDict(parent && parent._typeOptions);
      }
  
      Container.prototype = {
        child: function() {
          var container = new Container(this);
          this.children.push(container);
          return container;
        },
  
        set: function(object, key, value) {
          object[key] = value;
        },
  
        register: function(type, name, factory, options) {
          var fullName;
  
          if (type.indexOf(':') !== -1){
            options = factory;
            factory = name;
            fullName = type;
          } else {
            Ember.deprecate('register("'+type +'", "'+ name+'") is now deprecated in-favour of register("'+type+':'+name+'");', false);
            fullName = type + ":" + name;
          }
  
          var normalizedName = this.normalize(fullName);
  
          this.registry.set(normalizedName, factory);
          this._options.set(normalizedName, options || {});
        },
  
        resolve: function(fullName) {
          return this.resolver(fullName) || this.registry.get(fullName);
        },
  
        normalize: function(fullName) {
          return fullName;
        },
  
        lookup: function(fullName, options) {
          fullName = this.normalize(fullName);
  
          options = options || {};
  
          if (this.cache.has(fullName) && options.singleton !== false) {
            return this.cache.get(fullName);
          }
  
          var value = instantiate(this, fullName);
  
          if (!value) { return; }
  
          if (isSingleton(this, fullName) && options.singleton !== false) {
            this.cache.set(fullName, value);
          }
  
          return value;
        },
  
        lookupFactory: function(fullName) {
          return factoryFor(this, fullName);
        },
  
        has: function(fullName) {
          if (this.cache.has(fullName)) {
            return true;
          }
  
          return !!factoryFor(this, fullName);
        },
  
        optionsForType: function(type, options) {
          if (this.parent) { illegalChildOperation('optionsForType'); }
  
          this._typeOptions.set(type, options);
        },
  
        options: function(type, options) {
          this.optionsForType(type, options);
        },
  
        typeInjection: function(type, property, fullName) {
          if (this.parent) { illegalChildOperation('typeInjection'); }
  
          var injections = this.typeInjections.get(type);
          if (!injections) {
            injections = [];
            this.typeInjections.set(type, injections);
          }
          injections.push({ property: property, fullName: fullName });
        },
  
        injection: function(factoryName, property, injectionName) {
          if (this.parent) { illegalChildOperation('injection'); }
  
          if (factoryName.indexOf(':') === -1) {
            return this.typeInjection(factoryName, property, injectionName);
          }
  
          var injections = this.injections[factoryName] = this.injections[factoryName] || [];
          injections.push({ property: property, fullName: injectionName });
        },
  
        destroy: function() {
          this.isDestroyed = true;
  
          for (var i=0, l=this.children.length; i<l; i++) {
            this.children[i].destroy();
          }
  
          this.children = [];
  
          eachDestroyable(this, function(item) {
            item.destroy();
          });
  
          delete this.parent;
          this.isDestroyed = true;
        },
  
        reset: function() {
          for (var i=0, l=this.children.length; i<l; i++) {
            resetCache(this.children[i]);
          }
          resetCache(this);
        }
      };
  
      function illegalChildOperation(operation) {
        throw new Error(operation + " is not currently supported on child containers");
      }
  
      function isSingleton(container, fullName) {
        var singleton = option(container, fullName, 'singleton');
  
        return singleton !== false;
      }
  
      function buildInjections(container, injections) {
        var hash = {};
  
        if (!injections) { return hash; }
  
        var injection, lookup;
  
        for (var i=0, l=injections.length; i<l; i++) {
          injection = injections[i];
          lookup = container.lookup(injection.fullName);
          hash[injection.property] = lookup;
        }
  
        return hash;
      }
  
      function option(container, fullName, optionName) {
        var options = container._options.get(fullName);
  
        if (options && options[optionName] !== undefined) {
          return options[optionName];
        }
  
        var type = fullName.split(":")[0];
        options = container._typeOptions.get(type);
  
        if (options) {
          return options[optionName];
        }
      }
  
      function factoryFor(container, fullName) {
        var name = container.normalize(fullName);
        return container.resolve(name);
      }
  
      function instantiate(container, fullName) {
        var factory = factoryFor(container, fullName);
  
        var splitName = fullName.split(":"),
            type = splitName[0],
            value;
  
        if (option(container, fullName, 'instantiate') === false) {
          return factory;
        }
  
        if (factory) {
          var injections = [];
          injections = injections.concat(container.typeInjections.get(type) || []);
          injections = injections.concat(container.injections[fullName] || []);
  
          var hash = buildInjections(container, injections);
          hash.container = container;
          hash._debugContainerKey = fullName;
  
          value = factory.create(hash);
  
          return value;
        }
      }
  
      function eachDestroyable(container, callback) {
        container.cache.eachLocal(function(key, value) {
          if (option(container, key, 'instantiate') === false) { return; }
          callback(value);
        });
      }
  
      function resetCache(container) {
        container.cache.eachLocal(function(key, value) {
          if (option(container, key, 'instantiate') === false) { return; }
          value.destroy();
        });
        container.cache.dict = {};
      }
  
      return Container;
  });
  
  })();
  
  (function() {
  /*globals ENV */
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var indexOf = Ember.EnumerableUtils.indexOf;
  
  /**
   This will compare two javascript values of possibly different types.
   It will tell you which one is greater than the other by returning:
  
    - -1 if the first is smaller than the second,
    - 0 if both are equal,
    - 1 if the first is greater than the second.
  
   The order is calculated based on `Ember.ORDER_DEFINITION`, if types are different.
   In case they have the same type an appropriate comparison for this type is made.
  
    ```javascript
    Ember.compare('hello', 'hello');  // 0
    Ember.compare('abc', 'dfg');      // -1
    Ember.compare(2, 1);              // 1
    ```
  
   @method compare
   @for Ember
   @param {Object} v First value to compare
   @param {Object} w Second value to compare
   @return {Number} -1 if v < w, 0 if v = w and 1 if v > w.
  */
  Ember.compare = function compare(v, w) {
    if (v === w) { return 0; }
  
    var type1 = Ember.typeOf(v);
    var type2 = Ember.typeOf(w);
  
    var Comparable = Ember.Comparable;
    if (Comparable) {
      if (type1==='instance' && Comparable.detect(v.constructor)) {
        return v.constructor.compare(v, w);
      }
  
      if (type2 === 'instance' && Comparable.detect(w.constructor)) {
        return 1-w.constructor.compare(w, v);
      }
    }
  
    // If we haven't yet generated a reverse-mapping of Ember.ORDER_DEFINITION,
    // do so now.
    var mapping = Ember.ORDER_DEFINITION_MAPPING;
    if (!mapping) {
      var order = Ember.ORDER_DEFINITION;
      mapping = Ember.ORDER_DEFINITION_MAPPING = {};
      var idx, len;
      for (idx = 0, len = order.length; idx < len;  ++idx) {
        mapping[order[idx]] = idx;
      }
  
      // We no longer need Ember.ORDER_DEFINITION.
      delete Ember.ORDER_DEFINITION;
    }
  
    var type1Index = mapping[type1];
    var type2Index = mapping[type2];
  
    if (type1Index < type2Index) { return -1; }
    if (type1Index > type2Index) { return 1; }
  
    // types are equal - so we have to check values now
    switch (type1) {
      case 'boolean':
      case 'number':
        if (v < w) { return -1; }
        if (v > w) { return 1; }
        return 0;
  
      case 'string':
        var comp = v.localeCompare(w);
        if (comp < 0) { return -1; }
        if (comp > 0) { return 1; }
        return 0;
  
      case 'array':
        var vLen = v.length;
        var wLen = w.length;
        var l = Math.min(vLen, wLen);
        var r = 0;
        var i = 0;
        while (r === 0 && i < l) {
          r = compare(v[i],w[i]);
          i++;
        }
        if (r !== 0) { return r; }
  
        // all elements are equal now
        // shorter array should be ordered first
        if (vLen < wLen) { return -1; }
        if (vLen > wLen) { return 1; }
        // arrays are equal now
        return 0;
  
      case 'instance':
        if (Ember.Comparable && Ember.Comparable.detect(v)) {
          return v.compare(v, w);
        }
        return 0;
  
      case 'date':
        var vNum = v.getTime();
        var wNum = w.getTime();
        if (vNum < wNum) { return -1; }
        if (vNum > wNum) { return 1; }
        return 0;
  
      default:
        return 0;
    }
  };
  
  function _copy(obj, deep, seen, copies) {
    var ret, loc, key;
  
    // primitive data types are immutable, just return them.
    if ('object' !== typeof obj || obj===null) return obj;
  
    // avoid cyclical loops
    if (deep && (loc=indexOf(seen, obj))>=0) return copies[loc];
  
    Ember.assert('Cannot clone an Ember.Object that does not implement Ember.Copyable', !(obj instanceof Ember.Object) || (Ember.Copyable && Ember.Copyable.detect(obj)));
  
    // IMPORTANT: this specific test will detect a native array only. Any other
    // object will need to implement Copyable.
    if (Ember.typeOf(obj) === 'array') {
      ret = obj.slice();
      if (deep) {
        loc = ret.length;
        while(--loc>=0) ret[loc] = _copy(ret[loc], deep, seen, copies);
      }
    } else if (Ember.Copyable && Ember.Copyable.detect(obj)) {
      ret = obj.copy(deep, seen, copies);
    } else {
      ret = {};
      for(key in obj) {
        if (!obj.hasOwnProperty(key)) continue;
  
        // Prevents browsers that don't respect non-enumerability from
        // copying internal Ember properties
        if (key.substring(0,2) === '__') continue;
  
        ret[key] = deep ? _copy(obj[key], deep, seen, copies) : obj[key];
      }
    }
  
    if (deep) {
      seen.push(obj);
      copies.push(ret);
    }
  
    return ret;
  }
  
  /**
    Creates a clone of the passed object. This function can take just about
    any type of object and create a clone of it, including primitive values
    (which are not actually cloned because they are immutable).
  
    If the passed object implements the `clone()` method, then this function
    will simply call that method and return the result.
  
    @method copy
    @for Ember
    @param {Object} obj The object to clone
    @param {Boolean} deep If true, a deep copy of the object is made
    @return {Object} The cloned object
  */
  Ember.copy = function(obj, deep) {
    // fast paths
    if ('object' !== typeof obj || obj===null) return obj; // can't copy primitives
    if (Ember.Copyable && Ember.Copyable.detect(obj)) return obj.copy(deep);
    return _copy(obj, deep, deep ? [] : null, deep ? [] : null);
  };
  
  /**
    Convenience method to inspect an object. This method will attempt to
    convert the object into a useful string description.
  
    It is a pretty simple implementation. If you want something more robust,
    use something like JSDump: https://github.com/NV/jsDump
  
    @method inspect
    @for Ember
    @param {Object} obj The object you want to inspect.
    @return {String} A description of the object
  */
  Ember.inspect = function(obj) {
    if (typeof obj !== 'object' || obj === null) {
      return obj + '';
    }
  
    var v, ret = [];
    for(var key in obj) {
      if (obj.hasOwnProperty(key)) {
        v = obj[key];
        if (v === 'toString') { continue; } // ignore useless items
        if (Ember.typeOf(v) === 'function') { v = "function() { ... }"; }
        ret.push(key + ": " + v);
      }
    }
    return "{" + ret.join(", ") + "}";
  };
  
  /**
    Compares two objects, returning true if they are logically equal. This is
    a deeper comparison than a simple triple equal. For sets it will compare the
    internal objects. For any other object that implements `isEqual()` it will
    respect that method.
  
    ```javascript
    Ember.isEqual('hello', 'hello');  // true
    Ember.isEqual(1, 2);              // false
    Ember.isEqual([4,2], [4,2]);      // false
    ```
  
    @method isEqual
    @for Ember
    @param {Object} a first object to compare
    @param {Object} b second object to compare
    @return {Boolean}
  */
  Ember.isEqual = function(a, b) {
    if (a && 'function'===typeof a.isEqual) return a.isEqual(b);
    return a === b;
  };
  
  // Used by Ember.compare
  Ember.ORDER_DEFINITION = Ember.ENV.ORDER_DEFINITION || [
    'undefined',
    'null',
    'boolean',
    'number',
    'string',
    'array',
    'object',
    'instance',
    'function',
    'class',
    'date'
  ];
  
  /**
    Returns all of the keys defined on an object or hash. This is useful
    when inspecting objects for debugging. On browsers that support it, this
    uses the native `Object.keys` implementation.
  
    @method keys
    @for Ember
    @param {Object} obj
    @return {Array} Array containing keys of obj
  */
  Ember.keys = Object.keys;
  
  if (!Ember.keys || Ember.create.isSimulated) {
    Ember.keys = function(obj) {
      var ret = [];
      for(var key in obj) {
        // Prevents browsers that don't respect non-enumerability from
        // copying internal Ember properties
        if (key.substring(0,2) === '__') continue;
        if (key === '_super') continue;
  
        if (obj.hasOwnProperty(key)) { ret.push(key); }
      }
      return ret;
    };
  }
  
  // ..........................................................
  // ERROR
  //
  
  var errorProps = ['description', 'fileName', 'lineNumber', 'message', 'name', 'number', 'stack'];
  
  /**
    A subclass of the JavaScript Error object for use in Ember.
  
    @class Error
    @namespace Ember
    @extends Error
    @constructor
  */
  Ember.Error = function() {
    var tmp = Error.apply(this, arguments);
  
    // Unfortunately errors are not enumerable in Chrome (at least), so `for prop in tmp` doesn't work.
    for (var idx = 0; idx < errorProps.length; idx++) {
      this[errorProps[idx]] = tmp[errorProps[idx]];
    }
  };
  
  Ember.Error.prototype = Ember.create(Error.prototype);
  
  })();
  
  
  
  (function() {
  /**
    Expose RSVP implementation
  
    @class RSVP
    @namespace Ember
    @constructor
  */
  Ember.RSVP = requireModule('rsvp');
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var STRING_DASHERIZE_REGEXP = (/[ _]/g);
  var STRING_DASHERIZE_CACHE = {};
  var STRING_DECAMELIZE_REGEXP = (/([a-z])([A-Z])/g);
  var STRING_CAMELIZE_REGEXP = (/(\-|_|\.|\s)+(.)?/g);
  var STRING_UNDERSCORE_REGEXP_1 = (/([a-z\d])([A-Z]+)/g);
  var STRING_UNDERSCORE_REGEXP_2 = (/\-|\s+/g);
  
  /**
    Defines the hash of localized strings for the current language. Used by
    the `Ember.String.loc()` helper. To localize, add string values to this
    hash.
  
    @property STRINGS
    @for Ember
    @type Hash
  */
  Ember.STRINGS = {};
  
  /**
    Defines string helper methods including string formatting and localization.
    Unless `Ember.EXTEND_PROTOTYPES.String` is `false` these methods will also be
    added to the `String.prototype` as well.
  
    @class String
    @namespace Ember
    @static
  */
  Ember.String = {
  
    /**
      Apply formatting options to the string. This will look for occurrences
      of "%@" in your string and substitute them with the arguments you pass into
      this method. If you want to control the specific order of replacement,
      you can add a number after the key as well to indicate which argument
      you want to insert.
  
      Ordered insertions are most useful when building loc strings where values
      you need to insert may appear in different orders.
  
      ```javascript
      "Hello %@ %@".fmt('John', 'Doe');     // "Hello John Doe"
      "Hello %@2, %@1".fmt('John', 'Doe');  // "Hello Doe, John"
      ```
  
      @method fmt
      @param {String} str The string to format
      @param {Array} formats An array of parameters to interpolate into string.
      @return {String} formatted string
    */
    fmt: function(str, formats) {
      // first, replace any ORDERED replacements.
      var idx  = 0; // the current index for non-numerical replacements
      return str.replace(/%@([0-9]+)?/g, function(s, argIndex) {
        argIndex = (argIndex) ? parseInt(argIndex,0) - 1 : idx++ ;
        s = formats[argIndex];
        return ((s === null) ? '(null)' : (s === undefined) ? '' : s).toString();
      }) ;
    },
  
    /**
      Formats the passed string, but first looks up the string in the localized
      strings hash. This is a convenient way to localize text. See
      `Ember.String.fmt()` for more information on formatting.
  
      Note that it is traditional but not required to prefix localized string
      keys with an underscore or other character so you can easily identify
      localized strings.
  
      ```javascript
      Ember.STRINGS = {
        '_Hello World': 'Bonjour le monde',
        '_Hello %@ %@': 'Bonjour %@ %@'
      };
  
      Ember.String.loc("_Hello World");  // 'Bonjour le monde';
      Ember.String.loc("_Hello %@ %@", ["John", "Smith"]);  // "Bonjour John Smith";
      ```
  
      @method loc
      @param {String} str The string to format
      @param {Array} formats Optional array of parameters to interpolate into string.
      @return {String} formatted string
    */
    loc: function(str, formats) {
      str = Ember.STRINGS[str] || str;
      return Ember.String.fmt(str, formats) ;
    },
  
    /**
      Splits a string into separate units separated by spaces, eliminating any
      empty strings in the process. This is a convenience method for split that
      is mostly useful when applied to the `String.prototype`.
  
      ```javascript
      Ember.String.w("alpha beta gamma").forEach(function(key) {
        console.log(key);
      });
  
      // > alpha
      // > beta
      // > gamma
      ```
  
      @method w
      @param {String} str The string to split
      @return {String} split string
    */
    w: function(str) { return str.split(/\s+/); },
  
    /**
      Converts a camelized string into all lower case separated by underscores.
  
      ```javascript
      'innerHTML'.decamelize();           // 'inner_html'
      'action_name'.decamelize();        // 'action_name'
      'css-class-name'.decamelize();     // 'css-class-name'
      'my favorite items'.decamelize();  // 'my favorite items'
      ```
  
      @method decamelize
      @param {String} str The string to decamelize.
      @return {String} the decamelized string.
    */
    decamelize: function(str) {
      return str.replace(STRING_DECAMELIZE_REGEXP, '$1_$2').toLowerCase();
    },
  
    /**
      Replaces underscores or spaces with dashes.
  
      ```javascript
      'innerHTML'.dasherize();          // 'inner-html'
      'action_name'.dasherize();        // 'action-name'
      'css-class-name'.dasherize();     // 'css-class-name'
      'my favorite items'.dasherize();  // 'my-favorite-items'
      ```
  
      @method dasherize
      @param {String} str The string to dasherize.
      @return {String} the dasherized string.
    */
    dasherize: function(str) {
      var cache = STRING_DASHERIZE_CACHE,
          hit   = cache.hasOwnProperty(str),
          ret;
  
      if (hit) {
        return cache[str];
      } else {
        ret = Ember.String.decamelize(str).replace(STRING_DASHERIZE_REGEXP,'-');
        cache[str] = ret;
      }
  
      return ret;
    },
  
    /**
      Returns the lowerCamelCase form of a string.
  
      ```javascript
      'innerHTML'.camelize();          // 'innerHTML'
      'action_name'.camelize();        // 'actionName'
      'css-class-name'.camelize();     // 'cssClassName'
      'my favorite items'.camelize();  // 'myFavoriteItems'
      'My Favorite Items'.camelize();  // 'myFavoriteItems'
      ```
  
      @method camelize
      @param {String} str The string to camelize.
      @return {String} the camelized string.
    */
    camelize: function(str) {
      return str.replace(STRING_CAMELIZE_REGEXP, function(match, separator, chr) {
        return chr ? chr.toUpperCase() : '';
      }).replace(/^([A-Z])/, function(match, separator, chr) {
        return match.toLowerCase();
      });
    },
  
    /**
      Returns the UpperCamelCase form of a string.
  
      ```javascript
      'innerHTML'.classify();          // 'InnerHTML'
      'action_name'.classify();        // 'ActionName'
      'css-class-name'.classify();     // 'CssClassName'
      'my favorite items'.classify();  // 'MyFavoriteItems'
      ```
  
      @method classify
      @param {String} str the string to classify
      @return {String} the classified string
    */
    classify: function(str) {
      var parts = str.split("."),
          out = [];
  
      for (var i=0, l=parts.length; i<l; i++) {
        var camelized = Ember.String.camelize(parts[i]);
        out.push(camelized.charAt(0).toUpperCase() + camelized.substr(1));
      }
  
      return out.join(".");
    },
  
    /**
      More general than decamelize. Returns the lower\_case\_and\_underscored
      form of a string.
  
      ```javascript
      'innerHTML'.underscore();          // 'inner_html'
      'action_name'.underscore();        // 'action_name'
      'css-class-name'.underscore();     // 'css_class_name'
      'my favorite items'.underscore();  // 'my_favorite_items'
      ```
  
      @method underscore
      @param {String} str The string to underscore.
      @return {String} the underscored string.
    */
    underscore: function(str) {
      return str.replace(STRING_UNDERSCORE_REGEXP_1, '$1_$2').
        replace(STRING_UNDERSCORE_REGEXP_2, '_').toLowerCase();
    },
  
    /**
      Returns the Capitalized form of a string
  
      ```javascript
      'innerHTML'.capitalize()         // 'InnerHTML'
      'action_name'.capitalize()       // 'Action_name'
      'css-class-name'.capitalize()    // 'Css-class-name'
      'my favorite items'.capitalize() // 'My favorite items'
      ```
  
      @method capitalize
      @param {String} str The string to capitalize.
      @return {String} The capitalized string.
    */
    capitalize: function(str) {
      return str.charAt(0).toUpperCase() + str.substr(1);
    }
  
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  
  
  var fmt = Ember.String.fmt,
      w   = Ember.String.w,
      loc = Ember.String.loc,
      camelize = Ember.String.camelize,
      decamelize = Ember.String.decamelize,
      dasherize = Ember.String.dasherize,
      underscore = Ember.String.underscore,
      capitalize = Ember.String.capitalize,
      classify = Ember.String.classify;
  
  if (Ember.EXTEND_PROTOTYPES === true || Ember.EXTEND_PROTOTYPES.String) {
  
    /**
      See `Ember.String.fmt`.
  
      @method fmt
      @for String
    */
    String.prototype.fmt = function() {
      return fmt(this, arguments);
    };
  
    /**
      See `Ember.String.w`.
  
      @method w
      @for String
    */
    String.prototype.w = function() {
      return w(this);
    };
  
    /**
      See `Ember.String.loc`.
  
      @method loc
      @for String
    */
    String.prototype.loc = function() {
      return loc(this, arguments);
    };
  
    /**
      See `Ember.String.camelize`.
  
      @method camelize
      @for String
    */
    String.prototype.camelize = function() {
      return camelize(this);
    };
  
    /**
      See `Ember.String.decamelize`.
  
      @method decamelize
      @for String
    */
    String.prototype.decamelize = function() {
      return decamelize(this);
    };
  
    /**
      See `Ember.String.dasherize`.
  
      @method dasherize
      @for String
    */
    String.prototype.dasherize = function() {
      return dasherize(this);
    };
  
    /**
      See `Ember.String.underscore`.
  
      @method underscore
      @for String
    */
    String.prototype.underscore = function() {
      return underscore(this);
    };
  
    /**
      See `Ember.String.classify`.
  
      @method classify
      @for String
    */
    String.prototype.classify = function() {
      return classify(this);
    };
  
    /**
      See `Ember.String.capitalize`.
  
      @method capitalize
      @for String
    */
    String.prototype.capitalize = function() {
      return capitalize(this);
    };
  
  }
  
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var a_slice = Array.prototype.slice;
  
  if (Ember.EXTEND_PROTOTYPES === true || Ember.EXTEND_PROTOTYPES.Function) {
  
    /**
      The `property` extension of Javascript's Function prototype is available
      when `Ember.EXTEND_PROTOTYPES` or `Ember.EXTEND_PROTOTYPES.Function` is
      `true`, which is the default.
  
      Computed properties allow you to treat a function like a property:
  
      ```javascript
      MyApp.president = Ember.Object.create({
        firstName: "Barack",
        lastName: "Obama",
  
        fullName: function() {
          return this.get('firstName') + ' ' + this.get('lastName');
  
          // Call this flag to mark the function as a property
        }.property()
      });
  
      MyApp.president.get('fullName');    // "Barack Obama"
      ```
  
      Treating a function like a property is useful because they can work with
      bindings, just like any other property.
  
      Many computed properties have dependencies on other properties. For
      example, in the above example, the `fullName` property depends on
      `firstName` and `lastName` to determine its value. You can tell Ember
      about these dependencies like this:
  
      ```javascript
      MyApp.president = Ember.Object.create({
        firstName: "Barack",
        lastName: "Obama",
  
        fullName: function() {
          return this.get('firstName') + ' ' + this.get('lastName');
  
          // Tell Ember.js that this computed property depends on firstName
          // and lastName
        }.property('firstName', 'lastName')
      });
      ```
  
      Make sure you list these dependencies so Ember knows when to update
      bindings that connect to a computed property. Changing a dependency
      will not immediately trigger an update of the computed property, but
      will instead clear the cache so that it is updated when the next `get`
      is called on the property.
  
      See `Ember.ComputedProperty`, `Ember.computed`.
  
      @method property
      @for Function
    */
    Function.prototype.property = function() {
      var ret = Ember.computed(this);
      return ret.property.apply(ret, arguments);
    };
  
    /**
      The `observes` extension of Javascript's Function prototype is available
      when `Ember.EXTEND_PROTOTYPES` or `Ember.EXTEND_PROTOTYPES.Function` is
      true, which is the default.
  
      You can observe property changes simply by adding the `observes`
      call to the end of your method declarations in classes that you write.
      For example:
  
      ```javascript
      Ember.Object.create({
        valueObserver: function() {
          // Executes whenever the "value" property changes
        }.observes('value')
      });
      ```
  
      See `Ember.Observable.observes`.
  
      @method observes
      @for Function
    */
    Function.prototype.observes = function() {
      this.__ember_observes__ = a_slice.call(arguments);
      return this;
    };
  
    /**
      The `observesBefore` extension of Javascript's Function prototype is
      available when `Ember.EXTEND_PROTOTYPES` or
      `Ember.EXTEND_PROTOTYPES.Function` is true, which is the default.
  
      You can get notified when a property changes is about to happen by
      by adding the `observesBefore` call to the end of your method
      declarations in classes that you write. For example:
  
      ```javascript
      Ember.Object.create({
        valueObserver: function() {
          // Executes whenever the "value" property is about to change
        }.observesBefore('value')
      });
      ```
  
      See `Ember.Observable.observesBefore`.
  
      @method observesBefore
      @for Function
    */
    Function.prototype.observesBefore = function() {
      this.__ember_observesBefore__ = a_slice.call(arguments);
      return this;
    };
  
  }
  
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  // ..........................................................
  // HELPERS
  //
  
  var get = Ember.get, set = Ember.set;
  var a_slice = Array.prototype.slice;
  var a_indexOf = Ember.EnumerableUtils.indexOf;
  
  var contexts = [];
  
  function popCtx() {
    return contexts.length===0 ? {} : contexts.pop();
  }
  
  function pushCtx(ctx) {
    contexts.push(ctx);
    return null;
  }
  
  function iter(key, value) {
    var valueProvided = arguments.length === 2;
  
    function i(item) {
      var cur = get(item, key);
      return valueProvided ? value===cur : !!cur;
    }
    return i ;
  }
  
  /**
    This mixin defines the common interface implemented by enumerable objects
    in Ember. Most of these methods follow the standard Array iteration
    API defined up to JavaScript 1.8 (excluding language-specific features that
    cannot be emulated in older versions of JavaScript).
  
    This mixin is applied automatically to the Array class on page load, so you
    can use any of these methods on simple arrays. If Array already implements
    one of these methods, the mixin will not override them.
  
    ## Writing Your Own Enumerable
  
    To make your own custom class enumerable, you need two items:
  
    1. You must have a length property. This property should change whenever
       the number of items in your enumerable object changes. If you using this
       with an `Ember.Object` subclass, you should be sure to change the length
       property using `set().`
  
    2. If you must implement `nextObject().` See documentation.
  
    Once you have these two methods implement, apply the `Ember.Enumerable` mixin
    to your class and you will be able to enumerate the contents of your object
    like any other collection.
  
    ## Using Ember Enumeration with Other Libraries
  
    Many other libraries provide some kind of iterator or enumeration like
    facility. This is often where the most common API conflicts occur.
    Ember's API is designed to be as friendly as possible with other
    libraries by implementing only methods that mostly correspond to the
    JavaScript 1.8 API.
  
    @class Enumerable
    @namespace Ember
    @extends Ember.Mixin
    @since Ember 0.9
  */
  Ember.Enumerable = Ember.Mixin.create({
  
    // compatibility
    isEnumerable: true,
  
    /**
      Implement this method to make your class enumerable.
  
      This method will be call repeatedly during enumeration. The index value
      will always begin with 0 and increment monotonically. You don't have to
      rely on the index value to determine what object to return, but you should
      always check the value and start from the beginning when you see the
      requested index is 0.
  
      The `previousObject` is the object that was returned from the last call
      to `nextObject` for the current iteration. This is a useful way to
      manage iteration if you are tracing a linked list, for example.
  
      Finally the context parameter will always contain a hash you can use as
      a "scratchpad" to maintain any other state you need in order to iterate
      properly. The context object is reused and is not reset between
      iterations so make sure you setup the context with a fresh state whenever
      the index parameter is 0.
  
      Generally iterators will continue to call `nextObject` until the index
      reaches the your current length-1. If you run out of data before this
      time for some reason, you should simply return undefined.
  
      The default implementation of this method simply looks up the index.
      This works great on any Array-like objects.
  
      @method nextObject
      @param {Number} index the current index of the iteration
      @param {Object} previousObject the value returned by the last call to
        `nextObject`.
      @param {Object} context a context object you can use to maintain state.
      @return {Object} the next object in the iteration or undefined
    */
    nextObject: Ember.required(Function),
  
    /**
      Helper method returns the first object from a collection. This is usually
      used by bindings and other parts of the framework to extract a single
      object if the enumerable contains only one item.
  
      If you override this method, you should implement it so that it will
      always return the same value each time it is called. If your enumerable
      contains only one object, this method should always return that object.
      If your enumerable is empty, this method should return `undefined`.
  
      ```javascript
      var arr = ["a", "b", "c"];
      arr.get('firstObject');  // "a"
  
      var arr = [];
      arr.get('firstObject');  // undefined
      ```
  
      @property firstObject
      @return {Object} the object or undefined
    */
    firstObject: Ember.computed(function() {
      if (get(this, 'length')===0) return undefined ;
  
      // handle generic enumerables
      var context = popCtx(), ret;
      ret = this.nextObject(0, null, context);
      pushCtx(context);
      return ret ;
    }).property('[]'),
  
    /**
      Helper method returns the last object from a collection. If your enumerable
      contains only one object, this method should always return that object.
      If your enumerable is empty, this method should return `undefined`.
  
      ```javascript
      var arr = ["a", "b", "c"];
      arr.get('lastObject');  // "c"
  
      var arr = [];
      arr.get('lastObject');  // undefined
      ```
  
      @property lastObject
      @return {Object} the last object or undefined
    */
    lastObject: Ember.computed(function() {
      var len = get(this, 'length');
      if (len===0) return undefined ;
      var context = popCtx(), idx=0, cur, last = null;
      do {
        last = cur;
        cur = this.nextObject(idx++, last, context);
      } while (cur !== undefined);
      pushCtx(context);
      return last;
    }).property('[]'),
  
    /**
      Returns `true` if the passed object can be found in the receiver. The
      default version will iterate through the enumerable until the object
      is found. You may want to override this with a more efficient version.
  
      ```javascript
      var arr = ["a", "b", "c"];
      arr.contains("a"); // true
      arr.contains("z"); // false
      ```
  
      @method contains
      @param {Object} obj The object to search for.
      @return {Boolean} `true` if object is found in enumerable.
    */
    contains: function(obj) {
      return this.find(function(item) { return item===obj; }) !== undefined;
    },
  
    /**
      Iterates through the enumerable, calling the passed function on each
      item. This method corresponds to the `forEach()` method defined in
      JavaScript 1.6.
  
      The callback method you provide should have the following signature (all
      parameters are optional):
  
      ```javascript
      function(item, index, enumerable);
      ```
  
      - `item` is the current item in the iteration.
      - `index` is the current index in the iteration.
      - `enumerable` is the enumerable object itself.
  
      Note that in addition to a callback, you can also pass an optional target
      object that will be set as `this` on the context. This is a good way
      to give your iterator function access to the current object.
  
      @method forEach
      @param {Function} callback The callback to execute
      @param {Object} [target] The target object to use
      @return {Object} receiver
    */
    forEach: function(callback, target) {
      if (typeof callback !== "function") throw new TypeError() ;
      var len = get(this, 'length'), last = null, context = popCtx();
  
      if (target === undefined) target = null;
  
      for(var idx=0;idx<len;idx++) {
        var next = this.nextObject(idx, last, context) ;
        callback.call(target, next, idx, this);
        last = next ;
      }
      last = null ;
      context = pushCtx(context);
      return this ;
    },
  
    /**
      Alias for `mapProperty`
  
      @method getEach
      @param {String} key name of the property
      @return {Array} The mapped array.
    */
    getEach: function(key) {
      return this.mapProperty(key);
    },
  
    /**
      Sets the value on the named property for each member. This is more
      efficient than using other methods defined on this helper. If the object
      implements Ember.Observable, the value will be changed to `set(),` otherwise
      it will be set directly. `null` objects are skipped.
  
      @method setEach
      @param {String} key The key to set
      @param {Object} value The object to set
      @return {Object} receiver
    */
    setEach: function(key, value) {
      return this.forEach(function(item) {
        set(item, key, value);
      });
    },
  
    /**
      Maps all of the items in the enumeration to another value, returning
      a new array. This method corresponds to `map()` defined in JavaScript 1.6.
  
      The callback method you provide should have the following signature (all
      parameters are optional):
  
      ```javascript
      function(item, index, enumerable);
      ```
  
      - `item` is the current item in the iteration.
      - `index` is the current index in the iteration.
      - `enumerable` is the enumerable object itself.
  
      It should return the mapped value.
  
      Note that in addition to a callback, you can also pass an optional target
      object that will be set as `this` on the context. This is a good way
      to give your iterator function access to the current object.
  
      @method map
      @param {Function} callback The callback to execute
      @param {Object} [target] The target object to use
      @return {Array} The mapped array.
    */
    map: function(callback, target) {
      var ret = Ember.A([]);
      this.forEach(function(x, idx, i) {
        ret[idx] = callback.call(target, x, idx,i);
      });
      return ret ;
    },
  
    /**
      Similar to map, this specialized function returns the value of the named
      property on all items in the enumeration.
  
      @method mapProperty
      @param {String} key name of the property
      @return {Array} The mapped array.
    */
    mapProperty: function(key) {
      return this.map(function(next) {
        return get(next, key);
      });
    },
  
    /**
      Returns an array with all of the items in the enumeration that the passed
      function returns true for. This method corresponds to `filter()` defined in
      JavaScript 1.6.
  
      The callback method you provide should have the following signature (all
      parameters are optional):
  
      ```javascript
      function(item, index, enumerable);
      ```
  
      - `item` is the current item in the iteration.
      - `index` is the current index in the iteration.
      - `enumerable` is the enumerable object itself.
  
      It should return the `true` to include the item in the results, `false`
      otherwise.
  
      Note that in addition to a callback, you can also pass an optional target
      object that will be set as `this` on the context. This is a good way
      to give your iterator function access to the current object.
  
      @method filter
      @param {Function} callback The callback to execute
      @param {Object} [target] The target object to use
      @return {Array} A filtered array.
    */
    filter: function(callback, target) {
      var ret = Ember.A([]);
      this.forEach(function(x, idx, i) {
        if (callback.call(target, x, idx, i)) ret.push(x);
      });
      return ret ;
    },
  
    /**
      Returns an array with all of the items in the enumeration where the passed
      function returns false for. This method is the inverse of filter().
  
      The callback method you provide should have the following signature (all
      parameters are optional):
  
            function(item, index, enumerable);
  
      - *item* is the current item in the iteration.
      - *index* is the current index in the iteration
      - *enumerable* is the enumerable object itself.
  
      It should return the a falsey value to include the item in the results.
  
      Note that in addition to a callback, you can also pass an optional target
      object that will be set as "this" on the context. This is a good way
      to give your iterator function access to the current object.
  
      @method reject
      @param {Function} callback The callback to execute
      @param {Object} [target] The target object to use
      @return {Array} A rejected array.
     */
    reject: function(callback, target) {
      return this.filter(function() {
        return !(callback.apply(target, arguments));
      });
    },
  
    /**
      Returns an array with just the items with the matched property. You
      can pass an optional second argument with the target value. Otherwise
      this will match any property that evaluates to `true`.
  
      @method filterProperty
      @param {String} key the property to test
      @param {String} [value] optional value to test against.
      @return {Array} filtered array
    */
    filterProperty: function(key, value) {
      return this.filter(iter.apply(this, arguments));
    },
  
    /**
      Returns an array with the items that do not have truthy values for
      key.  You can pass an optional second argument with the target value.  Otherwise
      this will match any property that evaluates to false.
  
      @method rejectProperty
      @param {String} key the property to test
      @param {String} [value] optional value to test against.
      @return {Array} rejected array
    */
    rejectProperty: function(key, value) {
      var exactValue = function(item) { return get(item, key) === value; },
          hasValue = function(item) { return !!get(item, key); },
          use = (arguments.length === 2 ? exactValue : hasValue);
  
      return this.reject(use);
    },
  
    /**
      Returns the first item in the array for which the callback returns true.
      This method works similar to the `filter()` method defined in JavaScript 1.6
      except that it will stop working on the array once a match is found.
  
      The callback method you provide should have the following signature (all
      parameters are optional):
  
      ```javascript
      function(item, index, enumerable);
      ```
  
      - `item` is the current item in the iteration.
      - `index` is the current index in the iteration.
      - `enumerable` is the enumerable object itself.
  
      It should return the `true` to include the item in the results, `false`
      otherwise.
  
      Note that in addition to a callback, you can also pass an optional target
      object that will be set as `this` on the context. This is a good way
      to give your iterator function access to the current object.
  
      @method find
      @param {Function} callback The callback to execute
      @param {Object} [target] The target object to use
      @return {Object} Found item or `undefined`.
    */
    find: function(callback, target) {
      var len = get(this, 'length') ;
      if (target === undefined) target = null;
  
      var last = null, next, found = false, ret ;
      var context = popCtx();
      for(var idx=0;idx<len && !found;idx++) {
        next = this.nextObject(idx, last, context) ;
        if (found = callback.call(target, next, idx, this)) ret = next ;
        last = next ;
      }
      next = last = null ;
      context = pushCtx(context);
      return ret ;
    },
  
    /**
      Returns the first item with a property matching the passed value. You
      can pass an optional second argument with the target value. Otherwise
      this will match any property that evaluates to `true`.
  
      This method works much like the more generic `find()` method.
  
      @method findProperty
      @param {String} key the property to test
      @param {String} [value] optional value to test against.
      @return {Object} found item or `undefined`
    */
    findProperty: function(key, value) {
      return this.find(iter.apply(this, arguments));
    },
  
    /**
      Returns `true` if the passed function returns true for every item in the
      enumeration. This corresponds with the `every()` method in JavaScript 1.6.
  
      The callback method you provide should have the following signature (all
      parameters are optional):
  
      ```javascript
      function(item, index, enumerable);
      ```
  
      - `item` is the current item in the iteration.
      - `index` is the current index in the iteration.
      - `enumerable` is the enumerable object itself.
  
      It should return the `true` or `false`.
  
      Note that in addition to a callback, you can also pass an optional target
      object that will be set as `this` on the context. This is a good way
      to give your iterator function access to the current object.
  
      Example Usage:
  
      ```javascript
      if (people.every(isEngineer)) { Paychecks.addBigBonus(); }
      ```
  
      @method every
      @param {Function} callback The callback to execute
      @param {Object} [target] The target object to use
      @return {Boolean}
    */
    every: function(callback, target) {
      return !this.find(function(x, idx, i) {
        return !callback.call(target, x, idx, i);
      });
    },
  
    /**
      Returns `true` if the passed property resolves to `true` for all items in
      the enumerable. This method is often simpler/faster than using a callback.
  
      @method everyProperty
      @param {String} key the property to test
      @param {String} [value] optional value to test against.
      @return {Boolean}
    */
    everyProperty: function(key, value) {
      return this.every(iter.apply(this, arguments));
    },
  
  
    /**
      Returns `true` if the passed function returns true for any item in the
      enumeration. This corresponds with the `some()` method in JavaScript 1.6.
  
      The callback method you provide should have the following signature (all
      parameters are optional):
  
      ```javascript
      function(item, index, enumerable);
      ```
  
      - `item` is the current item in the iteration.
      - `index` is the current index in the iteration.
      - `enumerable` is the enumerable object itself.
  
      It should return the `true` to include the item in the results, `false`
      otherwise.
  
      Note that in addition to a callback, you can also pass an optional target
      object that will be set as `this` on the context. This is a good way
      to give your iterator function access to the current object.
  
      Usage Example:
  
      ```javascript
      if (people.some(isManager)) { Paychecks.addBiggerBonus(); }
      ```
  
      @method some
      @param {Function} callback The callback to execute
      @param {Object} [target] The target object to use
      @return {Array} A filtered array.
    */
    some: function(callback, target) {
      return !!this.find(function(x, idx, i) {
        return !!callback.call(target, x, idx, i);
      });
    },
  
    /**
      Returns `true` if the passed property resolves to `true` for any item in
      the enumerable. This method is often simpler/faster than using a callback.
  
      @method someProperty
      @param {String} key the property to test
      @param {String} [value] optional value to test against.
      @return {Boolean} `true`
    */
    someProperty: function(key, value) {
      return this.some(iter.apply(this, arguments));
    },
  
    /**
      This will combine the values of the enumerator into a single value. It
      is a useful way to collect a summary value from an enumeration. This
      corresponds to the `reduce()` method defined in JavaScript 1.8.
  
      The callback method you provide should have the following signature (all
      parameters are optional):
  
      ```javascript
      function(previousValue, item, index, enumerable);
      ```
  
      - `previousValue` is the value returned by the last call to the iterator.
      - `item` is the current item in the iteration.
      - `index` is the current index in the iteration.
      - `enumerable` is the enumerable object itself.
  
      Return the new cumulative value.
  
      In addition to the callback you can also pass an `initialValue`. An error
      will be raised if you do not pass an initial value and the enumerator is
      empty.
  
      Note that unlike the other methods, this method does not allow you to
      pass a target object to set as this for the callback. It's part of the
      spec. Sorry.
  
      @method reduce
      @param {Function} callback The callback to execute
      @param {Object} initialValue Initial value for the reduce
      @param {String} reducerProperty internal use only.
      @return {Object} The reduced value.
    */
    reduce: function(callback, initialValue, reducerProperty) {
      if (typeof callback !== "function") { throw new TypeError(); }
  
      var ret = initialValue;
  
      this.forEach(function(item, i) {
        ret = callback.call(null, ret, item, i, this, reducerProperty);
      }, this);
  
      return ret;
    },
  
    /**
      Invokes the named method on every object in the receiver that
      implements it. This method corresponds to the implementation in
      Prototype 1.6.
  
      @method invoke
      @param {String} methodName the name of the method
      @param {Object...} args optional arguments to pass as well.
      @return {Array} return values from calling invoke.
    */
    invoke: function(methodName) {
      var args, ret = Ember.A([]);
      if (arguments.length>1) args = a_slice.call(arguments, 1);
  
      this.forEach(function(x, idx) {
        var method = x && x[methodName];
        if ('function' === typeof method) {
          ret[idx] = args ? method.apply(x, args) : method.call(x);
        }
      }, this);
  
      return ret;
    },
  
    /**
      Simply converts the enumerable into a genuine array. The order is not
      guaranteed. Corresponds to the method implemented by Prototype.
  
      @method toArray
      @return {Array} the enumerable as an array.
    */
    toArray: function() {
      var ret = Ember.A([]);
      this.forEach(function(o, idx) { ret[idx] = o; });
      return ret ;
    },
  
    /**
      Returns a copy of the array with all null and undefined elements removed.
  
      ```javascript
      var arr = ["a", null, "c", undefined];
      arr.compact();  // ["a", "c"]
      ```
  
      @method compact
      @return {Array} the array without null and undefined elements.
    */
    compact: function() {
      return this.filter(function(value) { return value != null; });
    },
  
    /**
      Returns a new enumerable that excludes the passed value. The default
      implementation returns an array regardless of the receiver type unless
      the receiver does not contain the value.
  
      ```javascript
      var arr = ["a", "b", "a", "c"];
      arr.without("a");  // ["b", "c"]
      ```
  
      @method without
      @param {Object} value
      @return {Ember.Enumerable}
    */
    without: function(value) {
      if (!this.contains(value)) return this; // nothing to do
      var ret = Ember.A([]);
      this.forEach(function(k) {
        if (k !== value) ret[ret.length] = k;
      }) ;
      return ret ;
    },
  
    /**
      Returns a new enumerable that contains only unique values. The default
      implementation returns an array regardless of the receiver type.
  
      ```javascript
      var arr = ["a", "a", "b", "b"];
      arr.uniq();  // ["a", "b"]
      ```
  
      @method uniq
      @return {Ember.Enumerable}
    */
    uniq: function() {
      var ret = Ember.A([]);
      this.forEach(function(k){
        if (a_indexOf(ret, k)<0) ret.push(k);
      });
      return ret;
    },
  
    /**
      This property will trigger anytime the enumerable's content changes.
      You can observe this property to be notified of changes to the enumerables
      content.
  
      For plain enumerables, this property is read only. `Ember.Array` overrides
      this method.
  
      @property []
      @type Ember.Array
      @return this
    */
    '[]': Ember.computed(function(key, value) {
      return this;
    }),
  
    // ..........................................................
    // ENUMERABLE OBSERVERS
    //
  
    /**
      Registers an enumerable observer. Must implement `Ember.EnumerableObserver`
      mixin.
  
      @method addEnumerableObserver
      @param {Object} target
      @param {Hash} [opts]
      @return this
    */
    addEnumerableObserver: function(target, opts) {
      var willChange = (opts && opts.willChange) || 'enumerableWillChange',
          didChange  = (opts && opts.didChange) || 'enumerableDidChange';
  
      var hasObservers = get(this, 'hasEnumerableObservers');
      if (!hasObservers) Ember.propertyWillChange(this, 'hasEnumerableObservers');
      Ember.addListener(this, '@enumerable:before', target, willChange);
      Ember.addListener(this, '@enumerable:change', target, didChange);
      if (!hasObservers) Ember.propertyDidChange(this, 'hasEnumerableObservers');
      return this;
    },
  
    /**
      Removes a registered enumerable observer.
  
      @method removeEnumerableObserver
      @param {Object} target
      @param {Hash} [opts]
      @return this
    */
    removeEnumerableObserver: function(target, opts) {
      var willChange = (opts && opts.willChange) || 'enumerableWillChange',
          didChange  = (opts && opts.didChange) || 'enumerableDidChange';
  
      var hasObservers = get(this, 'hasEnumerableObservers');
      if (hasObservers) Ember.propertyWillChange(this, 'hasEnumerableObservers');
      Ember.removeListener(this, '@enumerable:before', target, willChange);
      Ember.removeListener(this, '@enumerable:change', target, didChange);
      if (hasObservers) Ember.propertyDidChange(this, 'hasEnumerableObservers');
      return this;
    },
  
    /**
      Becomes true whenever the array currently has observers watching changes
      on the array.
  
      @property hasEnumerableObservers
      @type Boolean
    */
    hasEnumerableObservers: Ember.computed(function() {
      return Ember.hasListeners(this, '@enumerable:change') || Ember.hasListeners(this, '@enumerable:before');
    }),
  
  
    /**
      Invoke this method just before the contents of your enumerable will
      change. You can either omit the parameters completely or pass the objects
      to be removed or added if available or just a count.
  
      @method enumerableContentWillChange
      @param {Ember.Enumerable|Number} removing An enumerable of the objects to
        be removed or the number of items to be removed.
      @param {Ember.Enumerable|Number} adding An enumerable of the objects to be
        added or the number of items to be added.
      @chainable
    */
    enumerableContentWillChange: function(removing, adding) {
  
      var removeCnt, addCnt, hasDelta;
  
      if ('number' === typeof removing) removeCnt = removing;
      else if (removing) removeCnt = get(removing, 'length');
      else removeCnt = removing = -1;
  
      if ('number' === typeof adding) addCnt = adding;
      else if (adding) addCnt = get(adding,'length');
      else addCnt = adding = -1;
  
      hasDelta = addCnt<0 || removeCnt<0 || addCnt-removeCnt!==0;
  
      if (removing === -1) removing = null;
      if (adding   === -1) adding   = null;
  
      Ember.propertyWillChange(this, '[]');
      if (hasDelta) Ember.propertyWillChange(this, 'length');
      Ember.sendEvent(this, '@enumerable:before', [this, removing, adding]);
  
      return this;
    },
  
    /**
      Invoke this method when the contents of your enumerable has changed.
      This will notify any observers watching for content changes. If your are
      implementing an ordered enumerable (such as an array), also pass the
      start and end values where the content changed so that it can be used to
      notify range observers.
  
      @method enumerableContentDidChange
      @param {Number} [start] optional start offset for the content change.
        For unordered enumerables, you should always pass -1.
      @param {Ember.Enumerable|Number} removing An enumerable of the objects to
        be removed or the number of items to be removed.
      @param {Ember.Enumerable|Number} adding  An enumerable of the objects to
        be added or the number of items to be added.
      @chainable
    */
    enumerableContentDidChange: function(removing, adding) {
      var removeCnt, addCnt, hasDelta;
  
      if ('number' === typeof removing) removeCnt = removing;
      else if (removing) removeCnt = get(removing, 'length');
      else removeCnt = removing = -1;
  
      if ('number' === typeof adding) addCnt = adding;
      else if (adding) addCnt = get(adding, 'length');
      else addCnt = adding = -1;
  
      hasDelta = addCnt<0 || removeCnt<0 || addCnt-removeCnt!==0;
  
      if (removing === -1) removing = null;
      if (adding   === -1) adding   = null;
  
      Ember.sendEvent(this, '@enumerable:change', [this, removing, adding]);
      if (hasDelta) Ember.propertyDidChange(this, 'length');
      Ember.propertyDidChange(this, '[]');
  
      return this ;
    }
  
  }) ;
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  // ..........................................................
  // HELPERS
  //
  
  var get = Ember.get, set = Ember.set, isNone = Ember.isNone, map = Ember.EnumerableUtils.map, cacheFor = Ember.cacheFor;
  
  // ..........................................................
  // ARRAY
  //
  /**
    This module implements Observer-friendly Array-like behavior. This mixin is
    picked up by the Array class as well as other controllers, etc. that want to
    appear to be arrays.
  
    Unlike `Ember.Enumerable,` this mixin defines methods specifically for
    collections that provide index-ordered access to their contents. When you
    are designing code that needs to accept any kind of Array-like object, you
    should use these methods instead of Array primitives because these will
    properly notify observers of changes to the array.
  
    Although these methods are efficient, they do add a layer of indirection to
    your application so it is a good idea to use them only when you need the
    flexibility of using both true JavaScript arrays and "virtual" arrays such
    as controllers and collections.
  
    You can use the methods defined in this module to access and modify array
    contents in a KVO-friendly way. You can also be notified whenever the
    membership of an array changes by changing the syntax of the property to
    `.observes('*myProperty.[]')`.
  
    To support `Ember.Array` in your own class, you must override two
    primitives to use it: `replace()` and `objectAt()`.
  
    Note that the Ember.Array mixin also incorporates the `Ember.Enumerable`
    mixin. All `Ember.Array`-like objects are also enumerable.
  
    @class Array
    @namespace Ember
    @extends Ember.Mixin
    @uses Ember.Enumerable
    @since Ember 0.9.0
  */
  Ember.Array = Ember.Mixin.create(Ember.Enumerable, /** @scope Ember.Array.prototype */ {
  
    /**
      Your array must support the `length` property. Your replace methods should
      set this property whenever it changes.
  
      @property {Number} length
    */
    length: Ember.required(),
  
    /**
      Returns the object at the given `index`. If the given `index` is negative
      or is greater or equal than the array length, returns `undefined`.
  
      This is one of the primitives you must implement to support `Ember.Array`.
      If your object supports retrieving the value of an array item using `get()`
      (i.e. `myArray.get(0)`), then you do not need to implement this method
      yourself.
  
      ```javascript
      var arr = ['a', 'b', 'c', 'd'];
      arr.objectAt(0);   // "a"
      arr.objectAt(3);   // "d"
      arr.objectAt(-1);  // undefined
      arr.objectAt(4);   // undefined
      arr.objectAt(5);   // undefined
      ```
  
      @method objectAt
      @param {Number} idx The index of the item to return.
      @return {*} item at index or undefined
    */
    objectAt: function(idx) {
      if ((idx < 0) || (idx>=get(this, 'length'))) return undefined ;
      return get(this, idx);
    },
  
    /**
      This returns the objects at the specified indexes, using `objectAt`.
  
      ```javascript
      var arr =Â ['a', 'b', 'c', 'd'];
      arr.objectsAt([0, 1, 2]);  // ["a", "b", "c"]
      arr.objectsAt([2, 3, 4]);  // ["c", "d", undefined]
      ```
  
      @method objectsAt
      @param {Array} indexes An array of indexes of items to return.
      @return {Array}
     */
    objectsAt: function(indexes) {
      var self = this;
      return map(indexes, function(idx){ return self.objectAt(idx); });
    },
  
    // overrides Ember.Enumerable version
    nextObject: function(idx) {
      return this.objectAt(idx);
    },
  
    /**
      This is the handler for the special array content property. If you get
      this property, it will return this. If you set this property it a new
      array, it will replace the current content.
  
      This property overrides the default property defined in `Ember.Enumerable`.
  
      @property []
      @return this
    */
    '[]': Ember.computed(function(key, value) {
      if (value !== undefined) this.replace(0, get(this, 'length'), value) ;
      return this ;
    }),
  
    firstObject: Ember.computed(function() {
      return this.objectAt(0);
    }),
  
    lastObject: Ember.computed(function() {
      return this.objectAt(get(this, 'length')-1);
    }),
  
    // optimized version from Enumerable
    contains: function(obj){
      return this.indexOf(obj) >= 0;
    },
  
    // Add any extra methods to Ember.Array that are native to the built-in Array.
    /**
      Returns a new array that is a slice of the receiver. This implementation
      uses the observable array methods to retrieve the objects for the new
      slice.
  
      ```javascript
      var arr = ['red', 'green', 'blue'];
      arr.slice(0);       // ['red', 'green', 'blue']
      arr.slice(0, 2);    // ['red', 'green']
      arr.slice(1, 100);  // ['green', 'blue']
      ```
  
      @method slice
      @param {Integer} beginIndex (Optional) index to begin slicing from.
      @param {Integer} endIndex (Optional) index to end the slice at.
      @return {Array} New array with specified slice
    */
    slice: function(beginIndex, endIndex) {
      var ret = Ember.A([]);
      var length = get(this, 'length') ;
      if (isNone(beginIndex)) beginIndex = 0 ;
      if (isNone(endIndex) || (endIndex > length)) endIndex = length ;
  
      if (beginIndex < 0) beginIndex = length + beginIndex;
      if (endIndex < 0) endIndex = length + endIndex;
  
      while(beginIndex < endIndex) {
        ret[ret.length] = this.objectAt(beginIndex++) ;
      }
      return ret ;
    },
  
    /**
      Returns the index of the given object's first occurrence.
      If no `startAt` argument is given, the starting location to
      search is 0. If it's negative, will count backward from
      the end of the array. Returns -1 if no match is found.
  
      ```javascript
      var arr = ["a", "b", "c", "d", "a"];
      arr.indexOf("a");       //  0
      arr.indexOf("z");       // -1
      arr.indexOf("a", 2);    //  4
      arr.indexOf("a", -1);   //  4
      arr.indexOf("b", 3);    // -1
      arr.indexOf("a", 100);  // -1
      ```
  
      @method indexOf
      @param {Object} object the item to search for
      @param {Number} startAt optional starting location to search, default 0
      @return {Number} index or -1 if not found
    */
    indexOf: function(object, startAt) {
      var idx, len = get(this, 'length');
  
      if (startAt === undefined) startAt = 0;
      if (startAt < 0) startAt += len;
  
      for(idx=startAt;idx<len;idx++) {
        if (this.objectAt(idx, true) === object) return idx ;
      }
      return -1;
    },
  
    /**
      Returns the index of the given object's last occurrence.
      If no `startAt` argument is given, the search starts from
      the last position. If it's negative, will count backward
      from the end of the array. Returns -1 if no match is found.
  
      ```javascript
      var arr = ["a", "b", "c", "d", "a"];
      arr.lastIndexOf("a");       //  4
      arr.lastIndexOf("z");       // -1
      arr.lastIndexOf("a", 2);    //  0
      arr.lastIndexOf("a", -1);   //  4
      arr.lastIndexOf("b", 3);    //  1
      arr.lastIndexOf("a", 100);  //  4
      ```
  
      @method lastIndexOf
      @param {Object} object the item to search for
      @param {Number} startAt optional starting location to search, default 0
      @return {Number} index or -1 if not found
    */
    lastIndexOf: function(object, startAt) {
      var idx, len = get(this, 'length');
  
      if (startAt === undefined || startAt >= len) startAt = len-1;
      if (startAt < 0) startAt += len;
  
      for(idx=startAt;idx>=0;idx--) {
        if (this.objectAt(idx) === object) return idx ;
      }
      return -1;
    },
  
    // ..........................................................
    // ARRAY OBSERVERS
    //
  
    /**
      Adds an array observer to the receiving array. The array observer object
      normally must implement two methods:
  
      * `arrayWillChange(observedObj, start, removeCount, addCount)` - This method will be
        called just before the array is modified.
      * `arrayDidChange(observedObj, start, removeCount, addCount)` - This method will be
        called just after the array is modified.
  
      Both callbacks will be passed the observed object, starting index of the
      change as well a a count of the items to be removed and added. You can use
      these callbacks to optionally inspect the array during the change, clear
      caches, or do any other bookkeeping necessary.
  
      In addition to passing a target, you can also include an options hash
      which you can use to override the method names that will be invoked on the
      target.
  
      @method addArrayObserver
      @param {Object} target The observer object.
      @param {Hash} opts Optional hash of configuration options including
        `willChange` and `didChange` option.
      @return {Ember.Array} receiver
    */
    addArrayObserver: function(target, opts) {
      var willChange = (opts && opts.willChange) || 'arrayWillChange',
          didChange  = (opts && opts.didChange) || 'arrayDidChange';
  
      var hasObservers = get(this, 'hasArrayObservers');
      if (!hasObservers) Ember.propertyWillChange(this, 'hasArrayObservers');
      Ember.addListener(this, '@array:before', target, willChange);
      Ember.addListener(this, '@array:change', target, didChange);
      if (!hasObservers) Ember.propertyDidChange(this, 'hasArrayObservers');
      return this;
    },
  
    /**
      Removes an array observer from the object if the observer is current
      registered. Calling this method multiple times with the same object will
      have no effect.
  
      @method removeArrayObserver
      @param {Object} target The object observing the array.
      @param {Hash} opts Optional hash of configuration options including
        `willChange` and `didChange` option.
      @return {Ember.Array} receiver
    */
    removeArrayObserver: function(target, opts) {
      var willChange = (opts && opts.willChange) || 'arrayWillChange',
          didChange  = (opts && opts.didChange) || 'arrayDidChange';
  
      var hasObservers = get(this, 'hasArrayObservers');
      if (hasObservers) Ember.propertyWillChange(this, 'hasArrayObservers');
      Ember.removeListener(this, '@array:before', target, willChange);
      Ember.removeListener(this, '@array:change', target, didChange);
      if (hasObservers) Ember.propertyDidChange(this, 'hasArrayObservers');
      return this;
    },
  
    /**
      Becomes true whenever the array currently has observers watching changes
      on the array.
  
      @property Boolean
    */
    hasArrayObservers: Ember.computed(function() {
      return Ember.hasListeners(this, '@array:change') || Ember.hasListeners(this, '@array:before');
    }),
  
    /**
      If you are implementing an object that supports `Ember.Array`, call this
      method just before the array content changes to notify any observers and
      invalidate any related properties. Pass the starting index of the change
      as well as a delta of the amounts to change.
  
      @method arrayContentWillChange
      @param {Number} startIdx The starting index in the array that will change.
      @param {Number} removeAmt The number of items that will be removed. If you
        pass `null` assumes 0
      @param {Number} addAmt The number of items that will be added. If you
        pass `null` assumes 0.
      @return {Ember.Array} receiver
    */
    arrayContentWillChange: function(startIdx, removeAmt, addAmt) {
  
      // if no args are passed assume everything changes
      if (startIdx===undefined) {
        startIdx = 0;
        removeAmt = addAmt = -1;
      } else {
        if (removeAmt === undefined) removeAmt=-1;
        if (addAmt    === undefined) addAmt=-1;
      }
  
      // Make sure the @each proxy is set up if anyone is observing @each
      if (Ember.isWatching(this, '@each')) { get(this, '@each'); }
  
      Ember.sendEvent(this, '@array:before', [this, startIdx, removeAmt, addAmt]);
  
      var removing, lim;
      if (startIdx>=0 && removeAmt>=0 && get(this, 'hasEnumerableObservers')) {
        removing = [];
        lim = startIdx+removeAmt;
        for(var idx=startIdx;idx<lim;idx++) removing.push(this.objectAt(idx));
      } else {
        removing = removeAmt;
      }
  
      this.enumerableContentWillChange(removing, addAmt);
  
      return this;
    },
  
    /**
      If you are implementing an object that supports `Ember.Array`, call this
      method just after the array content changes to notify any observers and
      invalidate any related properties. Pass the starting index of the change
      as well as a delta of the amounts to change.
  
      @method arrayContentDidChange
      @param {Number} startIdx The starting index in the array that did change.
      @param {Number} removeAmt The number of items that were removed. If you
        pass `null` assumes 0
      @param {Number} addAmt The number of items that were added. If you
        pass `null` assumes 0.
      @return {Ember.Array} receiver
    */
    arrayContentDidChange: function(startIdx, removeAmt, addAmt) {
  
      // if no args are passed assume everything changes
      if (startIdx===undefined) {
        startIdx = 0;
        removeAmt = addAmt = -1;
      } else {
        if (removeAmt === undefined) removeAmt=-1;
        if (addAmt    === undefined) addAmt=-1;
      }
  
      var adding, lim;
      if (startIdx>=0 && addAmt>=0 && get(this, 'hasEnumerableObservers')) {
        adding = [];
        lim = startIdx+addAmt;
        for(var idx=startIdx;idx<lim;idx++) adding.push(this.objectAt(idx));
      } else {
        adding = addAmt;
      }
  
      this.enumerableContentDidChange(removeAmt, adding);
      Ember.sendEvent(this, '@array:change', [this, startIdx, removeAmt, addAmt]);
  
      var length      = get(this, 'length'),
          cachedFirst = cacheFor(this, 'firstObject'),
          cachedLast  = cacheFor(this, 'lastObject');
      if (this.objectAt(0) !== cachedFirst) {
        Ember.propertyWillChange(this, 'firstObject');
        Ember.propertyDidChange(this, 'firstObject');
      }
      if (this.objectAt(length-1) !== cachedLast) {
        Ember.propertyWillChange(this, 'lastObject');
        Ember.propertyDidChange(this, 'lastObject');
      }
  
      return this;
    },
  
    // ..........................................................
    // ENUMERATED PROPERTIES
    //
  
    /**
      Returns a special object that can be used to observe individual properties
      on the array. Just get an equivalent property on this object and it will
      return an enumerable that maps automatically to the named key on the
      member objects.
  
      @property @each
    */
    '@each': Ember.computed(function() {
      if (!this.__each) this.__each = new Ember.EachProxy(this);
      return this.__each;
    })
  
  }) ;
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  
  /**
    Implements some standard methods for comparing objects. Add this mixin to
    any class you create that can compare its instances.
  
    You should implement the `compare()` method.
  
    @class Comparable
    @namespace Ember
    @extends Ember.Mixin
    @since Ember 0.9
  */
  Ember.Comparable = Ember.Mixin.create( /** @scope Ember.Comparable.prototype */{
  
    /**
      walk like a duck. Indicates that the object can be compared.
  
      @property isComparable
      @type Boolean
      @default true
    */
    isComparable: true,
  
    /**
      Override to return the result of the comparison of the two parameters. The
      compare method should return:
  
      - `-1` if `a < b`
      - `0` if `a == b`
      - `1` if `a > b`
  
      Default implementation raises an exception.
  
      @method compare
      @param a {Object} the first object to compare
      @param b {Object} the second object to compare
      @return {Integer} the result of the comparison
    */
    compare: Ember.required(Function)
  
  });
  
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  
  
  var get = Ember.get, set = Ember.set;
  
  /**
    Implements some standard methods for copying an object. Add this mixin to
    any object you create that can create a copy of itself. This mixin is
    added automatically to the built-in array.
  
    You should generally implement the `copy()` method to return a copy of the
    receiver.
  
    Note that `frozenCopy()` will only work if you also implement
    `Ember.Freezable`.
  
    @class Copyable
    @namespace Ember
    @extends Ember.Mixin
    @since Ember 0.9
  */
  Ember.Copyable = Ember.Mixin.create(/** @scope Ember.Copyable.prototype */ {
  
    /**
      Override to return a copy of the receiver. Default implementation raises
      an exception.
  
      @method copy
      @param {Boolean} deep if `true`, a deep copy of the object should be made
      @return {Object} copy of receiver
    */
    copy: Ember.required(Function),
  
    /**
      If the object implements `Ember.Freezable`, then this will return a new
      copy if the object is not frozen and the receiver if the object is frozen.
  
      Raises an exception if you try to call this method on a object that does
      not support freezing.
  
      You should use this method whenever you want a copy of a freezable object
      since a freezable object can simply return itself without actually
      consuming more memory.
  
      @method frozenCopy
      @return {Object} copy of receiver or receiver
    */
    frozenCopy: function() {
      if (Ember.Freezable && Ember.Freezable.detect(this)) {
        return get(this, 'isFrozen') ? this : this.copy().freeze();
      } else {
        throw new Error(Ember.String.fmt("%@ does not support freezing", [this]));
      }
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  
  var get = Ember.get, set = Ember.set;
  
  /**
    The `Ember.Freezable` mixin implements some basic methods for marking an
    object as frozen. Once an object is frozen it should be read only. No changes
    may be made the internal state of the object.
  
    ## Enforcement
  
    To fully support freezing in your subclass, you must include this mixin and
    override any method that might alter any property on the object to instead
    raise an exception. You can check the state of an object by checking the
    `isFrozen` property.
  
    Although future versions of JavaScript may support language-level freezing
    object objects, that is not the case today. Even if an object is freezable,
    it is still technically possible to modify the object, even though it could
    break other parts of your application that do not expect a frozen object to
    change. It is, therefore, very important that you always respect the
    `isFrozen` property on all freezable objects.
  
    ## Example Usage
  
    The example below shows a simple object that implement the `Ember.Freezable`
    protocol.
  
    ```javascript
    Contact = Ember.Object.extend(Ember.Freezable, {
      firstName: null,
      lastName: null,
  
      // swaps the names
      swapNames: function() {
        if (this.get('isFrozen')) throw Ember.FROZEN_ERROR;
        var tmp = this.get('firstName');
        this.set('firstName', this.get('lastName'));
        this.set('lastName', tmp);
        return this;
      }
  
    });
  
    c = Context.create({ firstName: "John", lastName: "Doe" });
    c.swapNames();  // returns c
    c.freeze();
    c.swapNames();  // EXCEPTION
    ```
  
    ## Copying
  
    Usually the `Ember.Freezable` protocol is implemented in cooperation with the
    `Ember.Copyable` protocol, which defines a `frozenCopy()` method that will
    return a frozen object, if the object implements this method as well.
  
    @class Freezable
    @namespace Ember
    @extends Ember.Mixin
    @since Ember 0.9
  */
  Ember.Freezable = Ember.Mixin.create(/** @scope Ember.Freezable.prototype */ {
  
    /**
      Set to `true` when the object is frozen. Use this property to detect
      whether your object is frozen or not.
  
      @property isFrozen
      @type Boolean
    */
    isFrozen: false,
  
    /**
      Freezes the object. Once this method has been called the object should
      no longer allow any properties to be edited.
  
      @method freeze
      @return {Object} receiver
    */
    freeze: function() {
      if (get(this, 'isFrozen')) return this;
      set(this, 'isFrozen', true);
      return this;
    }
  
  });
  
  Ember.FROZEN_ERROR = "Frozen object cannot be modified.";
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var forEach = Ember.EnumerableUtils.forEach;
  
  /**
    This mixin defines the API for modifying generic enumerables. These methods
    can be applied to an object regardless of whether it is ordered or
    unordered.
  
    Note that an Enumerable can change even if it does not implement this mixin.
    For example, a MappedEnumerable cannot be directly modified but if its
    underlying enumerable changes, it will change also.
  
    ## Adding Objects
  
    To add an object to an enumerable, use the `addObject()` method. This
    method will only add the object to the enumerable if the object is not
    already present and is of a type supported by the enumerable.
  
    ```javascript
    set.addObject(contact);
    ```
  
    ## Removing Objects
  
    To remove an object from an enumerable, use the `removeObject()` method. This
    will only remove the object if it is present in the enumerable, otherwise
    this method has no effect.
  
    ```javascript
    set.removeObject(contact);
    ```
  
    ## Implementing In Your Own Code
  
    If you are implementing an object and want to support this API, just include
    this mixin in your class and implement the required methods. In your unit
    tests, be sure to apply the Ember.MutableEnumerableTests to your object.
  
    @class MutableEnumerable
    @namespace Ember
    @extends Ember.Mixin
    @uses Ember.Enumerable
  */
  Ember.MutableEnumerable = Ember.Mixin.create(Ember.Enumerable, {
  
    /**
      __Required.__ You must implement this method to apply this mixin.
  
      Attempts to add the passed object to the receiver if the object is not
      already present in the collection. If the object is present, this method
      has no effect.
  
      If the passed object is of a type not supported by the receiver,
      then this method should raise an exception.
  
      @method addObject
      @param {Object} object The object to add to the enumerable.
      @return {Object} the passed object
    */
    addObject: Ember.required(Function),
  
    /**
      Adds each object in the passed enumerable to the receiver.
  
      @method addObjects
      @param {Ember.Enumerable} objects the objects to add.
      @return {Object} receiver
    */
    addObjects: function(objects) {
      Ember.beginPropertyChanges(this);
      forEach(objects, function(obj) { this.addObject(obj); }, this);
      Ember.endPropertyChanges(this);
      return this;
    },
  
    /**
      __Required.__ You must implement this method to apply this mixin.
  
      Attempts to remove the passed object from the receiver collection if the
      object is present in the collection. If the object is not present,
      this method has no effect.
  
      If the passed object is of a type not supported by the receiver,
      then this method should raise an exception.
  
      @method removeObject
      @param {Object} object The object to remove from the enumerable.
      @return {Object} the passed object
    */
    removeObject: Ember.required(Function),
  
  
    /**
      Removes each object in the passed enumerable from the receiver.
  
      @method removeObjects
      @param {Ember.Enumerable} objects the objects to remove
      @return {Object} receiver
    */
    removeObjects: function(objects) {
      Ember.beginPropertyChanges(this);
      forEach(objects, function(obj) { this.removeObject(obj); }, this);
      Ember.endPropertyChanges(this);
      return this;
    }
  
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  // ..........................................................
  // CONSTANTS
  //
  
  var OUT_OF_RANGE_EXCEPTION = "Index out of range" ;
  var EMPTY = [];
  
  // ..........................................................
  // HELPERS
  //
  
  var get = Ember.get, set = Ember.set;
  
  /**
    This mixin defines the API for modifying array-like objects. These methods
    can be applied only to a collection that keeps its items in an ordered set.
  
    Note that an Array can change even if it does not implement this mixin.
    For example, one might implement a SparseArray that cannot be directly
    modified, but if its underlying enumerable changes, it will change also.
  
    @class MutableArray
    @namespace Ember
    @extends Ember.Mixin
    @uses Ember.Array
    @uses Ember.MutableEnumerable
  */
  Ember.MutableArray = Ember.Mixin.create(Ember.Array, Ember.MutableEnumerable,/** @scope Ember.MutableArray.prototype */ {
  
    /**
      __Required.__ You must implement this method to apply this mixin.
  
      This is one of the primitives you must implement to support `Ember.Array`.
      You should replace amt objects started at idx with the objects in the
      passed array. You should also call `this.enumerableContentDidChange()`
  
      @method replace
      @param {Number} idx Starting index in the array to replace. If
        idx >= length, then append to the end of the array.
      @param {Number} amt Number of elements that should be removed from
        the array, starting at *idx*.
      @param {Array} objects An array of zero or more objects that should be
        inserted into the array at *idx*
    */
    replace: Ember.required(),
  
    /**
      Remove all elements from self. This is useful if you
      want to reuse an existing array without having to recreate it.
  
      ```javascript
      var colors = ["red", "green", "blue"];
      color.length();   //  3
      colors.clear();   //  []
      colors.length();  //  0
      ```
  
      @method clear
      @return {Ember.Array} An empty Array.
    */
    clear: function () {
      var len = get(this, 'length');
      if (len === 0) return this;
      this.replace(0, len, EMPTY);
      return this;
    },
  
    /**
      This will use the primitive `replace()` method to insert an object at the
      specified index.
  
      ```javascript
      var colors = ["red", "green", "blue"];
      colors.insertAt(2, "yellow");  // ["red", "green", "yellow", "blue"]
      colors.insertAt(5, "orange");  // Error: Index out of range
      ```
  
      @method insertAt
      @param {Number} idx index of insert the object at.
      @param {Object} object object to insert
      @return this
    */
    insertAt: function(idx, object) {
      if (idx > get(this, 'length')) throw new Error(OUT_OF_RANGE_EXCEPTION) ;
      this.replace(idx, 0, [object]) ;
      return this ;
    },
  
    /**
      Remove an object at the specified index using the `replace()` primitive
      method. You can pass either a single index, or a start and a length.
  
      If you pass a start and length that is beyond the
      length this method will throw an `Ember.OUT_OF_RANGE_EXCEPTION`
  
      ```javascript
      var colors = ["red", "green", "blue", "yellow", "orange"];
      colors.removeAt(0);     // ["green", "blue", "yellow", "orange"]
      colors.removeAt(2, 2);  // ["green", "blue"]
      colors.removeAt(4, 2);  // Error: Index out of range
      ```
  
      @method removeAt
      @param {Number} start index, start of range
      @param {Number} len length of passing range
      @return {Object} receiver
    */
    removeAt: function(start, len) {
      if ('number' === typeof start) {
  
        if ((start < 0) || (start >= get(this, 'length'))) {
          throw new Error(OUT_OF_RANGE_EXCEPTION);
        }
  
        // fast case
        if (len === undefined) len = 1;
        this.replace(start, len, EMPTY);
      }
  
      return this ;
    },
  
    /**
      Push the object onto the end of the array. Works just like `push()` but it
      is KVO-compliant.
  
      ```javascript
      var colors = ["red", "green", "blue"];
      colors.pushObject("black");               // ["red", "green", "blue", "black"]
      colors.pushObject(["yellow", "orange"]);  // ["red", "green", "blue", "black", ["yellow", "orange"]]
      ```
  
      @method pushObject
      @param {*} obj object to push
      @return {*} the same obj passed as param
    */
    pushObject: function(obj) {
      this.insertAt(get(this, 'length'), obj) ;
      return obj ;
    },
  
    /**
      Add the objects in the passed numerable to the end of the array. Defers
      notifying observers of the change until all objects are added.
  
      ```javascript
      var colors = ["red", "green", "blue"];
      colors.pushObjects("black");               // ["red", "green", "blue", "black"]
      colors.pushObjects(["yellow", "orange"]);  // ["red", "green", "blue", "black", "yellow", "orange"]
      ```
  
      @method pushObjects
      @param {Ember.Enumerable} objects the objects to add
      @return {Ember.Array} receiver
    */
    pushObjects: function(objects) {
      this.replace(get(this, 'length'), 0, objects);
      return this;
    },
  
    /**
      Pop object from array or nil if none are left. Works just like `pop()` but
      it is KVO-compliant.
  
      ```javascript
      var colors = ["red", "green", "blue"];
      colors.popObject();   // "blue"
      console.log(colors);  // ["red", "green"]
      ```
  
      @method popObject
      @return object
    */
    popObject: function() {
      var len = get(this, 'length') ;
      if (len === 0) return null ;
  
      var ret = this.objectAt(len-1) ;
      this.removeAt(len-1, 1) ;
      return ret ;
    },
  
    /**
      Shift an object from start of array or nil if none are left. Works just
      like `shift()` but it is KVO-compliant.
  
      ```javascript
      var colors = ["red", "green", "blue"];
      colors.shiftObject();  // "red"
      console.log(colors);   // ["green", "blue"]
      ```
  
      @method shiftObject
      @return object
    */
    shiftObject: function() {
      if (get(this, 'length') === 0) return null ;
      var ret = this.objectAt(0) ;
      this.removeAt(0) ;
      return ret ;
    },
  
    /**
      Unshift an object to start of array. Works just like `unshift()` but it is
      KVO-compliant.
  
      ```javascript
      var colors = ["red", "green", "blue"];
      colors.unshiftObject("yellow");             // ["yellow", "red", "green", "blue"]
      colors.unshiftObject(["black", "white"]);   // [["black", "white"], "yellow", "red", "green", "blue"]
      ```
  
      @method unshiftObject
      @param {*} obj object to unshift
      @return {*} the same obj passed as param
    */
    unshiftObject: function(obj) {
      this.insertAt(0, obj) ;
      return obj ;
    },
  
    /**
      Adds the named objects to the beginning of the array. Defers notifying
      observers until all objects have been added.
  
      ```javascript
      var colors = ["red", "green", "blue"];
      colors.unshiftObjects(["black", "white"]);   // ["black", "white", "red", "green", "blue"]
      colors.unshiftObjects("yellow");             // Type Error: 'undefined' is not a function
      ```
  
      @method unshiftObjects
      @param {Ember.Enumerable} objects the objects to add
      @return {Ember.Array} receiver
    */
    unshiftObjects: function(objects) {
      this.replace(0, 0, objects);
      return this;
    },
  
    /**
      Reverse objects in the array. Works just like `reverse()` but it is
      KVO-compliant.
  
      @method reverseObjects
      @return {Ember.Array} receiver
     */
    reverseObjects: function() {
      var len = get(this, 'length');
      if (len === 0) return this;
      var objects = this.toArray().reverse();
      this.replace(0, len, objects);
      return this;
    },
  
    /**
      Replace all the the receiver's content with content of the argument.
      If argument is an empty array receiver will be cleared.
  
      ```javascript
      var colors = ["red", "green", "blue"];
      colors.setObjects(["black", "white"]);  // ["black", "white"]
      colors.setObjects([]);                  // []
      ```
  
      @method setObjects
      @param {Ember.Array} objects array whose content will be used for replacing
          the content of the receiver
      @return {Ember.Array} receiver with the new content
     */
    setObjects: function(objects) {
      if (objects.length === 0) return this.clear();
  
      var len = get(this, 'length');
      this.replace(0, len, objects);
      return this;
    },
  
    // ..........................................................
    // IMPLEMENT Ember.MutableEnumerable
    //
  
    removeObject: function(obj) {
      var loc = get(this, 'length') || 0;
      while(--loc >= 0) {
        var curObject = this.objectAt(loc) ;
        if (curObject === obj) this.removeAt(loc) ;
      }
      return this ;
    },
  
    addObject: function(obj) {
      if (!this.contains(obj)) this.pushObject(obj);
      return this ;
    }
  
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var get = Ember.get, set = Ember.set;
  
  /**
    ## Overview
  
    This mixin provides properties and property observing functionality, core
    features of the Ember object model.
  
    Properties and observers allow one object to observe changes to a
    property on another object. This is one of the fundamental ways that
    models, controllers and views communicate with each other in an Ember
    application.
  
    Any object that has this mixin applied can be used in observer
    operations. That includes `Ember.Object` and most objects you will
    interact with as you write your Ember application.
  
    Note that you will not generally apply this mixin to classes yourself,
    but you will use the features provided by this module frequently, so it
    is important to understand how to use it.
  
    ## Using `get()` and `set()`
  
    Because of Ember's support for bindings and observers, you will always
    access properties using the get method, and set properties using the
    set method. This allows the observing objects to be notified and
    computed properties to be handled properly.
  
    More documentation about `get` and `set` are below.
  
    ## Observing Property Changes
  
    You typically observe property changes simply by adding the `observes`
    call to the end of your method declarations in classes that you write.
    For example:
  
    ```javascript
    Ember.Object.extend({
      valueObserver: function() {
        // Executes whenever the "value" property changes
      }.observes('value')
    });
    ```
  
    Although this is the most common way to add an observer, this capability
    is actually built into the `Ember.Object` class on top of two methods
    defined in this mixin: `addObserver` and `removeObserver`. You can use
    these two methods to add and remove observers yourself if you need to
    do so at runtime.
  
    To add an observer for a property, call:
  
    ```javascript
    object.addObserver('propertyKey', targetObject, targetAction)
    ```
  
    This will call the `targetAction` method on the `targetObject` whenever
    the value of the `propertyKey` changes.
  
    Note that if `propertyKey` is a computed property, the observer will be
    called when any of the property dependencies are changed, even if the
    resulting value of the computed property is unchanged. This is necessary
    because computed properties are not computed until `get` is called.
  
    @class Observable
    @namespace Ember
    @extends Ember.Mixin
  */
  Ember.Observable = Ember.Mixin.create(/** @scope Ember.Observable.prototype */ {
  
    /**
      Retrieves the value of a property from the object.
  
      This method is usually similar to using `object[keyName]` or `object.keyName`,
      however it supports both computed properties and the unknownProperty
      handler.
  
      Because `get` unifies the syntax for accessing all these kinds
      of properties, it can make many refactorings easier, such as replacing a
      simple property with a computed property, or vice versa.
  
      ### Computed Properties
  
      Computed properties are methods defined with the `property` modifier
      declared at the end, such as:
  
      ```javascript
      fullName: function() {
        return this.getEach('firstName', 'lastName').compact().join(' ');
      }.property('firstName', 'lastName')
      ```
  
      When you call `get` on a computed property, the function will be
      called and the return value will be returned instead of the function
      itself.
  
      ### Unknown Properties
  
      Likewise, if you try to call `get` on a property whose value is
      `undefined`, the `unknownProperty()` method will be called on the object.
      If this method returns any value other than `undefined`, it will be returned
      instead. This allows you to implement "virtual" properties that are
      not defined upfront.
  
      @method get
      @param {String} keyName The property to retrieve
      @return {Object} The property value or undefined.
    */
    get: function(keyName) {
      return get(this, keyName);
    },
  
    /**
      To get multiple properties at once, call `getProperties`
      with a list of strings or an array:
  
      ```javascript
      record.getProperties('firstName', 'lastName', 'zipCode');  // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }
      ```
  
      is equivalent to:
  
      ```javascript
      record.getProperties(['firstName', 'lastName', 'zipCode']);  // { firstName: 'John', lastName: 'Doe', zipCode: '10011' }
      ```
  
      @method getProperties
      @param {String...|Array} list of keys to get
      @return {Hash}
    */
    getProperties: function() {
      var ret = {};
      var propertyNames = arguments;
      if (arguments.length === 1 && Ember.typeOf(arguments[0]) === 'array') {
        propertyNames = arguments[0];
      }
      for(var i = 0; i < propertyNames.length; i++) {
        ret[propertyNames[i]] = get(this, propertyNames[i]);
      }
      return ret;
    },
  
    /**
      Sets the provided key or path to the value.
  
      This method is generally very similar to calling `object[key] = value` or
      `object.key = value`, except that it provides support for computed
      properties, the `unknownProperty()` method and property observers.
  
      ### Computed Properties
  
      If you try to set a value on a key that has a computed property handler
      defined (see the `get()` method for an example), then `set()` will call
      that method, passing both the value and key instead of simply changing
      the value itself. This is useful for those times when you need to
      implement a property that is composed of one or more member
      properties.
  
      ### Unknown Properties
  
      If you try to set a value on a key that is undefined in the target
      object, then the `unknownProperty()` handler will be called instead. This
      gives you an opportunity to implement complex "virtual" properties that
      are not predefined on the object. If `unknownProperty()` returns
      undefined, then `set()` will simply set the value on the object.
  
      ### Property Observers
  
      In addition to changing the property, `set()` will also register a property
      change with the object. Unless you have placed this call inside of a
      `beginPropertyChanges()` and `endPropertyChanges(),` any "local" observers
      (i.e. observer methods declared on the same object), will be called
      immediately. Any "remote" observers (i.e. observer methods declared on
      another object) will be placed in a queue and called at a later time in a
      coalesced manner.
  
      ### Chaining
  
      In addition to property changes, `set()` returns the value of the object
      itself so you can do chaining like this:
  
      ```javascript
      record.set('firstName', 'Charles').set('lastName', 'Jolley');
      ```
  
      @method set
      @param {String} keyName The property to set
      @param {Object} value The value to set or `null`.
      @return {Ember.Observable}
    */
    set: function(keyName, value) {
      set(this, keyName, value);
      return this;
    },
  
    /**
      To set multiple properties at once, call `setProperties`
      with a Hash:
  
      ```javascript
      record.setProperties({ firstName: 'Charles', lastName: 'Jolley' });
      ```
  
      @method setProperties
      @param {Hash} hash the hash of keys and values to set
      @return {Ember.Observable}
    */
    setProperties: function(hash) {
      return Ember.setProperties(this, hash);
    },
  
    /**
      Begins a grouping of property changes.
  
      You can use this method to group property changes so that notifications
      will not be sent until the changes are finished. If you plan to make a
      large number of changes to an object at one time, you should call this
      method at the beginning of the changes to begin deferring change
      notifications. When you are done making changes, call
      `endPropertyChanges()` to deliver the deferred change notifications and end
      deferring.
  
      @method beginPropertyChanges
      @return {Ember.Observable}
    */
    beginPropertyChanges: function() {
      Ember.beginPropertyChanges();
      return this;
    },
  
    /**
      Ends a grouping of property changes.
  
      You can use this method to group property changes so that notifications
      will not be sent until the changes are finished. If you plan to make a
      large number of changes to an object at one time, you should call
      `beginPropertyChanges()` at the beginning of the changes to defer change
      notifications. When you are done making changes, call this method to
      deliver the deferred change notifications and end deferring.
  
      @method endPropertyChanges
      @return {Ember.Observable}
    */
    endPropertyChanges: function() {
      Ember.endPropertyChanges();
      return this;
    },
  
    /**
      Notify the observer system that a property is about to change.
  
      Sometimes you need to change a value directly or indirectly without
      actually calling `get()` or `set()` on it. In this case, you can use this
      method and `propertyDidChange()` instead. Calling these two methods
      together will notify all observers that the property has potentially
      changed value.
  
      Note that you must always call `propertyWillChange` and `propertyDidChange`
      as a pair. If you do not, it may get the property change groups out of
      order and cause notifications to be delivered more often than you would
      like.
  
      @method propertyWillChange
      @param {String} keyName The property key that is about to change.
      @return {Ember.Observable}
    */
    propertyWillChange: function(keyName){
      Ember.propertyWillChange(this, keyName);
      return this;
    },
  
    /**
      Notify the observer system that a property has just changed.
  
      Sometimes you need to change a value directly or indirectly without
      actually calling `get()` or `set()` on it. In this case, you can use this
      method and `propertyWillChange()` instead. Calling these two methods
      together will notify all observers that the property has potentially
      changed value.
  
      Note that you must always call `propertyWillChange` and `propertyDidChange`
      as a pair. If you do not, it may get the property change groups out of
      order and cause notifications to be delivered more often than you would
      like.
  
      @method propertyDidChange
      @param {String} keyName The property key that has just changed.
      @return {Ember.Observable}
    */
    propertyDidChange: function(keyName) {
      Ember.propertyDidChange(this, keyName);
      return this;
    },
  
    /**
      Convenience method to call `propertyWillChange` and `propertyDidChange` in
      succession.
  
      @method notifyPropertyChange
      @param {String} keyName The property key to be notified about.
      @return {Ember.Observable}
    */
    notifyPropertyChange: function(keyName) {
      this.propertyWillChange(keyName);
      this.propertyDidChange(keyName);
      return this;
    },
  
    addBeforeObserver: function(key, target, method) {
      Ember.addBeforeObserver(this, key, target, method);
    },
  
    /**
      Adds an observer on a property.
  
      This is the core method used to register an observer for a property.
  
      Once you call this method, any time the key's value is set, your observer
      will be notified. Note that the observers are triggered any time the
      value is set, regardless of whether it has actually changed. Your
      observer should be prepared to handle that.
  
      You can also pass an optional context parameter to this method. The
      context will be passed to your observer method whenever it is triggered.
      Note that if you add the same target/method pair on a key multiple times
      with different context parameters, your observer will only be called once
      with the last context you passed.
  
      ### Observer Methods
  
      Observer methods you pass should generally have the following signature if
      you do not pass a `context` parameter:
  
      ```javascript
      fooDidChange: function(sender, key, value, rev) { };
      ```
  
      The sender is the object that changed. The key is the property that
      changes. The value property is currently reserved and unused. The rev
      is the last property revision of the object when it changed, which you can
      use to detect if the key value has really changed or not.
  
      If you pass a `context` parameter, the context will be passed before the
      revision like so:
  
      ```javascript
      fooDidChange: function(sender, key, value, context, rev) { };
      ```
  
      Usually you will not need the value, context or revision parameters at
      the end. In this case, it is common to write observer methods that take
      only a sender and key value as parameters or, if you aren't interested in
      any of these values, to write an observer that has no parameters at all.
  
      @method addObserver
      @param {String} key The key to observer
      @param {Object} target The target object to invoke
      @param {String|Function} method The method to invoke.
      @return {Ember.Object} self
    */
    addObserver: function(key, target, method) {
      Ember.addObserver(this, key, target, method);
    },
  
    /**
      Remove an observer you have previously registered on this object. Pass
      the same key, target, and method you passed to `addObserver()` and your
      target will no longer receive notifications.
  
      @method removeObserver
      @param {String} key The key to observer
      @param {Object} target The target object to invoke
      @param {String|Function} method The method to invoke.
      @return {Ember.Observable} receiver
    */
    removeObserver: function(key, target, method) {
      Ember.removeObserver(this, key, target, method);
    },
  
    /**
      Returns `true` if the object currently has observers registered for a
      particular key. You can use this method to potentially defer performing
      an expensive action until someone begins observing a particular property
      on the object.
  
      @method hasObserverFor
      @param {String} key Key to check
      @return {Boolean}
    */
    hasObserverFor: function(key) {
      return Ember.hasListeners(this, key+':change');
    },
  
    /**
      @deprecated
      @method getPath
      @param {String} path The property path to retrieve
      @return {Object} The property value or undefined.
    */
    getPath: function(path) {
      Ember.deprecate("getPath is deprecated since get now supports paths");
      return this.get(path);
    },
  
    /**
      @deprecated
      @method setPath
      @param {String} path The path to the property that will be set
      @param {Object} value The value to set or `null`.
      @return {Ember.Observable}
    */
    setPath: function(path, value) {
      Ember.deprecate("setPath is deprecated since set now supports paths");
      return this.set(path, value);
    },
  
    /**
      Retrieves the value of a property, or a default value in the case that the
      property returns `undefined`.
  
      ```javascript
      person.getWithDefault('lastName', 'Doe');
      ```
  
      @method getWithDefault
      @param {String} keyName The name of the property to retrieve
      @param {Object} defaultValue The value to return if the property value is undefined
      @return {Object} The property value or the defaultValue.
    */
    getWithDefault: function(keyName, defaultValue) {
      return Ember.getWithDefault(this, keyName, defaultValue);
    },
  
    /**
      Set the value of a property to the current value plus some amount.
  
      ```javascript
      person.incrementProperty('age');
      team.incrementProperty('score', 2);
      ```
  
      @method incrementProperty
      @param {String} keyName The name of the property to increment
      @param {Number} increment The amount to increment by. Defaults to 1
      @return {Number} The new property value
    */
    incrementProperty: function(keyName, increment) {
      if (Ember.isNone(increment)) { increment = 1; }
      set(this, keyName, (get(this, keyName) || 0)+increment);
      return get(this, keyName);
    },
  
    /**
      Set the value of a property to the current value minus some amount.
  
      ```javascript
      player.decrementProperty('lives');
      orc.decrementProperty('health', 5);
      ```
  
      @method decrementProperty
      @param {String} keyName The name of the property to decrement
      @param {Number} decrement The amount to decrement by. Defaults to 1
      @return {Number} The new property value
    */
    decrementProperty: function(keyName, decrement) {
      if (Ember.isNone(decrement)) { decrement = 1; }
      set(this, keyName, (get(this, keyName) || 0)-decrement);
      return get(this, keyName);
    },
  
    /**
      Set the value of a boolean property to the opposite of it's
      current value.
  
      ```javascript
      starship.toggleProperty('warpDriveEngaged');
      ```
  
      @method toggleProperty
      @param {String} keyName The name of the property to toggle
      @return {Object} The new property value
    */
    toggleProperty: function(keyName) {
      set(this, keyName, !get(this, keyName));
      return get(this, keyName);
    },
  
    /**
      Returns the cached value of a computed property, if it exists.
      This allows you to inspect the value of a computed property
      without accidentally invoking it if it is intended to be
      generated lazily.
  
      @method cacheFor
      @param {String} keyName
      @return {Object} The cached value of the computed property, if any
    */
    cacheFor: function(keyName) {
      return Ember.cacheFor(this, keyName);
    },
  
    // intended for debugging purposes
    observersForKey: function(keyName) {
      return Ember.observersFor(this, keyName);
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var get = Ember.get, set = Ember.set;
  
  /**
  `Ember.TargetActionSupport` is a mixin that can be included in a class
  to add a `triggerAction` method with semantics similar to the Handlebars
  `{{action}}` helper. In normal Ember usage, the `{{action}}` helper is
  usually the best choice. This mixin is most often useful when you are
  doing more complex event handling in View objects.
  
  See also `Ember.ViewTargetActionSupport`, which has
  view-aware defaults for target and actionContext.
  
  @class TargetActionSupport
  @namespace Ember
  @extends Ember.Mixin
  */
  Ember.TargetActionSupport = Ember.Mixin.create({
    target: null,
    action: null,
    actionContext: null,
  
    targetObject: Ember.computed(function() {
      var target = get(this, 'target');
  
      if (Ember.typeOf(target) === "string") {
        var value = get(this, target);
        if (value === undefined) { value = get(Ember.lookup, target); }
        return value;
      } else {
        return target;
      }
    }).property('target'),
  
    actionContextObject: Ember.computed(function() {
      var actionContext = get(this, 'actionContext');
  
      if (Ember.typeOf(actionContext) === "string") {
        var value = get(this, actionContext);
        if (value === undefined) { value = get(Ember.lookup, actionContext); }
        return value;
      } else {
        return actionContext;
      }
    }).property('actionContext'),
  
    /**
    Send an "action" with an "actionContext" to a "target". The action, actionContext
    and target will be retrieved from properties of the object. For example:
  
    ```javascript
    App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, {
      target: Ember.computed.alias('controller'),
      action: 'save',
      actionContext: Ember.computed.alias('context'),
      click: function(){
        this.triggerAction(); // Sends the `save` action, along with the current context
                              // to the current controller
      }
    });
    ```
  
    The `target`, `action`, and `actionContext` can be provided as properties of
    an optional object argument to `triggerAction` as well.
  
    ```javascript
    App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, {
      click: function(){
        this.triggerAction({
          action: 'save',
          target: this.get('controller'),
          actionContext: this.get('context'),
        }); // Sends the `save` action, along with the current context
            // to the current controller
      }
    });
    ```
  
    The `actionContext` defaults to the object you mixing `TargetActionSupport` into.
    But `target` and `action` must be specified either as properties or with the argument
    to `triggerAction`, or a combination:
  
    ```javascript
    App.SaveButtonView = Ember.View.extend(Ember.TargetActionSupport, {
      target: Ember.computed.alias('controller'),
      click: function(){
        this.triggerAction({
          action: 'save'
        }); // Sends the `save` action, along with a reference to `this`,
            // to the current controller
      }
    });
    ```
  
    @method triggerAction
    @param opts {Hash} (optional, with the optional keys action, target and/or actionContext)
    @return {Boolean} true if the action was sent successfully and did not return false
    */
    triggerAction: function(opts) {
      opts = opts || {};
      var action = opts['action'] || get(this, 'action'),
          target = opts['target'] || get(this, 'targetObject'),
          actionContext = opts['actionContext'] || get(this, 'actionContextObject') || this;
  
      if (target && action) {
        var ret;
  
        if (target.send) {
          ret = target.send.apply(target, [action, actionContext]);
        } else {
          Ember.assert("The action '" + action + "' did not exist on " + target, typeof target[action] === 'function');
          ret = target[action].apply(target, [actionContext]);
        }
  
        if (ret !== false) ret = true;
  
        return ret;
      } else {
        return false;
      }
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  /**
    This mixin allows for Ember objects to subscribe to and emit events.
  
    ```javascript
    App.Person = Ember.Object.extend(Ember.Evented, {
      greet: function() {
        // ...
        this.trigger('greet');
      }
    });
  
    var person = App.Person.create();
  
    person.on('greet', function() {
      console.log('Our person has greeted');
    });
  
    person.greet();
  
    // outputs: 'Our person has greeted'
    ```
  
    You can also chain multiple event subscriptions:
  
    ```javascript
    person.on('greet', function() {
      console.log('Our person has greeted');
    }).one('greet', function() {
      console.log('Offer one-time special');
    }).off('event', this, forgetThis);
    ```
  
    @class Evented
    @namespace Ember
    @extends Ember.Mixin
   */
  Ember.Evented = Ember.Mixin.create({
  
    /**
     Subscribes to a named event with given function.
  
     ```javascript
     person.on('didLoad', function() {
       // fired once the person has loaded
     });
     ```
  
     An optional target can be passed in as the 2nd argument that will
     be set as the "this" for the callback. This is a good way to give your
     function access to the object triggering the event. When the target
     parameter is used the callback becomes the third argument.
  
     @method on
     @param {String} name The name of the event
     @param {Object} [target] The "this" binding for the callback
     @param {Function} method The callback to execute
     @return this
    */
    on: function(name, target, method) {
      Ember.addListener(this, name, target, method);
      return this;
    },
  
    /**
      Subscribes a function to a named event and then cancels the subscription
      after the first time the event is triggered. It is good to use ``one`` when
      you only care about the first time an event has taken place.
  
      This function takes an optional 2nd argument that will become the "this"
      value for the callback. If this argument is passed then the 3rd argument
      becomes the function.
  
      @method one
      @param {String} name The name of the event
      @param {Object} [target] The "this" binding for the callback
      @param {Function} method The callback to execute
      @return this
    */
    one: function(name, target, method) {
      if (!method) {
        method = target;
        target = null;
      }
  
      Ember.addListener(this, name, target, method, true);
      return this;
    },
  
    /**
      Triggers a named event for the object. Any additional arguments
      will be passed as parameters to the functions that are subscribed to the
      event.
  
      ```javascript
      person.on('didEat', function(food) {
        console.log('person ate some ' + food);
      });
  
      person.trigger('didEat', 'broccoli');
  
      // outputs: person ate some broccoli
      ```
      @method trigger
      @param {String} name The name of the event
      @param {Object...} args Optional arguments to pass on
    */
    trigger: function(name) {
      var args = [], i, l;
      for (i = 1, l = arguments.length; i < l; i++) {
        args.push(arguments[i]);
      }
      Ember.sendEvent(this, name, args);
    },
  
    fire: function(name) {
      Ember.deprecate("Ember.Evented#fire() has been deprecated in favor of trigger() for compatibility with jQuery. It will be removed in 1.0. Please update your code to call trigger() instead.");
      this.trigger.apply(this, arguments);
    },
  
    /**
      Cancels subscription for give name, target, and method.
  
      @method off
      @param {String} name The name of the event
      @param {Object} target The target of the subscription
      @param {Function} method The function of the subscription
      @return this
    */
    off: function(name, target, method) {
      Ember.removeListener(this, name, target, method);
      return this;
    },
  
    /**
      Checks to see if object has any subscriptions for named event.
  
      @method has
      @param {String} name The name of the event
      @return {Boolean} does the object have a subscription for event
     */
    has: function(name) {
      return Ember.hasListeners(this, name);
    }
  });
  
  })();
  
  
  
  (function() {
  var RSVP = requireModule("rsvp");
  
  RSVP.configure('async', function(callback, binding) {
    Ember.run.schedule('actions', binding, callback);
  });
  
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var get = Ember.get;
  
  /**
    @class Deferred
    @namespace Ember
    @extends Ember.Mixin
   */
  Ember.DeferredMixin = Ember.Mixin.create({
    /**
      Add handlers to be called when the Deferred object is resolved or rejected.
  
      @method then
      @param {Function} doneCallback a callback function to be called when done
      @param {Function} failCallback a callback function to be called when failed
    */
    then: function(resolve, reject) {
      var deferred, promise, entity;
  
      entity = this;
      deferred = get(this, '_deferred');
      promise = deferred.promise;
  
      function fulfillmentHandler(fulfillment) {
        if (fulfillment === promise) {
          return resolve(entity);
        } else {
          return resolve(fulfillment);
        }
      }
  
      return promise.then(resolve && fulfillmentHandler, reject);
    },
  
    /**
      Resolve a Deferred object and call any `doneCallbacks` with the given args.
  
      @method resolve
    */
    resolve: function(value) {
      var deferred, promise;
  
      deferred = get(this, '_deferred');
      promise = deferred.promise;
  
      if (value === this){
        deferred.resolve(promise);
      } else {
        deferred.resolve(value);
      }
    },
  
    /**
      Reject a Deferred object and call any `failCallbacks` with the given args.
  
      @method reject
    */
    reject: function(value) {
      get(this, '_deferred').reject(value);
    },
  
    _deferred: Ember.computed(function() {
      return RSVP.defer();
    })
  });
  
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  Ember.Container = requireModule('container');
  Ember.Container.set = Ember.set;
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  
  // NOTE: this object should never be included directly. Instead use Ember.
  // Ember.Object. We only define this separately so that Ember.Set can depend on it
  
  
  var set = Ember.set, get = Ember.get,
      o_create = Ember.create,
      o_defineProperty = Ember.platform.defineProperty,
      GUID_KEY = Ember.GUID_KEY,
      guidFor = Ember.guidFor,
      generateGuid = Ember.generateGuid,
      meta = Ember.meta,
      rewatch = Ember.rewatch,
      finishChains = Ember.finishChains,
      destroy = Ember.destroy,
      schedule = Ember.run.schedule,
      Mixin = Ember.Mixin,
      applyMixin = Mixin._apply,
      finishPartial = Mixin.finishPartial,
      reopen = Mixin.prototype.reopen,
      MANDATORY_SETTER = Ember.ENV.MANDATORY_SETTER,
      indexOf = Ember.EnumerableUtils.indexOf;
  
  var undefinedDescriptor = {
    configurable: true,
    writable: true,
    enumerable: false,
    value: undefined
  };
  
  function makeCtor() {
  
    // Note: avoid accessing any properties on the object since it makes the
    // method a lot faster. This is glue code so we want it to be as fast as
    // possible.
  
    var wasApplied = false, initMixins, initProperties;
  
    var Class = function() {
      if (!wasApplied) {
        Class.proto(); // prepare prototype...
      }
      o_defineProperty(this, GUID_KEY, undefinedDescriptor);
      o_defineProperty(this, '_super', undefinedDescriptor);
      var m = meta(this);
      m.proto = this;
      if (initMixins) {
        // capture locally so we can clear the closed over variable
        var mixins = initMixins;
        initMixins = null;
        this.reopen.apply(this, mixins);
      }
      if (initProperties) {
        // capture locally so we can clear the closed over variable
        var props = initProperties;
        initProperties = null;
  
        var concatenatedProperties = this.concatenatedProperties;
  
        for (var i = 0, l = props.length; i < l; i++) {
          var properties = props[i];
  
          Ember.assert("Ember.Object.create no longer supports mixing in other definitions, use createWithMixins instead.", !(properties instanceof Ember.Mixin));
  
          for (var keyName in properties) {
            if (!properties.hasOwnProperty(keyName)) { continue; }
  
            var value = properties[keyName],
                IS_BINDING = Ember.IS_BINDING;
  
            if (IS_BINDING.test(keyName)) {
              var bindings = m.bindings;
              if (!bindings) {
                bindings = m.bindings = {};
              } else if (!m.hasOwnProperty('bindings')) {
                bindings = m.bindings = o_create(m.bindings);
              }
              bindings[keyName] = value;
            }
  
            var desc = m.descs[keyName];
  
            Ember.assert("Ember.Object.create no longer supports defining computed properties.", !(value instanceof Ember.ComputedProperty));
            Ember.assert("Ember.Object.create no longer supports defining methods that call _super.", !(typeof value === 'function' && value.toString().indexOf('._super') !== -1));
  
            if (concatenatedProperties && indexOf(concatenatedProperties, keyName) >= 0) {
              var baseValue = this[keyName];
  
              if (baseValue) {
                if ('function' === typeof baseValue.concat) {
                  value = baseValue.concat(value);
                } else {
                  value = Ember.makeArray(baseValue).concat(value);
                }
              } else {
                value = Ember.makeArray(value);
              }
            }
  
            if (desc) {
              desc.set(this, keyName, value);
            } else {
              if (typeof this.setUnknownProperty === 'function' && !(keyName in this)) {
                this.setUnknownProperty(keyName, value);
              } else if (MANDATORY_SETTER) {
                Ember.defineProperty(this, keyName, null, value); // setup mandatory setter
              } else {
                this[keyName] = value;
              }
            }
          }
        }
      }
      finishPartial(this, m);
      delete m.proto;
      finishChains(this);
      this.init.apply(this, arguments);
    };
  
    Class.toString = Mixin.prototype.toString;
    Class.willReopen = function() {
      if (wasApplied) {
        Class.PrototypeMixin = Mixin.create(Class.PrototypeMixin);
      }
  
      wasApplied = false;
    };
    Class._initMixins = function(args) { initMixins = args; };
    Class._initProperties = function(args) { initProperties = args; };
  
    Class.proto = function() {
      var superclass = Class.superclass;
      if (superclass) { superclass.proto(); }
  
      if (!wasApplied) {
        wasApplied = true;
        Class.PrototypeMixin.applyPartial(Class.prototype);
        rewatch(Class.prototype);
      }
  
      return this.prototype;
    };
  
    return Class;
  
  }
  
  var CoreObject = makeCtor();
  CoreObject.toString = function() { return "Ember.CoreObject"; };
  
  CoreObject.PrototypeMixin = Mixin.create({
    reopen: function() {
      applyMixin(this, arguments, true);
      return this;
    },
  
    isInstance: true,
  
    /**
      An overridable method called when objects are instantiated. By default,
      does nothing unless it is overridden during class definition.
  
      Example:
  
      ```javascript
      App.Person = Ember.Object.extend({
        init: function() {
          this._super();
          alert('Name is ' + this.get('name'));
        }
      });
  
      var steve = App.Person.create({
        name: "Steve"
      });
  
      // alerts 'Name is Steve'.
      ```
  
      NOTE: If you do override `init` for a framework class like `Ember.View` or
      `Ember.ArrayController`, be sure to call `this._super()` in your
      `init` declaration! If you don't, Ember may not have an opportunity to
      do important setup work, and you'll see strange behavior in your
      application.
  
      @method init
    */
    init: function() {},
  
    /**
      Defines the properties that will be concatenated from the superclass
      (instead of overridden).
  
      By default, when you extend an Ember class a property defined in
      the subclass overrides a property with the same name that is defined
      in the superclass. However, there are some cases where it is preferable
      to build up a property's value by combining the superclass' property
      value with the subclass' value. An example of this in use within Ember
      is the `classNames` property of `Ember.View`.
  
      Here is some sample code showing the difference between a concatenated
      property and a normal one:
  
      ```javascript
      App.BarView = Ember.View.extend({
        someNonConcatenatedProperty: ['bar'],
        classNames: ['bar']
      });
  
      App.FooBarView = App.BarView.extend({
        someNonConcatenatedProperty: ['foo'],
        classNames: ['foo'],
      });
  
      var fooBarView = App.FooBarView.create();
      fooBarView.get('someNonConcatenatedProperty'); // ['foo']
      fooBarView.get('classNames'); // ['ember-view', 'bar', 'foo']
      ```
  
      This behavior extends to object creation as well. Continuing the
      above example:
  
      ```javascript
      var view = App.FooBarView.create({
        someNonConcatenatedProperty: ['baz'],
        classNames: ['baz']
      })
      view.get('someNonConcatenatedProperty'); // ['baz']
      view.get('classNames'); // ['ember-view', 'bar', 'foo', 'baz']
      ```
      Adding a single property that is not an array will just add it in the array:
  
      ```javascript
      var view = App.FooBarView.create({
        classNames: 'baz'
      })
      view.get('classNames'); // ['ember-view', 'bar', 'foo', 'baz']
      ```
  
      Using the `concatenatedProperties` property, we can tell to Ember that mix
      the content of the properties.
  
      In `Ember.View` the `classNameBindings` and `attributeBindings` properties
      are also concatenated, in addition to `classNames`.
  
      This feature is available for you to use throughout the Ember object model,
      although typical app developers are likely to use it infrequently.
  
      @property concatenatedProperties
      @type Array
      @default null
    */
    concatenatedProperties: null,
  
    /**
      Destroyed object property flag.
  
      if this property is `true` the observers and bindings were already
      removed by the effect of calling the `destroy()` method.
  
      @property isDestroyed
      @default false
    */
    isDestroyed: false,
  
    /**
      Destruction scheduled flag. The `destroy()` method has been called.
  
      The object stays intact until the end of the run loop at which point
      the `isDestroyed` flag is set.
  
      @property isDestroying
      @default false
    */
    isDestroying: false,
  
    /**
      Destroys an object by setting the `isDestroyed` flag and removing its
      metadata, which effectively destroys observers and bindings.
  
      If you try to set a property on a destroyed object, an exception will be
      raised.
  
      Note that destruction is scheduled for the end of the run loop and does not
      happen immediately.  It will set an isDestroying flag immediately.
  
      @method destroy
      @return {Ember.Object} receiver
    */
    destroy: function() {
      if (this.isDestroying) { return; }
      this.isDestroying = true;
  
      schedule('actions', this, this.willDestroy);
      schedule('destroy', this, this._scheduledDestroy);
      return this;
    },
  
    /**
      Override to implement teardown.
     */
    willDestroy: Ember.K,
  
    /**
      @private
  
      Invoked by the run loop to actually destroy the object. This is
      scheduled for execution by the `destroy` method.
  
      @method _scheduledDestroy
    */
    _scheduledDestroy: function() {
      if (this.isDestroyed) { return; }
      destroy(this);
      this.isDestroyed = true;
    },
  
    bind: function(to, from) {
      if (!(from instanceof Ember.Binding)) { from = Ember.Binding.from(from); }
      from.to(to).connect(this);
      return from;
    },
  
    /**
      Returns a string representation which attempts to provide more information
      than Javascript's `toString` typically does, in a generic way for all Ember
      objects.
  
          App.Person = Em.Object.extend()
          person = App.Person.create()
          person.toString() //=> "<App.Person:ember1024>"
  
      If the object's class is not defined on an Ember namespace, it will
      indicate it is a subclass of the registered superclass:
  
          Student = App.Person.extend()
          student = Student.create()
          student.toString() //=> "<(subclass of App.Person):ember1025>"
  
      If the method `toStringExtension` is defined, its return value will be
      included in the output.
  
          App.Teacher = App.Person.extend({
            toStringExtension: function(){
              return this.get('fullName');
            }
          });
          teacher = App.Teacher.create()
          teacher.toString(); //=> "<App.Teacher:ember1026:Tom Dale>"
  
      @method toString
      @return {String} string representation
    */
    toString: function toString() {
      var hasToStringExtension = typeof this.toStringExtension === 'function',
          extension = hasToStringExtension ? ":" + this.toStringExtension() : '';
      var ret = '<'+this.constructor.toString()+':'+guidFor(this)+extension+'>';
      this.toString = makeToString(ret);
      return ret;
    }
  });
  
  CoreObject.PrototypeMixin.ownerConstructor = CoreObject;
  
  function makeToString(ret) {
    return function() { return ret; };
  }
  
  if (Ember.config.overridePrototypeMixin) {
    Ember.config.overridePrototypeMixin(CoreObject.PrototypeMixin);
  }
  
  CoreObject.__super__ = null;
  
  var ClassMixin = Mixin.create({
  
    ClassMixin: Ember.required(),
  
    PrototypeMixin: Ember.required(),
  
    isClass: true,
  
    isMethod: false,
  
    extend: function() {
      var Class = makeCtor(), proto;
      Class.ClassMixin = Mixin.create(this.ClassMixin);
      Class.PrototypeMixin = Mixin.create(this.PrototypeMixin);
  
      Class.ClassMixin.ownerConstructor = Class;
      Class.PrototypeMixin.ownerConstructor = Class;
  
      reopen.apply(Class.PrototypeMixin, arguments);
  
      Class.superclass = this;
      Class.__super__  = this.prototype;
  
      proto = Class.prototype = o_create(this.prototype);
      proto.constructor = Class;
      generateGuid(proto, 'ember');
      meta(proto).proto = proto; // this will disable observers on prototype
  
      Class.ClassMixin.apply(Class);
      return Class;
    },
  
    createWithMixins: function() {
      var C = this;
      if (arguments.length>0) { this._initMixins(arguments); }
      return new C();
    },
  
    create: function() {
      var C = this;
      if (arguments.length>0) { this._initProperties(arguments); }
      return new C();
    },
  
    reopen: function() {
      this.willReopen();
      reopen.apply(this.PrototypeMixin, arguments);
      return this;
    },
  
    reopenClass: function() {
      reopen.apply(this.ClassMixin, arguments);
      applyMixin(this, arguments, false);
      return this;
    },
  
    detect: function(obj) {
      if ('function' !== typeof obj) { return false; }
      while(obj) {
        if (obj===this) { return true; }
        obj = obj.superclass;
      }
      return false;
    },
  
    detectInstance: function(obj) {
      return obj instanceof this;
    },
  
    /**
      In some cases, you may want to annotate computed properties with additional
      metadata about how they function or what values they operate on. For
      example, computed property functions may close over variables that are then
      no longer available for introspection.
  
      You can pass a hash of these values to a computed property like this:
  
      ```javascript
      person: function() {
        var personId = this.get('personId');
        return App.Person.create({ id: personId });
      }.property().meta({ type: App.Person })
      ```
  
      Once you've done this, you can retrieve the values saved to the computed
      property from your class like this:
  
      ```javascript
      MyClass.metaForProperty('person');
      ```
  
      This will return the original hash that was passed to `meta()`.
  
      @method metaForProperty
      @param key {String} property name
    */
    metaForProperty: function(key) {
      var desc = meta(this.proto(), false).descs[key];
  
      Ember.assert("metaForProperty() could not find a computed property with key '"+key+"'.", !!desc && desc instanceof Ember.ComputedProperty);
      return desc._meta || {};
    },
  
    /**
      Iterate over each computed property for the class, passing its name
      and any associated metadata (see `metaForProperty`) to the callback.
  
      @method eachComputedProperty
      @param {Function} callback
      @param {Object} binding
    */
    eachComputedProperty: function(callback, binding) {
      var proto = this.proto(),
          descs = meta(proto).descs,
          empty = {},
          property;
  
      for (var name in descs) {
        property = descs[name];
  
        if (property instanceof Ember.ComputedProperty) {
          callback.call(binding || this, name, property._meta || empty);
        }
      }
    }
  
  });
  
  ClassMixin.ownerConstructor = CoreObject;
  
  if (Ember.config.overrideClassMixin) {
    Ember.config.overrideClassMixin(ClassMixin);
  }
  
  CoreObject.ClassMixin = ClassMixin;
  ClassMixin.apply(CoreObject);
  
  /**
    @class CoreObject
    @namespace Ember
  */
  Ember.CoreObject = CoreObject;
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  /**
    `Ember.Object` is the main base class for all Ember objects. It is a subclass
    of `Ember.CoreObject` with the `Ember.Observable` mixin applied. For details,
    see the documentation for each of these.
  
    @class Object
    @namespace Ember
    @extends Ember.CoreObject
    @uses Ember.Observable
  */
  Ember.Object = Ember.CoreObject.extend(Ember.Observable);
  Ember.Object.toString = function() { return "Ember.Object"; };
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var get = Ember.get, indexOf = Ember.ArrayPolyfills.indexOf;
  
  /**
    A Namespace is an object usually used to contain other objects or methods
    such as an application or framework. Create a namespace anytime you want
    to define one of these new containers.
  
    # Example Usage
  
    ```javascript
    MyFramework = Ember.Namespace.create({
      VERSION: '1.0.0'
    });
    ```
  
    @class Namespace
    @namespace Ember
    @extends Ember.Object
  */
  var Namespace = Ember.Namespace = Ember.Object.extend({
    isNamespace: true,
  
    init: function() {
      Ember.Namespace.NAMESPACES.push(this);
      Ember.Namespace.PROCESSED = false;
    },
  
    toString: function() {
      var name = get(this, 'name');
      if (name) { return name; }
  
      findNamespaces();
      return this[Ember.GUID_KEY+'_name'];
    },
  
    nameClasses: function() {
      processNamespace([this.toString()], this, {});
    },
  
    destroy: function() {
      var namespaces = Ember.Namespace.NAMESPACES;
      Ember.lookup[this.toString()] = undefined;
      namespaces.splice(indexOf.call(namespaces, this), 1);
      this._super();
    }
  });
  
  Namespace.reopenClass({
    NAMESPACES: [Ember],
    NAMESPACES_BY_ID: {},
    PROCESSED: false,
    processAll: processAllNamespaces,
    byName: function(name) {
      if (!Ember.BOOTED) {
        processAllNamespaces();
      }
  
      return NAMESPACES_BY_ID[name];
    }
  });
  
  var NAMESPACES_BY_ID = Namespace.NAMESPACES_BY_ID;
  
  var hasOwnProp = ({}).hasOwnProperty,
      guidFor = Ember.guidFor;
  
  function processNamespace(paths, root, seen) {
    var idx = paths.length;
  
    NAMESPACES_BY_ID[paths.join('.')] = root;
  
    // Loop over all of the keys in the namespace, looking for classes
    for(var key in root) {
      if (!hasOwnProp.call(root, key)) { continue; }
      var obj = root[key];
  
      // If we are processing the `Ember` namespace, for example, the
      // `paths` will start with `["Ember"]`. Every iteration through
      // the loop will update the **second** element of this list with
      // the key, so processing `Ember.View` will make the Array
      // `['Ember', 'View']`.
      paths[idx] = key;
  
      // If we have found an unprocessed class
      if (obj && obj.toString === classToString) {
        // Replace the class' `toString` with the dot-separated path
        // and set its `NAME_KEY`
        obj.toString = makeToString(paths.join('.'));
        obj[NAME_KEY] = paths.join('.');
  
      // Support nested namespaces
      } else if (obj && obj.isNamespace) {
        // Skip aliased namespaces
        if (seen[guidFor(obj)]) { continue; }
        seen[guidFor(obj)] = true;
  
        // Process the child namespace
        processNamespace(paths, obj, seen);
      }
    }
  
    paths.length = idx; // cut out last item
  }
  
  function findNamespaces() {
    var Namespace = Ember.Namespace, lookup = Ember.lookup, obj, isNamespace;
  
    if (Namespace.PROCESSED) { return; }
  
    for (var prop in lookup) {
      // These don't raise exceptions but can cause warnings
      if (prop === "parent" || prop === "top" || prop === "frameElement" || prop === "webkitStorageInfo") { continue; }
  
      //  get(window.globalStorage, 'isNamespace') would try to read the storage for domain isNamespace and cause exception in Firefox.
      // globalStorage is a storage obsoleted by the WhatWG storage specification. See https://developer.mozilla.org/en/DOM/Storage#globalStorage
      if (prop === "globalStorage" && lookup.StorageList && lookup.globalStorage instanceof lookup.StorageList) { continue; }
      // Unfortunately, some versions of IE don't support window.hasOwnProperty
      if (lookup.hasOwnProperty && !lookup.hasOwnProperty(prop)) { continue; }
  
      // At times we are not allowed to access certain properties for security reasons.
      // There are also times where even if we can access them, we are not allowed to access their properties.
      try {
        obj = Ember.lookup[prop];
        isNamespace = obj && obj.isNamespace;
      } catch (e) {
        continue;
      }
  
      if (isNamespace) {
        Ember.deprecate("Namespaces should not begin with lowercase.", /^[A-Z]/.test(prop));
        obj[NAME_KEY] = prop;
      }
    }
  }
  
  var NAME_KEY = Ember.NAME_KEY = Ember.GUID_KEY + '_name';
  
  function superClassString(mixin) {
    var superclass = mixin.superclass;
    if (superclass) {
      if (superclass[NAME_KEY]) { return superclass[NAME_KEY]; }
      else { return superClassString(superclass); }
    } else {
      return;
    }
  }
  
  function classToString() {
    if (!Ember.BOOTED && !this[NAME_KEY]) {
      processAllNamespaces();
    }
  
    var ret;
  
    if (this[NAME_KEY]) {
      ret = this[NAME_KEY];
    } else {
      var str = superClassString(this);
      if (str) {
        ret = "(subclass of " + str + ")";
      } else {
        ret = "(unknown mixin)";
      }
      this.toString = makeToString(ret);
    }
  
    return ret;
  }
  
  function processAllNamespaces() {
    var unprocessedNamespaces = !Namespace.PROCESSED,
        unprocessedMixins = Ember.anyUnprocessedMixins;
  
    if (unprocessedNamespaces) {
      findNamespaces();
      Namespace.PROCESSED = true;
    }
  
    if (unprocessedNamespaces || unprocessedMixins) {
      var namespaces = Namespace.NAMESPACES, namespace;
      for (var i=0, l=namespaces.length; i<l; i++) {
        namespace = namespaces[i];
        processNamespace([namespace.toString()], namespace, {});
      }
  
      Ember.anyUnprocessedMixins = false;
    }
  }
  
  function makeToString(ret) {
    return function() { return ret; };
  }
  
  Ember.Mixin.prototype.toString = classToString;
  
  })();
  
  
  
  (function() {
  Ember.Application = Ember.Namespace.extend();
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var OUT_OF_RANGE_EXCEPTION = "Index out of range";
  var EMPTY = [];
  
  var get = Ember.get, set = Ember.set;
  
  /**
    An ArrayProxy wraps any other object that implements `Ember.Array` and/or
    `Ember.MutableArray,` forwarding all requests. This makes it very useful for
    a number of binding use cases or other cases where being able to swap
    out the underlying array is useful.
  
    A simple example of usage:
  
    ```javascript
    var pets = ['dog', 'cat', 'fish'];
    var ap = Ember.ArrayProxy.create({ content: Ember.A(pets) });
  
    ap.get('firstObject');                        // 'dog'
    ap.set('content', ['amoeba', 'paramecium']);
    ap.get('firstObject');                        // 'amoeba'
    ```
  
    This class can also be useful as a layer to transform the contents of
    an array, as they are accessed. This can be done by overriding
    `objectAtContent`:
  
    ```javascript
    var pets = ['dog', 'cat', 'fish'];
    var ap = Ember.ArrayProxy.create({
        content: Ember.A(pets),
        objectAtContent: function(idx) {
            return this.get('content').objectAt(idx).toUpperCase();
        }
    });
  
    ap.get('firstObject'); // . 'DOG'
    ```
  
    @class ArrayProxy
    @namespace Ember
    @extends Ember.Object
    @uses Ember.MutableArray
  */
  Ember.ArrayProxy = Ember.Object.extend(Ember.MutableArray,/** @scope Ember.ArrayProxy.prototype */ {
  
    /**
      The content array. Must be an object that implements `Ember.Array` and/or
      `Ember.MutableArray.`
  
      @property content
      @type Ember.Array
    */
    content: null,
  
    /**
     The array that the proxy pretends to be. In the default `ArrayProxy`
     implementation, this and `content` are the same. Subclasses of `ArrayProxy`
     can override this property to provide things like sorting and filtering.
  
     @property arrangedContent
    */
    arrangedContent: Ember.computed.alias('content'),
  
    /**
      Should actually retrieve the object at the specified index from the
      content. You can override this method in subclasses to transform the
      content item to something new.
  
      This method will only be called if content is non-`null`.
  
      @method objectAtContent
      @param {Number} idx The index to retrieve.
      @return {Object} the value or undefined if none found
    */
    objectAtContent: function(idx) {
      return get(this, 'arrangedContent').objectAt(idx);
    },
  
    /**
      Should actually replace the specified objects on the content array.
      You can override this method in subclasses to transform the content item
      into something new.
  
      This method will only be called if content is non-`null`.
  
      @method replaceContent
      @param {Number} idx The starting index
      @param {Number} amt The number of items to remove from the content.
      @param {Array} objects Optional array of objects to insert or null if no
        objects.
      @return {void}
    */
    replaceContent: function(idx, amt, objects) {
      get(this, 'content').replace(idx, amt, objects);
    },
  
    /**
      @private
  
      Invoked when the content property is about to change. Notifies observers that the
      entire array content will change.
  
      @method _contentWillChange
    */
    _contentWillChange: Ember.beforeObserver(function() {
      this._teardownContent();
    }, 'content'),
  
    _teardownContent: function() {
      var content = get(this, 'content');
  
      if (content) {
        content.removeArrayObserver(this, {
          willChange: 'contentArrayWillChange',
          didChange: 'contentArrayDidChange'
        });
      }
    },
  
    contentArrayWillChange: Ember.K,
    contentArrayDidChange: Ember.K,
  
    /**
      @private
  
      Invoked when the content property changes. Notifies observers that the
      entire array content has changed.
  
      @method _contentDidChange
    */
    _contentDidChange: Ember.observer(function() {
      var content = get(this, 'content');
  
      Ember.assert("Can't set ArrayProxy's content to itself", content !== this);
  
      this._setupContent();
    }, 'content'),
  
    _setupContent: function() {
      var content = get(this, 'content');
  
      if (content) {
        content.addArrayObserver(this, {
          willChange: 'contentArrayWillChange',
          didChange: 'contentArrayDidChange'
        });
      }
    },
  
    _arrangedContentWillChange: Ember.beforeObserver(function() {
      var arrangedContent = get(this, 'arrangedContent'),
          len = arrangedContent ? get(arrangedContent, 'length') : 0;
  
      this.arrangedContentArrayWillChange(this, 0, len, undefined);
      this.arrangedContentWillChange(this);
  
      this._teardownArrangedContent(arrangedContent);
    }, 'arrangedContent'),
  
    _arrangedContentDidChange: Ember.observer(function() {
      var arrangedContent = get(this, 'arrangedContent'),
          len = arrangedContent ? get(arrangedContent, 'length') : 0;
  
      Ember.assert("Can't set ArrayProxy's content to itself", arrangedContent !== this);
  
      this._setupArrangedContent();
  
      this.arrangedContentDidChange(this);
      this.arrangedContentArrayDidChange(this, 0, undefined, len);
    }, 'arrangedContent'),
  
    _setupArrangedContent: function() {
      var arrangedContent = get(this, 'arrangedContent');
  
      if (arrangedContent) {
        arrangedContent.addArrayObserver(this, {
          willChange: 'arrangedContentArrayWillChange',
          didChange: 'arrangedContentArrayDidChange'
        });
      }
    },
  
    _teardownArrangedContent: function() {
      var arrangedContent = get(this, 'arrangedContent');
  
      if (arrangedContent) {
        arrangedContent.removeArrayObserver(this, {
          willChange: 'arrangedContentArrayWillChange',
          didChange: 'arrangedContentArrayDidChange'
        });
      }
    },
  
    arrangedContentWillChange: Ember.K,
    arrangedContentDidChange: Ember.K,
  
    objectAt: function(idx) {
      return get(this, 'content') && this.objectAtContent(idx);
    },
  
    length: Ember.computed(function() {
      var arrangedContent = get(this, 'arrangedContent');
      return arrangedContent ? get(arrangedContent, 'length') : 0;
      // No dependencies since Enumerable notifies length of change
    }),
  
    _replace: function(idx, amt, objects) {
      var content = get(this, 'content');
      Ember.assert('The content property of '+ this.constructor + ' should be set before modifying it', content);
      if (content) this.replaceContent(idx, amt, objects);
      return this;
    },
  
    replace: function() {
      if (get(this, 'arrangedContent') === get(this, 'content')) {
        this._replace.apply(this, arguments);
      } else {
        throw new Ember.Error("Using replace on an arranged ArrayProxy is not allowed.");
      }
    },
  
    _insertAt: function(idx, object) {
      if (idx > get(this, 'content.length')) throw new Error(OUT_OF_RANGE_EXCEPTION);
      this._replace(idx, 0, [object]);
      return this;
    },
  
    insertAt: function(idx, object) {
      if (get(this, 'arrangedContent') === get(this, 'content')) {
        return this._insertAt(idx, object);
      } else {
        throw new Ember.Error("Using insertAt on an arranged ArrayProxy is not allowed.");
      }
    },
  
    removeAt: function(start, len) {
      if ('number' === typeof start) {
        var content = get(this, 'content'),
            arrangedContent = get(this, 'arrangedContent'),
            indices = [], i;
  
        if ((start < 0) || (start >= get(this, 'length'))) {
          throw new Error(OUT_OF_RANGE_EXCEPTION);
        }
  
        if (len === undefined) len = 1;
  
        // Get a list of indices in original content to remove
        for (i=start; i<start+len; i++) {
          // Use arrangedContent here so we avoid confusion with objects transformed by objectAtContent
          indices.push(content.indexOf(arrangedContent.objectAt(i)));
        }
  
        // Replace in reverse order since indices will change
        indices.sort(function(a,b) { return b - a; });
  
        Ember.beginPropertyChanges();
        for (i=0; i<indices.length; i++) {
          this._replace(indices[i], 1, EMPTY);
        }
        Ember.endPropertyChanges();
      }
  
      return this ;
    },
  
    pushObject: function(obj) {
      this._insertAt(get(this, 'content.length'), obj) ;
      return obj ;
    },
  
    pushObjects: function(objects) {
      this._replace(get(this, 'length'), 0, objects);
      return this;
    },
  
    setObjects: function(objects) {
      if (objects.length === 0) return this.clear();
  
      var len = get(this, 'length');
      this._replace(0, len, objects);
      return this;
    },
  
    unshiftObject: function(obj) {
      this._insertAt(0, obj) ;
      return obj ;
    },
  
    unshiftObjects: function(objects) {
      this._replace(0, 0, objects);
      return this;
    },
  
    slice: function() {
      var arr = this.toArray();
      return arr.slice.apply(arr, arguments);
    },
  
    arrangedContentArrayWillChange: function(item, idx, removedCnt, addedCnt) {
      this.arrayContentWillChange(idx, removedCnt, addedCnt);
    },
  
    arrangedContentArrayDidChange: function(item, idx, removedCnt, addedCnt) {
      this.arrayContentDidChange(idx, removedCnt, addedCnt);
    },
  
    init: function() {
      this._super();
      this._setupContent();
      this._setupArrangedContent();
    },
  
    willDestroy: function() {
      this._teardownArrangedContent();
      this._teardownContent();
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var get = Ember.get,
      set = Ember.set,
      fmt = Ember.String.fmt,
      addBeforeObserver = Ember.addBeforeObserver,
      addObserver = Ember.addObserver,
      removeBeforeObserver = Ember.removeBeforeObserver,
      removeObserver = Ember.removeObserver,
      propertyWillChange = Ember.propertyWillChange,
      propertyDidChange = Ember.propertyDidChange;
  
  function contentPropertyWillChange(content, contentKey) {
    var key = contentKey.slice(8); // remove "content."
    if (key in this) { return; }  // if shadowed in proxy
    propertyWillChange(this, key);
  }
  
  function contentPropertyDidChange(content, contentKey) {
    var key = contentKey.slice(8); // remove "content."
    if (key in this) { return; } // if shadowed in proxy
    propertyDidChange(this, key);
  }
  
  /**
    `Ember.ObjectProxy` forwards all properties not defined by the proxy itself
    to a proxied `content` object.
  
    ```javascript
    object = Ember.Object.create({
      name: 'Foo'
    });
  
    proxy = Ember.ObjectProxy.create({
      content: object
    });
  
    // Access and change existing properties
    proxy.get('name')          // 'Foo'
    proxy.set('name', 'Bar');
    object.get('name')         // 'Bar'
  
    // Create new 'description' property on `object`
    proxy.set('description', 'Foo is a whizboo baz');
    object.get('description')  // 'Foo is a whizboo baz'
    ```
  
    While `content` is unset, setting a property to be delegated will throw an
    Error.
  
    ```javascript
    proxy = Ember.ObjectProxy.create({
      content: null,
      flag: null
    });
    proxy.set('flag', true);
    proxy.get('flag');         // true
    proxy.get('foo');          // undefined
    proxy.set('foo', 'data');  // throws Error
    ```
  
    Delegated properties can be bound to and will change when content is updated.
  
    Computed properties on the proxy itself can depend on delegated properties.
  
    ```javascript
    ProxyWithComputedProperty = Ember.ObjectProxy.extend({
      fullName: function () {
        var firstName = this.get('firstName'),
            lastName = this.get('lastName');
        if (firstName && lastName) {
          return firstName + ' ' + lastName;
        }
        return firstName || lastName;
      }.property('firstName', 'lastName')
    });
  
    proxy = ProxyWithComputedProperty.create();
  
    proxy.get('fullName');  // undefined
    proxy.set('content', {
      firstName: 'Tom', lastName: 'Dale'
    }); // triggers property change for fullName on proxy
  
    proxy.get('fullName');  // 'Tom Dale'
    ```
  
    @class ObjectProxy
    @namespace Ember
    @extends Ember.Object
  */
  Ember.ObjectProxy = Ember.Object.extend(/** @scope Ember.ObjectProxy.prototype */ {
    /**
      The object whose properties will be forwarded.
  
      @property content
      @type Ember.Object
      @default null
    */
    content: null,
    _contentDidChange: Ember.observer(function() {
      Ember.assert("Can't set ObjectProxy's content to itself", this.get('content') !== this);
    }, 'content'),
  
    isTruthy: Ember.computed.bool('content'),
  
    _debugContainerKey: null,
  
    willWatchProperty: function (key) {
      var contentKey = 'content.' + key;
      addBeforeObserver(this, contentKey, null, contentPropertyWillChange);
      addObserver(this, contentKey, null, contentPropertyDidChange);
    },
  
    didUnwatchProperty: function (key) {
      var contentKey = 'content.' + key;
      removeBeforeObserver(this, contentKey, null, contentPropertyWillChange);
      removeObserver(this, contentKey, null, contentPropertyDidChange);
    },
  
    unknownProperty: function (key) {
      var content = get(this, 'content');
      if (content) {
        return get(content, key);
      }
    },
  
    setUnknownProperty: function (key, value) {
      var content = get(this, 'content');
      Ember.assert(fmt("Cannot delegate set('%@', %@) to the 'content' property of object proxy %@: its 'content' is undefined.", [key, value, this]), content);
      return set(content, key, value);
    }
  });
  
  Ember.ObjectProxy.reopenClass({
    create: function () {
      var mixin, prototype, i, l, properties, keyName;
      if (arguments.length) {
        prototype = this.proto();
        for (i = 0, l = arguments.length; i < l; i++) {
          properties = arguments[i];
          for (keyName in properties) {
            if (!properties.hasOwnProperty(keyName) || keyName in prototype) { continue; }
            if (!mixin) mixin = {};
            mixin[keyName] = null;
          }
        }
        if (mixin) this._initMixins([mixin]);
      }
      return this._super.apply(this, arguments);
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  
  var set = Ember.set, get = Ember.get, guidFor = Ember.guidFor;
  var forEach = Ember.EnumerableUtils.forEach;
  
  var EachArray = Ember.Object.extend(Ember.Array, {
  
    init: function(content, keyName, owner) {
      this._super();
      this._keyName = keyName;
      this._owner   = owner;
      this._content = content;
    },
  
    objectAt: function(idx) {
      var item = this._content.objectAt(idx);
      return item && get(item, this._keyName);
    },
  
    length: Ember.computed(function() {
      var content = this._content;
      return content ? get(content, 'length') : 0;
    })
  
  });
  
  var IS_OBSERVER = /^.+:(before|change)$/;
  
  function addObserverForContentKey(content, keyName, proxy, idx, loc) {
    var objects = proxy._objects, guid;
    if (!objects) objects = proxy._objects = {};
  
    while(--loc>=idx) {
      var item = content.objectAt(loc);
      if (item) {
        Ember.addBeforeObserver(item, keyName, proxy, 'contentKeyWillChange');
        Ember.addObserver(item, keyName, proxy, 'contentKeyDidChange');
  
        // keep track of the index each item was found at so we can map
        // it back when the obj changes.
        guid = guidFor(item);
        if (!objects[guid]) objects[guid] = [];
        objects[guid].push(loc);
      }
    }
  }
  
  function removeObserverForContentKey(content, keyName, proxy, idx, loc) {
    var objects = proxy._objects;
    if (!objects) objects = proxy._objects = {};
    var indicies, guid;
  
    while(--loc>=idx) {
      var item = content.objectAt(loc);
      if (item) {
        Ember.removeBeforeObserver(item, keyName, proxy, 'contentKeyWillChange');
        Ember.removeObserver(item, keyName, proxy, 'contentKeyDidChange');
  
        guid = guidFor(item);
        indicies = objects[guid];
        indicies[indicies.indexOf(loc)] = null;
      }
    }
  }
  
  /**
    This is the object instance returned when you get the `@each` property on an
    array. It uses the unknownProperty handler to automatically create
    EachArray instances for property names.
  
    @private
    @class EachProxy
    @namespace Ember
    @extends Ember.Object
  */
  Ember.EachProxy = Ember.Object.extend({
  
    init: function(content) {
      this._super();
      this._content = content;
      content.addArrayObserver(this);
  
      // in case someone is already observing some keys make sure they are
      // added
      forEach(Ember.watchedEvents(this), function(eventName) {
        this.didAddListener(eventName);
      }, this);
    },
  
    /**
      You can directly access mapped properties by simply requesting them.
      The `unknownProperty` handler will generate an EachArray of each item.
  
      @method unknownProperty
      @param keyName {String}
      @param value {*}
    */
    unknownProperty: function(keyName, value) {
      var ret;
      ret = new EachArray(this._content, keyName, this);
      Ember.defineProperty(this, keyName, null, ret);
      this.beginObservingContentKey(keyName);
      return ret;
    },
  
    // ..........................................................
    // ARRAY CHANGES
    // Invokes whenever the content array itself changes.
  
    arrayWillChange: function(content, idx, removedCnt, addedCnt) {
      var keys = this._keys, key, lim;
  
      lim = removedCnt>0 ? idx+removedCnt : -1;
      Ember.beginPropertyChanges(this);
  
      for(key in keys) {
        if (!keys.hasOwnProperty(key)) { continue; }
  
        if (lim>0) removeObserverForContentKey(content, key, this, idx, lim);
  
        Ember.propertyWillChange(this, key);
      }
  
      Ember.propertyWillChange(this._content, '@each');
      Ember.endPropertyChanges(this);
    },
  
    arrayDidChange: function(content, idx, removedCnt, addedCnt) {
      var keys = this._keys, key, lim;
  
      lim = addedCnt>0 ? idx+addedCnt : -1;
      Ember.beginPropertyChanges(this);
  
      for(key in keys) {
        if (!keys.hasOwnProperty(key)) { continue; }
  
        if (lim>0) addObserverForContentKey(content, key, this, idx, lim);
  
        Ember.propertyDidChange(this, key);
      }
  
      Ember.propertyDidChange(this._content, '@each');
      Ember.endPropertyChanges(this);
    },
  
    // ..........................................................
    // LISTEN FOR NEW OBSERVERS AND OTHER EVENT LISTENERS
    // Start monitoring keys based on who is listening...
  
    didAddListener: function(eventName) {
      if (IS_OBSERVER.test(eventName)) {
        this.beginObservingContentKey(eventName.slice(0, -7));
      }
    },
  
    didRemoveListener: function(eventName) {
      if (IS_OBSERVER.test(eventName)) {
        this.stopObservingContentKey(eventName.slice(0, -7));
      }
    },
  
    // ..........................................................
    // CONTENT KEY OBSERVING
    // Actual watch keys on the source content.
  
    beginObservingContentKey: function(keyName) {
      var keys = this._keys;
      if (!keys) keys = this._keys = {};
      if (!keys[keyName]) {
        keys[keyName] = 1;
        var content = this._content,
            len = get(content, 'length');
        addObserverForContentKey(content, keyName, this, 0, len);
      } else {
        keys[keyName]++;
      }
    },
  
    stopObservingContentKey: function(keyName) {
      var keys = this._keys;
      if (keys && (keys[keyName]>0) && (--keys[keyName]<=0)) {
        var content = this._content,
            len     = get(content, 'length');
        removeObserverForContentKey(content, keyName, this, 0, len);
      }
    },
  
    contentKeyWillChange: function(obj, keyName) {
      Ember.propertyWillChange(this, keyName);
    },
  
    contentKeyDidChange: function(obj, keyName) {
      Ember.propertyDidChange(this, keyName);
    }
  
  });
  
  
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  
  var get = Ember.get, set = Ember.set;
  
  // Add Ember.Array to Array.prototype. Remove methods with native
  // implementations and supply some more optimized versions of generic methods
  // because they are so common.
  var NativeArray = Ember.Mixin.create(Ember.MutableArray, Ember.Observable, Ember.Copyable, {
  
    // because length is a built-in property we need to know to just get the
    // original property.
    get: function(key) {
      if (key==='length') return this.length;
      else if ('number' === typeof key) return this[key];
      else return this._super(key);
    },
  
    objectAt: function(idx) {
      return this[idx];
    },
  
    // primitive for array support.
    replace: function(idx, amt, objects) {
  
      if (this.isFrozen) throw Ember.FROZEN_ERROR ;
  
      // if we replaced exactly the same number of items, then pass only the
      // replaced range. Otherwise, pass the full remaining array length
      // since everything has shifted
      var len = objects ? get(objects, 'length') : 0;
      this.arrayContentWillChange(idx, amt, len);
  
      if (!objects || objects.length === 0) {
        this.splice(idx, amt) ;
      } else {
        var args = [idx, amt].concat(objects) ;
        this.splice.apply(this,args) ;
      }
  
      this.arrayContentDidChange(idx, amt, len);
      return this ;
    },
  
    // If you ask for an unknown property, then try to collect the value
    // from member items.
    unknownProperty: function(key, value) {
      var ret;// = this.reducedProperty(key, value) ;
      if ((value !== undefined) && ret === undefined) {
        ret = this[key] = value;
      }
      return ret ;
    },
  
    // If browser did not implement indexOf natively, then override with
    // specialized version
    indexOf: function(object, startAt) {
      var idx, len = this.length;
  
      if (startAt === undefined) startAt = 0;
      else startAt = (startAt < 0) ? Math.ceil(startAt) : Math.floor(startAt);
      if (startAt < 0) startAt += len;
  
      for(idx=startAt;idx<len;idx++) {
        if (this[idx] === object) return idx ;
      }
      return -1;
    },
  
    lastIndexOf: function(object, startAt) {
      var idx, len = this.length;
  
      if (startAt === undefined) startAt = len-1;
      else startAt = (startAt < 0) ? Math.ceil(startAt) : Math.floor(startAt);
      if (startAt < 0) startAt += len;
  
      for(idx=startAt;idx>=0;idx--) {
        if (this[idx] === object) return idx ;
      }
      return -1;
    },
  
    copy: function(deep) {
      if (deep) {
        return this.map(function(item){ return Ember.copy(item, true); });
      }
  
      return this.slice();
    }
  });
  
  // Remove any methods implemented natively so we don't override them
  var ignore = ['length'];
  Ember.EnumerableUtils.forEach(NativeArray.keys(), function(methodName) {
    if (Array.prototype[methodName]) ignore.push(methodName);
  });
  
  if (ignore.length>0) {
    NativeArray = NativeArray.without.apply(NativeArray, ignore);
  }
  
  /**
    The NativeArray mixin contains the properties needed to to make the native
    Array support Ember.MutableArray and all of its dependent APIs. Unless you
    have `Ember.EXTEND_PROTOTYPES` or `Ember.EXTEND_PROTOTYPES.Array` set to
    false, this will be applied automatically. Otherwise you can apply the mixin
    at anytime by calling `Ember.NativeArray.activate`.
  
    @class NativeArray
    @namespace Ember
    @extends Ember.Mixin
    @uses Ember.MutableArray
    @uses Ember.Observable
    @uses Ember.Copyable
  */
  Ember.NativeArray = NativeArray;
  
  /**
    Creates an `Ember.NativeArray` from an Array like object.
    Does not modify the original object.
  
    @method A
    @for Ember
    @return {Ember.NativeArray}
  */
  Ember.A = function(arr){
    if (arr === undefined) { arr = []; }
    return Ember.Array.detect(arr) ? arr : Ember.NativeArray.apply(arr);
  };
  
  /**
    Activates the mixin on the Array.prototype if not already applied. Calling
    this method more than once is safe.
  
    @method activate
    @for Ember.NativeArray
    @static
    @return {void}
  */
  Ember.NativeArray.activate = function() {
    NativeArray.apply(Array.prototype);
  
    Ember.A = function(arr) { return arr || []; };
  };
  
  if (Ember.EXTEND_PROTOTYPES === true || Ember.EXTEND_PROTOTYPES.Array) {
    Ember.NativeArray.activate();
  }
  
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var get = Ember.get, set = Ember.set, guidFor = Ember.guidFor, isNone = Ember.isNone, fmt = Ember.String.fmt;
  
  /**
    An unordered collection of objects.
  
    A Set works a bit like an array except that its items are not ordered. You
    can create a set to efficiently test for membership for an object. You can
    also iterate through a set just like an array, even accessing objects by
    index, however there is no guarantee as to their order.
  
    All Sets are observable via the Enumerable Observer API - which works
    on any enumerable object including both Sets and Arrays.
  
    ## Creating a Set
  
    You can create a set like you would most objects using
    `new Ember.Set()`. Most new sets you create will be empty, but you can
    also initialize the set with some content by passing an array or other
    enumerable of objects to the constructor.
  
    Finally, you can pass in an existing set and the set will be copied. You
    can also create a copy of a set by calling `Ember.Set#copy()`.
  
    ```javascript
    // creates a new empty set
    var foundNames = new Ember.Set();
  
    // creates a set with four names in it.
    var names = new Ember.Set(["Charles", "Tom", "Juan", "Alex"]); // :P
  
    // creates a copy of the names set.
    var namesCopy = new Ember.Set(names);
  
    // same as above.
    var anotherNamesCopy = names.copy();
    ```
  
    ## Adding/Removing Objects
  
    You generally add or remove objects from a set using `add()` or
    `remove()`. You can add any type of object including primitives such as
    numbers, strings, and booleans.
  
    Unlike arrays, objects can only exist one time in a set. If you call `add()`
    on a set with the same object multiple times, the object will only be added
    once. Likewise, calling `remove()` with the same object multiple times will
    remove the object the first time and have no effect on future calls until
    you add the object to the set again.
  
    NOTE: You cannot add/remove `null` or `undefined` to a set. Any attempt to do
    so will be ignored.
  
    In addition to add/remove you can also call `push()`/`pop()`. Push behaves
    just like `add()` but `pop()`, unlike `remove()` will pick an arbitrary
    object, remove it and return it. This is a good way to use a set as a job
    queue when you don't care which order the jobs are executed in.
  
    ## Testing for an Object
  
    To test for an object's presence in a set you simply call
    `Ember.Set#contains()`.
  
    ## Observing changes
  
    When using `Ember.Set`, you can observe the `"[]"` property to be
    alerted whenever the content changes. You can also add an enumerable
    observer to the set to be notified of specific objects that are added and
    removed from the set. See `Ember.Enumerable` for more information on
    enumerables.
  
    This is often unhelpful. If you are filtering sets of objects, for instance,
    it is very inefficient to re-filter all of the items each time the set
    changes. It would be better if you could just adjust the filtered set based
    on what was changed on the original set. The same issue applies to merging
    sets, as well.
  
    ## Other Methods
  
    `Ember.Set` primary implements other mixin APIs. For a complete reference
    on the methods you will use with `Ember.Set`, please consult these mixins.
    The most useful ones will be `Ember.Enumerable` and
    `Ember.MutableEnumerable` which implement most of the common iterator
    methods you are used to on Array.
  
    Note that you can also use the `Ember.Copyable` and `Ember.Freezable`
    APIs on `Ember.Set` as well. Once a set is frozen it can no longer be
    modified. The benefit of this is that when you call `frozenCopy()` on it,
    Ember will avoid making copies of the set. This allows you to write
    code that can know with certainty when the underlying set data will or
    will not be modified.
  
    @class Set
    @namespace Ember
    @extends Ember.CoreObject
    @uses Ember.MutableEnumerable
    @uses Ember.Copyable
    @uses Ember.Freezable
    @since Ember 0.9
  */
  Ember.Set = Ember.CoreObject.extend(Ember.MutableEnumerable, Ember.Copyable, Ember.Freezable,
    /** @scope Ember.Set.prototype */ {
  
    // ..........................................................
    // IMPLEMENT ENUMERABLE APIS
    //
  
    /**
      This property will change as the number of objects in the set changes.
  
      @property length
      @type number
      @default 0
    */
    length: 0,
  
    /**
      Clears the set. This is useful if you want to reuse an existing set
      without having to recreate it.
  
      ```javascript
      var colors = new Ember.Set(["red", "green", "blue"]);
      colors.length;  // 3
      colors.clear();
      colors.length;  // 0
      ```
  
      @method clear
      @return {Ember.Set} An empty Set
    */
    clear: function() {
      if (this.isFrozen) { throw new Error(Ember.FROZEN_ERROR); }
  
      var len = get(this, 'length');
      if (len === 0) { return this; }
  
      var guid;
  
      this.enumerableContentWillChange(len, 0);
      Ember.propertyWillChange(this, 'firstObject');
      Ember.propertyWillChange(this, 'lastObject');
  
      for (var i=0; i < len; i++){
        guid = guidFor(this[i]);
        delete this[guid];
        delete this[i];
      }
  
      set(this, 'length', 0);
  
      Ember.propertyDidChange(this, 'firstObject');
      Ember.propertyDidChange(this, 'lastObject');
      this.enumerableContentDidChange(len, 0);
  
      return this;
    },
  
    /**
      Returns true if the passed object is also an enumerable that contains the
      same objects as the receiver.
  
      ```javascript
      var colors = ["red", "green", "blue"],
          same_colors = new Ember.Set(colors);
  
      same_colors.isEqual(colors);               // true
      same_colors.isEqual(["purple", "brown"]);  // false
      ```
  
      @method isEqual
      @param {Ember.Set} obj the other object.
      @return {Boolean}
    */
    isEqual: function(obj) {
      // fail fast
      if (!Ember.Enumerable.detect(obj)) return false;
  
      var loc = get(this, 'length');
      if (get(obj, 'length') !== loc) return false;
  
      while(--loc >= 0) {
        if (!obj.contains(this[loc])) return false;
      }
  
      return true;
    },
  
    /**
      Adds an object to the set. Only non-`null` objects can be added to a set
      and those can only be added once. If the object is already in the set or
      the passed value is null this method will have no effect.
  
      This is an alias for `Ember.MutableEnumerable.addObject()`.
  
      ```javascript
      var colors = new Ember.Set();
      colors.add("blue");     // ["blue"]
      colors.add("blue");     // ["blue"]
      colors.add("red");      // ["blue", "red"]
      colors.add(null);       // ["blue", "red"]
      colors.add(undefined);  // ["blue", "red"]
      ```
  
      @method add
      @param {Object} obj The object to add.
      @return {Ember.Set} The set itself.
    */
    add: Ember.aliasMethod('addObject'),
  
    /**
      Removes the object from the set if it is found. If you pass a `null` value
      or an object that is already not in the set, this method will have no
      effect. This is an alias for `Ember.MutableEnumerable.removeObject()`.
  
      ```javascript
      var colors = new Ember.Set(["red", "green", "blue"]);
      colors.remove("red");     // ["blue", "green"]
      colors.remove("purple");  // ["blue", "green"]
      colors.remove(null);      // ["blue", "green"]
      ```
  
      @method remove
      @param {Object} obj The object to remove
      @return {Ember.Set} The set itself.
    */
    remove: Ember.aliasMethod('removeObject'),
  
    /**
      Removes the last element from the set and returns it, or `null` if it's empty.
  
      ```javascript
      var colors = new Ember.Set(["green", "blue"]);
      colors.pop();  // "blue"
      colors.pop();  // "green"
      colors.pop();  // null
      ```
  
      @method pop
      @return {Object} The removed object from the set or null.
    */
    pop: function() {
      if (get(this, 'isFrozen')) throw new Error(Ember.FROZEN_ERROR);
      var obj = this.length > 0 ? this[this.length-1] : null;
      this.remove(obj);
      return obj;
    },
  
    /**
      Inserts the given object on to the end of the set. It returns
      the set itself.
  
      This is an alias for `Ember.MutableEnumerable.addObject()`.
  
      ```javascript
      var colors = new Ember.Set();
      colors.push("red");   // ["red"]
      colors.push("green"); // ["red", "green"]
      colors.push("blue");  // ["red", "green", "blue"]
      ```
  
      @method push
      @return {Ember.Set} The set itself.
    */
    push: Ember.aliasMethod('addObject'),
  
    /**
      Removes the last element from the set and returns it, or `null` if it's empty.
  
      This is an alias for `Ember.Set.pop()`.
  
      ```javascript
      var colors = new Ember.Set(["green", "blue"]);
      colors.shift();  // "blue"
      colors.shift();  // "green"
      colors.shift();  // null
      ```
  
      @method shift
      @return {Object} The removed object from the set or null.
    */
    shift: Ember.aliasMethod('pop'),
  
    /**
      Inserts the given object on to the end of the set. It returns
      the set itself.
  
      This is an alias of `Ember.Set.push()`
  
      ```javascript
      var colors = new Ember.Set();
      colors.unshift("red");    // ["red"]
      colors.unshift("green");  // ["red", "green"]
      colors.unshift("blue");   // ["red", "green", "blue"]
      ```
  
      @method unshift
      @return {Ember.Set} The set itself.
    */
    unshift: Ember.aliasMethod('push'),
  
    /**
      Adds each object in the passed enumerable to the set.
  
      This is an alias of `Ember.MutableEnumerable.addObjects()`
  
      ```javascript
      var colors = new Ember.Set();
      colors.addEach(["red", "green", "blue"]);  // ["red", "green", "blue"]
      ```
  
      @method addEach
      @param {Ember.Enumerable} objects the objects to add.
      @return {Ember.Set} The set itself.
    */
    addEach: Ember.aliasMethod('addObjects'),
  
    /**
      Removes each object in the passed enumerable to the set.
  
      This is an alias of `Ember.MutableEnumerable.removeObjects()`
  
      ```javascript
      var colors = new Ember.Set(["red", "green", "blue"]);
      colors.removeEach(["red", "blue"]);  //  ["green"]
      ```
  
      @method removeEach
      @param {Ember.Enumerable} objects the objects to remove.
      @return {Ember.Set} The set itself.
    */
    removeEach: Ember.aliasMethod('removeObjects'),
  
    // ..........................................................
    // PRIVATE ENUMERABLE SUPPORT
    //
  
    init: function(items) {
      this._super();
      if (items) this.addObjects(items);
    },
  
    // implement Ember.Enumerable
    nextObject: function(idx) {
      return this[idx];
    },
  
    // more optimized version
    firstObject: Ember.computed(function() {
      return this.length > 0 ? this[0] : undefined;
    }),
  
    // more optimized version
    lastObject: Ember.computed(function() {
      return this.length > 0 ? this[this.length-1] : undefined;
    }),
  
    // implements Ember.MutableEnumerable
    addObject: function(obj) {
      if (get(this, 'isFrozen')) throw new Error(Ember.FROZEN_ERROR);
      if (isNone(obj)) return this; // nothing to do
  
      var guid = guidFor(obj),
          idx  = this[guid],
          len  = get(this, 'length'),
          added ;
  
      if (idx>=0 && idx<len && (this[idx] === obj)) return this; // added
  
      added = [obj];
  
      this.enumerableContentWillChange(null, added);
      Ember.propertyWillChange(this, 'lastObject');
  
      len = get(this, 'length');
      this[guid] = len;
      this[len] = obj;
      set(this, 'length', len+1);
  
      Ember.propertyDidChange(this, 'lastObject');
      this.enumerableContentDidChange(null, added);
  
      return this;
    },
  
    // implements Ember.MutableEnumerable
    removeObject: function(obj) {
      if (get(this, 'isFrozen')) throw new Error(Ember.FROZEN_ERROR);
      if (isNone(obj)) return this; // nothing to do
  
      var guid = guidFor(obj),
          idx  = this[guid],
          len = get(this, 'length'),
          isFirst = idx === 0,
          isLast = idx === len-1,
          last, removed;
  
  
      if (idx>=0 && idx<len && (this[idx] === obj)) {
        removed = [obj];
  
        this.enumerableContentWillChange(removed, null);
        if (isFirst) { Ember.propertyWillChange(this, 'firstObject'); }
        if (isLast)  { Ember.propertyWillChange(this, 'lastObject'); }
  
        // swap items - basically move the item to the end so it can be removed
        if (idx < len-1) {
          last = this[len-1];
          this[idx] = last;
          this[guidFor(last)] = idx;
        }
  
        delete this[guid];
        delete this[len-1];
        set(this, 'length', len-1);
  
        if (isFirst) { Ember.propertyDidChange(this, 'firstObject'); }
        if (isLast)  { Ember.propertyDidChange(this, 'lastObject'); }
        this.enumerableContentDidChange(removed, null);
      }
  
      return this;
    },
  
    // optimized version
    contains: function(obj) {
      return this[guidFor(obj)]>=0;
    },
  
    copy: function() {
      var C = this.constructor, ret = new C(), loc = get(this, 'length');
      set(ret, 'length', loc);
      while(--loc>=0) {
        ret[loc] = this[loc];
        ret[guidFor(this[loc])] = loc;
      }
      return ret;
    },
  
    toString: function() {
      var len = this.length, idx, array = [];
      for(idx = 0; idx < len; idx++) {
        array[idx] = this[idx];
      }
      return fmt("Ember.Set<%@>", [array.join(',')]);
    }
  
  });
  
  })();
  
  
  
  (function() {
  var DeferredMixin = Ember.DeferredMixin, // mixins/deferred
      get = Ember.get;
  
  var Deferred = Ember.Object.extend(DeferredMixin);
  
  Deferred.reopenClass({
    promise: function(callback, binding) {
      var deferred = Deferred.create();
      callback.call(binding, deferred);
      return deferred;
    }
  });
  
  Ember.Deferred = Deferred;
  
  })();
  
  
  
  (function() {
  var forEach = Ember.ArrayPolyfills.forEach;
  
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var loadHooks = Ember.ENV.EMBER_LOAD_HOOKS || {};
  var loaded = {};
  
  /**
  @method onLoad
  @for Ember
  @param name {String} name of hook
  @param callback {Function} callback to be called
  */
  Ember.onLoad = function(name, callback) {
    var object;
  
    loadHooks[name] = loadHooks[name] || Ember.A();
    loadHooks[name].pushObject(callback);
  
    if (object = loaded[name]) {
      callback(object);
    }
  };
  
  /**
  @method runLoadHooks
  @for Ember
  @param name {String} name of hook
  @param object {Object} object to pass to callbacks
  */
  Ember.runLoadHooks = function(name, object) {
    loaded[name] = object;
  
    if (loadHooks[name]) {
      forEach.call(loadHooks[name], function(callback) {
        callback(object);
      });
    }
  };
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  var get = Ember.get;
  
  /**
  @module ember
  @submodule ember-runtime
  */
  
  /**
    `Ember.ControllerMixin` provides a standard interface for all classes that
    compose Ember's controller layer: `Ember.Controller`,
    `Ember.ArrayController`, and `Ember.ObjectController`.
  
    Within an `Ember.Router`-managed application single shared instaces of every
    Controller object in your application's namespace will be added to the
    application's `Ember.Router` instance. See `Ember.Application#initialize`
    for additional information.
  
    ## Views
  
    By default a controller instance will be the rendering context
    for its associated `Ember.View.` This connection is made during calls to
    `Ember.ControllerMixin#connectOutlet`.
  
    Within the view's template, the `Ember.View` instance can be accessed
    through the controller with `{{view}}`.
  
    ## Target Forwarding
  
    By default a controller will target your application's `Ember.Router`
    instance. Calls to `{{action}}` within the template of a controller's view
    are forwarded to the router. See `Ember.Handlebars.helpers.action` for
    additional information.
  
    @class ControllerMixin
    @namespace Ember
    @extends Ember.Mixin
  */
  Ember.ControllerMixin = Ember.Mixin.create({
    /* ducktype as a controller */
    isController: true,
  
    /**
      The object to which events from the view should be sent.
  
      For example, when a Handlebars template uses the `{{action}}` helper,
      it will attempt to send the event to the view's controller's `target`.
  
      By default, a controller's `target` is set to the router after it is
      instantiated by `Ember.Application#initialize`.
  
      @property target
      @default null
    */
    target: null,
  
    container: null,
  
    parentController: null,
  
    store: null,
  
    model: Ember.computed.alias('content'),
  
    send: function(actionName) {
      var args = [].slice.call(arguments, 1), target;
  
      if (this[actionName]) {
        Ember.assert("The controller " + this + " does not have the action " + actionName, typeof this[actionName] === 'function');
        this[actionName].apply(this, args);
      } else if(target = get(this, 'target')) {
        Ember.assert("The target for controller " + this + " (" + target + ") did not define a `send` method", typeof target.send === 'function');
        target.send.apply(target, arguments);
      }
    }
  });
  
  /**
    @class Controller
    @namespace Ember
    @extends Ember.Object
    @uses Ember.ControllerMixin
  */
  Ember.Controller = Ember.Object.extend(Ember.ControllerMixin);
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var get = Ember.get, set = Ember.set, forEach = Ember.EnumerableUtils.forEach;
  
  /**
    `Ember.SortableMixin` provides a standard interface for array proxies
    to specify a sort order and maintain this sorting when objects are added,
    removed, or updated without changing the implicit order of their underlying
    content array:
  
    ```javascript
    songs = [
      {trackNumber: 4, title: 'Ob-La-Di, Ob-La-Da'},
      {trackNumber: 2, title: 'Back in the U.S.S.R.'},
      {trackNumber: 3, title: 'Glass Onion'},
    ];
  
    songsController = Ember.ArrayController.create({
      content: songs,
      sortProperties: ['trackNumber'],
      sortAscending: true
    });
  
    songsController.get('firstObject');  // {trackNumber: 2, title: 'Back in the U.S.S.R.'}
  
    songsController.addObject({trackNumber: 1, title: 'Dear Prudence'});
    songsController.get('firstObject');  // {trackNumber: 1, title: 'Dear Prudence'}
    ```
  
    @class SortableMixin
    @namespace Ember
    @extends Ember.Mixin
    @uses Ember.MutableEnumerable
  */
  Ember.SortableMixin = Ember.Mixin.create(Ember.MutableEnumerable, {
  
    /**
      Specifies which properties dictate the arrangedContent's sort order.
  
      @property {Array} sortProperties
    */
    sortProperties: null,
  
    /**
      Specifies the arrangedContent's sort direction
  
      @property {Boolean} sortAscending
    */
    sortAscending: true,
  
    /**
      The function used to compare two values. You can override this if you
      want to do custom comparisons.Functions must be of the type expected by
      Array#sort, i.e.
        return 0 if the two parameters are equal,
        return a negative value if the first parameter is smaller than the second or
        return a positive value otherwise:
  
      ```javascript
      function(x,y){ // These are assumed to be integers
        if(x === y)
          return 0;
        return x < y ? -1 : 1;
      }
      ```
  
      @property sortFunction
      @type {Function}
      @default Ember.compare
    */
    sortFunction: Ember.compare,
  
    orderBy: function(item1, item2) {
      var result = 0,
          sortProperties = get(this, 'sortProperties'),
          sortAscending = get(this, 'sortAscending'),
          sortFunction = get(this, 'sortFunction');
  
      Ember.assert("you need to define `sortProperties`", !!sortProperties);
  
      forEach(sortProperties, function(propertyName) {
        if (result === 0) {
          result = sortFunction(get(item1, propertyName), get(item2, propertyName));
          if ((result !== 0) && !sortAscending) {
            result = (-1) * result;
          }
        }
      });
  
      return result;
    },
  
    destroy: function() {
      var content = get(this, 'content'),
          sortProperties = get(this, 'sortProperties');
  
      if (content && sortProperties) {
        forEach(content, function(item) {
          forEach(sortProperties, function(sortProperty) {
            Ember.removeObserver(item, sortProperty, this, 'contentItemSortPropertyDidChange');
          }, this);
        }, this);
      }
  
      return this._super();
    },
  
    isSorted: Ember.computed.bool('sortProperties'),
  
    arrangedContent: Ember.computed('content', 'sortProperties.@each', function(key, value) {
      var content = get(this, 'content'),
          isSorted = get(this, 'isSorted'),
          sortProperties = get(this, 'sortProperties'),
          self = this;
  
      if (content && isSorted) {
        content = content.slice();
        content.sort(function(item1, item2) {
          return self.orderBy(item1, item2);
        });
        forEach(content, function(item) {
          forEach(sortProperties, function(sortProperty) {
            Ember.addObserver(item, sortProperty, this, 'contentItemSortPropertyDidChange');
          }, this);
        }, this);
        return Ember.A(content);
      }
  
      return content;
    }),
  
    _contentWillChange: Ember.beforeObserver(function() {
      var content = get(this, 'content'),
          sortProperties = get(this, 'sortProperties');
  
      if (content && sortProperties) {
        forEach(content, function(item) {
          forEach(sortProperties, function(sortProperty) {
            Ember.removeObserver(item, sortProperty, this, 'contentItemSortPropertyDidChange');
          }, this);
        }, this);
      }
  
      this._super();
    }, 'content'),
  
    sortAscendingWillChange: Ember.beforeObserver(function() {
      this._lastSortAscending = get(this, 'sortAscending');
    }, 'sortAscending'),
  
    sortAscendingDidChange: Ember.observer(function() {
      if (get(this, 'sortAscending') !== this._lastSortAscending) {
        var arrangedContent = get(this, 'arrangedContent');
        arrangedContent.reverseObjects();
      }
    }, 'sortAscending'),
  
    contentArrayWillChange: function(array, idx, removedCount, addedCount) {
      var isSorted = get(this, 'isSorted');
  
      if (isSorted) {
        var arrangedContent = get(this, 'arrangedContent');
        var removedObjects = array.slice(idx, idx+removedCount);
        var sortProperties = get(this, 'sortProperties');
  
        forEach(removedObjects, function(item) {
          arrangedContent.removeObject(item);
  
          forEach(sortProperties, function(sortProperty) {
            Ember.removeObserver(item, sortProperty, this, 'contentItemSortPropertyDidChange');
          }, this);
        }, this);
      }
  
      return this._super(array, idx, removedCount, addedCount);
    },
  
    contentArrayDidChange: function(array, idx, removedCount, addedCount) {
      var isSorted = get(this, 'isSorted'),
          sortProperties = get(this, 'sortProperties');
  
      if (isSorted) {
        var addedObjects = array.slice(idx, idx+addedCount);
  
        forEach(addedObjects, function(item) {
          this.insertItemSorted(item);
  
          forEach(sortProperties, function(sortProperty) {
            Ember.addObserver(item, sortProperty, this, 'contentItemSortPropertyDidChange');
          }, this);
        }, this);
      }
  
      return this._super(array, idx, removedCount, addedCount);
    },
  
    insertItemSorted: function(item) {
      var arrangedContent = get(this, 'arrangedContent');
      var length = get(arrangedContent, 'length');
  
      var idx = this._binarySearch(item, 0, length);
      arrangedContent.insertAt(idx, item);
    },
  
    contentItemSortPropertyDidChange: function(item) {
      var arrangedContent = get(this, 'arrangedContent'),
          oldIndex = arrangedContent.indexOf(item),
          leftItem = arrangedContent.objectAt(oldIndex - 1),
          rightItem = arrangedContent.objectAt(oldIndex + 1),
          leftResult = leftItem && this.orderBy(item, leftItem),
          rightResult = rightItem && this.orderBy(item, rightItem);
  
      if (leftResult < 0 || rightResult > 0) {
        arrangedContent.removeObject(item);
        this.insertItemSorted(item);
      }
    },
  
    _binarySearch: function(item, low, high) {
      var mid, midItem, res, arrangedContent;
  
      if (low === high) {
        return low;
      }
  
      arrangedContent = get(this, 'arrangedContent');
  
      mid = low + Math.floor((high - low) / 2);
      midItem = arrangedContent.objectAt(mid);
  
      res = this.orderBy(midItem, item);
  
      if (res < 0) {
        return this._binarySearch(item, mid+1, high);
      } else if (res > 0) {
        return this._binarySearch(item, low, mid);
      }
  
      return mid;
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  var get = Ember.get, set = Ember.set, forEach = Ember.EnumerableUtils.forEach,
      replace = Ember.EnumerableUtils.replace;
  
  /**
    `Ember.ArrayController` provides a way for you to publish a collection of
    objects so that you can easily bind to the collection from a Handlebars
    `#each` helper, an `Ember.CollectionView`, or other controllers.
  
    The advantage of using an `ArrayController` is that you only have to set up
    your view bindings once; to change what's displayed, simply swap out the
    `content` property on the controller.
  
    For example, imagine you wanted to display a list of items fetched via an XHR
    request. Create an `Ember.ArrayController` and set its `content` property:
  
    ```javascript
    MyApp.listController = Ember.ArrayController.create();
  
    $.get('people.json', function(data) {
      MyApp.listController.set('content', data);
    });
    ```
  
    Then, create a view that binds to your new controller:
  
    ```handlebars
    {{#each MyApp.listController}}
      {{firstName}} {{lastName}}
    {{/each}}
    ```
  
    Although you are binding to the controller, the behavior of this controller
    is to pass through any methods or properties to the underlying array. This
    capability comes from `Ember.ArrayProxy`, which this class inherits from.
  
    Sometimes you want to display computed properties within the body of an
    `#each` helper that depend on the underlying items in `content`, but are not
    present on those items.   To do this, set `itemController` to the name of a
    controller (probably an `ObjectController`) that will wrap each individual item.
  
    For example:
  
    ```handlebars
      {{#each post in controller}}
        <li>{{title}} ({{titleLength}} characters)</li>
      {{/each}}
    ```
  
    ```javascript
    App.PostsController = Ember.ArrayController.extend({
      itemController: 'post'
    });
  
    App.PostController = Ember.ObjectController.extend({
      // the `title` property will be proxied to the underlying post.
  
      titleLength: function() {
        return this.get('title').length;
      }.property('title')
    });
    ```
  
    In some cases it is helpful to return a different `itemController` depending
    on the particular item.  Subclasses can do this by overriding
    `lookupItemController`.
  
    For example:
  
    ```javascript
    App.MyArrayController = Ember.ArrayController.extend({
      lookupItemController: function( object ) {
        if (object.get('isSpecial')) {
          return "special"; // use App.SpecialController
        } else {
          return "regular"; // use App.RegularController
        }
      }
    });
    ```
  
    The itemController instances will have a `parentController` property set to
    either the the `parentController` property of the `ArrayController`
    or to the `ArrayController` instance itself.
  
    @class ArrayController
    @namespace Ember
    @extends Ember.ArrayProxy
    @uses Ember.SortableMixin
    @uses Ember.ControllerMixin
  */
  
  Ember.ArrayController = Ember.ArrayProxy.extend(Ember.ControllerMixin,
    Ember.SortableMixin, {
  
    /**
      The controller used to wrap items, if any.
  
      @property itemController
      @type String
      @default null
    */
    itemController: null,
  
    /**
      Return the name of the controller to wrap items, or `null` if items should
      be returned directly.  The default implementation simply returns the
      `itemController` property, but subclasses can override this method to return
      different controllers for different objects.
  
      For example:
  
      ```javascript
      App.MyArrayController = Ember.ArrayController.extend({
        lookupItemController: function( object ) {
          if (object.get('isSpecial')) {
            return "special"; // use App.SpecialController
          } else {
            return "regular"; // use App.RegularController
          }
        }
      });
      ```
  
      @method lookupItemController
      @param {Object} object
      @return {String}
    */
    lookupItemController: function(object) {
      return get(this, 'itemController');
    },
  
    objectAtContent: function(idx) {
      var length = get(this, 'length'),
          arrangedContent = get(this,'arrangedContent'),
          object = arrangedContent && arrangedContent.objectAt(idx);
  
      if (idx >= 0 && idx < length) {
        var controllerClass = this.lookupItemController(object);
        if (controllerClass) {
          return this.controllerAt(idx, object, controllerClass);
        }
      }
  
      // When `controllerClass` is falsy, we have not opted in to using item
      // controllers, so return the object directly.
  
      // When the index is out of range, we want to return the "out of range"
      // value, whatever that might be.  Rather than make assumptions
      // (e.g. guessing `null` or `undefined`) we defer this to `arrangedContent`.
      return object;
    },
  
    arrangedContentDidChange: function() {
      this._super();
      this._resetSubControllers();
    },
  
    arrayContentDidChange: function(idx, removedCnt, addedCnt) {
      var subControllers = get(this, '_subControllers'),
          subControllersToRemove = subControllers.slice(idx, idx+removedCnt);
  
      forEach(subControllersToRemove, function(subController) {
        if (subController) { subController.destroy(); }
      });
  
      replace(subControllers, idx, removedCnt, new Array(addedCnt));
  
      // The shadow array of subcontrollers must be updated before we trigger
      // observers, otherwise observers will get the wrong subcontainer when
      // calling `objectAt`
      this._super(idx, removedCnt, addedCnt);
    },
  
    init: function() {
      if (!this.get('content')) { Ember.defineProperty(this, 'content', undefined, Ember.A()); }
      this._super();
      this.set('_subControllers', Ember.A());
    },
  
    controllerAt: function(idx, object, controllerClass) {
      var container = get(this, 'container'),
          subControllers = get(this, '_subControllers'),
          subController = subControllers[idx];
  
      if (!subController) {
        subController = container.lookup("controller:" + controllerClass, { singleton: false });
        subControllers[idx] = subController;
      }
  
      if (!subController) {
        throw new Error('Could not resolve itemController: "' + controllerClass + '"');
      }
  
      subController.set('target', this);
      subController.set('parentController', get(this, 'parentController') || this);
      subController.set('content', object);
  
      return subController;
    },
  
    _subControllers: null,
  
    _resetSubControllers: function() {
      var subControllers = get(this, '_subControllers');
      if (subControllers) {
        forEach(subControllers, function(subController) {
          if (subController) { subController.destroy(); }
        });
      }
  
      this.set('_subControllers', Ember.A());
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-runtime
  */
  
  /**
    `Ember.ObjectController` is part of Ember's Controller layer. A single shared
    instance of each `Ember.ObjectController` subclass in your application's
    namespace will be created at application initialization and be stored on your
    application's `Ember.Router` instance.
  
    `Ember.ObjectController` derives its functionality from its superclass
    `Ember.ObjectProxy` and the `Ember.ControllerMixin` mixin.
  
    @class ObjectController
    @namespace Ember
    @extends Ember.ObjectProxy
    @uses Ember.ControllerMixin
  **/
  Ember.ObjectController = Ember.ObjectProxy.extend(Ember.ControllerMixin);
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  /**
  Ember Runtime
  
  @module ember
  @submodule ember-runtime
  @requires ember-metal
  */
  
  })();
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  var jQuery = Ember.imports.jQuery;
  Ember.assert("Ember Views require jQuery 1.7, 1.8, 1.9, 1.10, or 2.0", jQuery && (jQuery().jquery.match(/^((1\.(7|8|9|10))|2.0)(\.\d+)?(pre|rc\d?)?/) || Ember.ENV.FORCE_JQUERY));
  
  /**
    Alias for jQuery
  
    @method $
    @for Ember
  */
  Ember.$ = jQuery;
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  if (Ember.$) {
    // http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#dndevents
    var dragEvents = Ember.String.w('dragstart drag dragenter dragleave dragover drop dragend');
  
    // Copies the `dataTransfer` property from a browser event object onto the
    // jQuery event object for the specified events
    Ember.EnumerableUtils.forEach(dragEvents, function(eventName) {
      Ember.$.event.fixHooks[eventName] = { props: ['dataTransfer'] };
    });
  }
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  /* BEGIN METAMORPH HELPERS */
  
  // Internet Explorer prior to 9 does not allow setting innerHTML if the first element
  // is a "zero-scope" element. This problem can be worked around by making
  // the first node an invisible text node. We, like Modernizr, use &shy;
  
  var needsShy = this.document && (function(){
    var testEl = document.createElement('div');
    testEl.innerHTML = "<div></div>";
    testEl.firstChild.innerHTML = "<script></script>";
    return testEl.firstChild.innerHTML === '';
  })();
  
  // IE 8 (and likely earlier) likes to move whitespace preceeding
  // a script tag to appear after it. This means that we can
  // accidentally remove whitespace when updating a morph.
  var movesWhitespace = this.document && (function() {
    var testEl = document.createElement('div');
    testEl.innerHTML = "Test: <script type='text/x-placeholder'></script>Value";
    return testEl.childNodes[0].nodeValue === 'Test:' &&
            testEl.childNodes[2].nodeValue === ' Value';
  })();
  
  // Use this to find children by ID instead of using jQuery
  var findChildById = function(element, id) {
    if (element.getAttribute('id') === id) { return element; }
  
    var len = element.childNodes.length, idx, node, found;
    for (idx=0; idx<len; idx++) {
      node = element.childNodes[idx];
      found = node.nodeType === 1 && findChildById(node, id);
      if (found) { return found; }
    }
  };
  
  var setInnerHTMLWithoutFix = function(element, html) {
    if (needsShy) {
      html = '&shy;' + html;
    }
  
    var matches = [];
    if (movesWhitespace) {
      // Right now we only check for script tags with ids with the
      // goal of targeting morphs.
      html = html.replace(/(\s+)(<script id='([^']+)')/g, function(match, spaces, tag, id) {
        matches.push([id, spaces]);
        return tag;
      });
    }
  
    element.innerHTML = html;
  
    // If we have to do any whitespace adjustments do them now
    if (matches.length > 0) {
      var len = matches.length, idx;
      for (idx=0; idx<len; idx++) {
        var script = findChildById(element, matches[idx][0]),
            node = document.createTextNode(matches[idx][1]);
        script.parentNode.insertBefore(node, script);
      }
    }
  
    if (needsShy) {
      var shyElement = element.firstChild;
      while (shyElement.nodeType === 1 && !shyElement.nodeName) {
        shyElement = shyElement.firstChild;
      }
      if (shyElement.nodeType === 3 && shyElement.nodeValue.charAt(0) === "\u00AD") {
        shyElement.nodeValue = shyElement.nodeValue.slice(1);
      }
    }
  };
  
  /* END METAMORPH HELPERS */
  
  
  var innerHTMLTags = {};
  var canSetInnerHTML = function(tagName) {
    if (innerHTMLTags[tagName] !== undefined) {
      return innerHTMLTags[tagName];
    }
  
    var canSet = true;
  
    // IE 8 and earlier don't allow us to do innerHTML on select
    if (tagName.toLowerCase() === 'select') {
      var el = document.createElement('select');
      setInnerHTMLWithoutFix(el, '<option value="test">Test</option>');
      canSet = el.options.length === 1;
    }
  
    innerHTMLTags[tagName] = canSet;
  
    return canSet;
  };
  
  var setInnerHTML = function(element, html) {
    var tagName = element.tagName;
  
    if (canSetInnerHTML(tagName)) {
      setInnerHTMLWithoutFix(element, html);
    } else {
      // Firefox versions < 11 do not have support for element.outerHTML.
      var outerHTML = element.outerHTML || new XMLSerializer().serializeToString(element);
      Ember.assert("Can't set innerHTML on "+element.tagName+" in this browser", outerHTML);
  
      var startTag = outerHTML.match(new RegExp("<"+tagName+"([^>]*)>", 'i'))[0],
          endTag = '</'+tagName+'>';
  
      var wrapper = document.createElement('div');
      setInnerHTMLWithoutFix(wrapper, startTag + html + endTag);
      element = wrapper.firstChild;
      while (element.tagName !== tagName) {
        element = element.nextSibling;
      }
    }
  
    return element;
  };
  
  function isSimpleClick(event) {
    var modifier = event.shiftKey || event.metaKey || event.altKey || event.ctrlKey,
        secondaryClick = event.which > 1; // IE9 may return undefined
  
    return !modifier && !secondaryClick;
  }
  
  Ember.ViewUtils = {
    setInnerHTML: setInnerHTML,
    isSimpleClick: isSimpleClick
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  var get = Ember.get, set = Ember.set;
  
  var ClassSet = function() {
    this.seen = {};
    this.list = [];
  };
  
  ClassSet.prototype = {
    add: function(string) {
      if (string in this.seen) { return; }
      this.seen[string] = true;
  
      this.list.push(string);
    },
  
    toDOM: function() {
      return this.list.join(" ");
    }
  };
  
  var BAD_TAG_NAME_TEST_REGEXP = /[^a-zA-Z\-]/;
  var BAD_TAG_NAME_REPLACE_REGEXP = /[^a-zA-Z\-]/g;
  
  function stripTagName(tagName) {
    if (!tagName) {
      return tagName;
    }
  
    if (!BAD_TAG_NAME_TEST_REGEXP.test(tagName)) {
      return tagName;
    }
  
    return tagName.replace(BAD_TAG_NAME_REPLACE_REGEXP, '');
  }
  
  var BAD_CHARS_REGEXP = /&(?!\w+;)|[<>"'`]/g;
  var POSSIBLE_CHARS_REGEXP = /[&<>"'`]/;
  
  function escapeAttribute(value) {
    // Stolen shamelessly from Handlebars
  
    var escape = {
      "<": "&lt;",
      ">": "&gt;",
      '"': "&quot;",
      "'": "&#x27;",
      "`": "&#x60;"
    };
  
    var escapeChar = function(chr) {
      return escape[chr] || "&amp;";
    };
  
    var string = value.toString();
  
    if(!POSSIBLE_CHARS_REGEXP.test(string)) { return string; }
    return string.replace(BAD_CHARS_REGEXP, escapeChar);
  }
  
  /**
    `Ember.RenderBuffer` gathers information regarding the a view and generates the
    final representation. `Ember.RenderBuffer` will generate HTML which can be pushed
    to the DOM.
  
    @class RenderBuffer
    @namespace Ember
    @constructor
  */
  Ember.RenderBuffer = function(tagName) {
    return new Ember._RenderBuffer(tagName);
  };
  
  Ember._RenderBuffer = function(tagName) {
    this.tagNames = [tagName || null];
    this.buffer = "";
  };
  
  Ember._RenderBuffer.prototype =
  /** @scope Ember.RenderBuffer.prototype */ {
  
    // The root view's element
    _element: null,
  
    _hasElement: true,
  
    /**
      @private
  
      An internal set used to de-dupe class names when `addClass()` is
      used. After each call to `addClass()`, the `classes` property
      will be updated.
  
      @property elementClasses
      @type Array
      @default []
    */
    elementClasses: null,
  
    /**
      Array of class names which will be applied in the class attribute.
  
      You can use `setClasses()` to set this property directly. If you
      use `addClass()`, it will be maintained for you.
  
      @property classes
      @type Array
      @default []
    */
    classes: null,
  
    /**
      The id in of the element, to be applied in the id attribute.
  
      You should not set this property yourself, rather, you should use
      the `id()` method of `Ember.RenderBuffer`.
  
      @property elementId
      @type String
      @default null
    */
    elementId: null,
  
    /**
      A hash keyed on the name of the attribute and whose value will be
      applied to that attribute. For example, if you wanted to apply a
      `data-view="Foo.bar"` property to an element, you would set the
      elementAttributes hash to `{'data-view':'Foo.bar'}`.
  
      You should not maintain this hash yourself, rather, you should use
      the `attr()` method of `Ember.RenderBuffer`.
  
      @property elementAttributes
      @type Hash
      @default {}
    */
    elementAttributes: null,
  
    /**
      A hash keyed on the name of the properties and whose value will be
      applied to that property. For example, if you wanted to apply a
      `checked=true` property to an element, you would set the
      elementProperties hash to `{'checked':true}`.
  
      You should not maintain this hash yourself, rather, you should use
      the `prop()` method of `Ember.RenderBuffer`.
  
      @property elementProperties
      @type Hash
      @default {}
    */
    elementProperties: null,
  
    /**
      The tagname of the element an instance of `Ember.RenderBuffer` represents.
  
      Usually, this gets set as the first parameter to `Ember.RenderBuffer`. For
      example, if you wanted to create a `p` tag, then you would call
  
      ```javascript
      Ember.RenderBuffer('p')
      ```
  
      @property elementTag
      @type String
      @default null
    */
    elementTag: null,
  
    /**
      A hash keyed on the name of the style attribute and whose value will
      be applied to that attribute. For example, if you wanted to apply a
      `background-color:black;` style to an element, you would set the
      elementStyle hash to `{'background-color':'black'}`.
  
      You should not maintain this hash yourself, rather, you should use
      the `style()` method of `Ember.RenderBuffer`.
  
      @property elementStyle
      @type Hash
      @default {}
    */
    elementStyle: null,
  
    /**
      Nested `RenderBuffers` will set this to their parent `RenderBuffer`
      instance.
  
      @property parentBuffer
      @type Ember._RenderBuffer
    */
    parentBuffer: null,
  
    /**
      Adds a string of HTML to the `RenderBuffer`.
  
      @method push
      @param {String} string HTML to push into the buffer
      @chainable
    */
    push: function(string) {
      this.buffer += string;
      return this;
    },
  
    /**
      Adds a class to the buffer, which will be rendered to the class attribute.
  
      @method addClass
      @param {String} className Class name to add to the buffer
      @chainable
    */
    addClass: function(className) {
      // lazily create elementClasses
      this.elementClasses = (this.elementClasses || new ClassSet());
      this.elementClasses.add(className);
      this.classes = this.elementClasses.list;
  
      return this;
    },
  
    setClasses: function(classNames) {
      this.classes = classNames;
    },
  
    /**
      Sets the elementID to be used for the element.
  
      @method id
      @param {String} id
      @chainable
    */
    id: function(id) {
      this.elementId = id;
      return this;
    },
  
    // duck type attribute functionality like jQuery so a render buffer
    // can be used like a jQuery object in attribute binding scenarios.
  
    /**
      Adds an attribute which will be rendered to the element.
  
      @method attr
      @param {String} name The name of the attribute
      @param {String} value The value to add to the attribute
      @chainable
      @return {Ember.RenderBuffer|String} this or the current attribute value
    */
    attr: function(name, value) {
      var attributes = this.elementAttributes = (this.elementAttributes || {});
  
      if (arguments.length === 1) {
        return attributes[name];
      } else {
        attributes[name] = value;
      }
  
      return this;
    },
  
    /**
      Remove an attribute from the list of attributes to render.
  
      @method removeAttr
      @param {String} name The name of the attribute
      @chainable
    */
    removeAttr: function(name) {
      var attributes = this.elementAttributes;
      if (attributes) { delete attributes[name]; }
  
      return this;
    },
  
    /**
      Adds an property which will be rendered to the element.
  
      @method prop
      @param {String} name The name of the property
      @param {String} value The value to add to the property
      @chainable
      @return {Ember.RenderBuffer|String} this or the current property value
    */
    prop: function(name, value) {
      var properties = this.elementProperties = (this.elementProperties || {});
  
      if (arguments.length === 1) {
        return properties[name];
      } else {
        properties[name] = value;
      }
  
      return this;
    },
  
    /**
      Remove an property from the list of properties to render.
  
      @method removeProp
      @param {String} name The name of the property
      @chainable
    */
    removeProp: function(name) {
      var properties = this.elementProperties;
      if (properties) { delete properties[name]; }
  
      return this;
    },
  
    /**
      Adds a style to the style attribute which will be rendered to the element.
  
      @method style
      @param {String} name Name of the style
      @param {String} value
      @chainable
    */
    style: function(name, value) {
      this.elementStyle = (this.elementStyle || {});
  
      this.elementStyle[name] = value;
      return this;
    },
  
    begin: function(tagName) {
      this.tagNames.push(tagName || null);
      return this;
    },
  
    pushOpeningTag: function() {
      var tagName = this.currentTagName();
      if (!tagName) { return; }
  
      if (this._hasElement && !this._element && this.buffer.length === 0) {
        this._element = this.generateElement();
        return;
      }
  
      var buffer = this.buffer,
          id = this.elementId,
          classes = this.classes,
          attrs = this.elementAttributes,
          props = this.elementProperties,
          style = this.elementStyle,
          attr, prop;
  
      buffer += '<' + stripTagName(tagName);
  
      if (id) {
        buffer += ' id="' + escapeAttribute(id) + '"';
        this.elementId = null;
      }
      if (classes) {
        buffer += ' class="' + escapeAttribute(classes.join(' ')) + '"';
        this.classes = null;
      }
  
      if (style) {
        buffer += ' style="';
  
        for (prop in style) {
          if (style.hasOwnProperty(prop)) {
            buffer += prop + ':' + escapeAttribute(style[prop]) + ';';
          }
        }
  
        buffer += '"';
  
        this.elementStyle = null;
      }
  
      if (attrs) {
        for (attr in attrs) {
          if (attrs.hasOwnProperty(attr)) {
            buffer += ' ' + attr + '="' + escapeAttribute(attrs[attr]) + '"';
          }
        }
  
        this.elementAttributes = null;
      }
  
      if (props) {
        for (prop in props) {
          if (props.hasOwnProperty(prop)) {
            var value = props[prop];
            if (value || typeof(value) === 'number') {
              if (value === true) {
                buffer += ' ' + prop + '="' + prop + '"';
              } else {
                buffer += ' ' + prop + '="' + escapeAttribute(props[prop]) + '"';
              }
            }
          }
        }
  
        this.elementProperties = null;
      }
  
      buffer += '>';
      this.buffer = buffer;
    },
  
    pushClosingTag: function() {
      var tagName = this.tagNames.pop();
      if (tagName) { this.buffer += '</' + stripTagName(tagName) + '>'; }
    },
  
    currentTagName: function() {
      return this.tagNames[this.tagNames.length-1];
    },
  
    generateElement: function() {
      var tagName = this.tagNames.pop(), // pop since we don't need to close
          element = document.createElement(tagName),
          $element = Ember.$(element),
          id = this.elementId,
          classes = this.classes,
          attrs = this.elementAttributes,
          props = this.elementProperties,
          style = this.elementStyle,
          styleBuffer = '', attr, prop;
  
      if (id) {
        $element.attr('id', id);
        this.elementId = null;
      }
      if (classes) {
        $element.attr('class', classes.join(' '));
        this.classes = null;
      }
  
      if (style) {
        for (prop in style) {
          if (style.hasOwnProperty(prop)) {
            styleBuffer += (prop + ':' + style[prop] + ';');
          }
        }
  
        $element.attr('style', styleBuffer);
  
        this.elementStyle = null;
      }
  
      if (attrs) {
        for (attr in attrs) {
          if (attrs.hasOwnProperty(attr)) {
            $element.attr(attr, attrs[attr]);
          }
        }
  
        this.elementAttributes = null;
      }
  
      if (props) {
        for (prop in props) {
          if (props.hasOwnProperty(prop)) {
            $element.prop(prop, props[prop]);
          }
        }
  
        this.elementProperties = null;
      }
  
      return element;
    },
  
    /**
      @method element
      @return {DOMElement} The element corresponding to the generated HTML
        of this buffer
    */
    element: function() {
      var html = this.innerString();
  
      if (html) {
        this._element = Ember.ViewUtils.setInnerHTML(this._element, html);
      }
  
      return this._element;
    },
  
    /**
      Generates the HTML content for this buffer.
  
      @method string
      @return {String} The generated HTML
    */
    string: function() {
      if (this._hasElement && this._element) {
        // Firefox versions < 11 do not have support for element.outerHTML.
        var thisElement = this.element(), outerHTML = thisElement.outerHTML;
        if (typeof outerHTML === 'undefined'){
          return Ember.$('<div/>').append(thisElement).html();
        }
        return outerHTML;
      } else {
        return this.innerString();
      }
    },
  
    innerString: function() {
      return this.buffer;
    }
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  var get = Ember.get, set = Ember.set, fmt = Ember.String.fmt;
  
  /**
    `Ember.EventDispatcher` handles delegating browser events to their
    corresponding `Ember.Views.` For example, when you click on a view,
    `Ember.EventDispatcher` ensures that that view's `mouseDown` method gets
    called.
  
    @class EventDispatcher
    @namespace Ember
    @private
    @extends Ember.Object
  */
  Ember.EventDispatcher = Ember.Object.extend(/** @scope Ember.EventDispatcher.prototype */{
  
    /**
      The set of events names (and associated handler function names) to be setup
      and dispatched by the `EventDispatcher`. Custom events can added to this list at setup
      time, generally via the `Ember.Application.customEvents` hash. Only override this
      default set to prevent the EventDispatcher from listening on some events all together.
  
      This set will be modified by `setup` to also include any events added at that time.
  
      @property events
      @type Object
    */
    events: {
      touchstart  : 'touchStart',
      touchmove   : 'touchMove',
      touchend    : 'touchEnd',
      touchcancel : 'touchCancel',
      keydown     : 'keyDown',
      keyup       : 'keyUp',
      keypress    : 'keyPress',
      mousedown   : 'mouseDown',
      mouseup     : 'mouseUp',
      contextmenu : 'contextMenu',
      click       : 'click',
      dblclick    : 'doubleClick',
      mousemove   : 'mouseMove',
      focusin     : 'focusIn',
      focusout    : 'focusOut',
      mouseenter  : 'mouseEnter',
      mouseleave  : 'mouseLeave',
      submit      : 'submit',
      input       : 'input',
      change      : 'change',
      dragstart   : 'dragStart',
      drag        : 'drag',
      dragenter   : 'dragEnter',
      dragleave   : 'dragLeave',
      dragover    : 'dragOver',
      drop        : 'drop',
      dragend     : 'dragEnd'
    },
  
    /**
      @private
  
      The root DOM element to which event listeners should be attached. Event
      listeners will be attached to the document unless this is overridden.
  
      Can be specified as a DOMElement or a selector string.
  
      The default body is a string since this may be evaluated before document.body
      exists in the DOM.
  
      @property rootElement
      @type DOMElement
      @default 'body'
    */
    rootElement: 'body',
  
    /**
      @private
  
      Sets up event listeners for standard browser events.
  
      This will be called after the browser sends a `DOMContentReady` event. By
      default, it will set up all of the listeners on the document body. If you
      would like to register the listeners on a different element, set the event
      dispatcher's `root` property.
  
      @method setup
      @param addedEvents {Hash}
    */
    setup: function(addedEvents, rootElement) {
      var event, events = get(this, 'events');
  
      Ember.$.extend(events, addedEvents || {});
  
  
      if (!Ember.isNone(rootElement)) {
        set(this, 'rootElement', rootElement);
      }
  
      rootElement = Ember.$(get(this, 'rootElement'));
  
      Ember.assert(fmt('You cannot use the same root element (%@) multiple times in an Ember.Application', [rootElement.selector || rootElement[0].tagName]), !rootElement.is('.ember-application'));
      Ember.assert('You cannot make a new Ember.Application using a root element that is a descendent of an existing Ember.Application', !rootElement.closest('.ember-application').length);
      Ember.assert('You cannot make a new Ember.Application using a root element that is an ancestor of an existing Ember.Application', !rootElement.find('.ember-application').length);
  
      rootElement.addClass('ember-application');
  
      Ember.assert('Unable to add "ember-application" class to rootElement. Make sure you set rootElement to the body or an element in the body.', rootElement.is('.ember-application'));
  
      for (event in events) {
        if (events.hasOwnProperty(event)) {
          this.setupHandler(rootElement, event, events[event]);
        }
      }
    },
  
    /**
      @private
  
      Registers an event listener on the document. If the given event is
      triggered, the provided event handler will be triggered on the target view.
  
      If the target view does not implement the event handler, or if the handler
      returns `false`, the parent view will be called. The event will continue to
      bubble to each successive parent view until it reaches the top.
  
      For example, to have the `mouseDown` method called on the target view when
      a `mousedown` event is received from the browser, do the following:
  
      ```javascript
      setupHandler('mousedown', 'mouseDown');
      ```
  
      @method setupHandler
      @param {Element} rootElement
      @param {String} event the browser-originated event to listen to
      @param {String} eventName the name of the method to call on the view
    */
    setupHandler: function(rootElement, event, eventName) {
      var self = this;
  
      rootElement.on(event + '.ember', '.ember-view', function(evt, triggeringManager) {
        return Ember.handleErrors(function() {
          var view = Ember.View.views[this.id],
              result = true, manager = null;
  
          manager = self._findNearestEventManager(view,eventName);
  
          if (manager && manager !== triggeringManager) {
            result = self._dispatchEvent(manager, evt, eventName, view);
          } else if (view) {
            result = self._bubbleEvent(view,evt,eventName);
          } else {
            evt.stopPropagation();
          }
  
          return result;
        }, this);
      });
  
      rootElement.on(event + '.ember', '[data-ember-action]', function(evt) {
        return Ember.handleErrors(function() {
          var actionId = Ember.$(evt.currentTarget).attr('data-ember-action'),
              action   = Ember.Handlebars.ActionHelper.registeredActions[actionId];
  
          // We have to check for action here since in some cases, jQuery will trigger
          // an event on `removeChild` (i.e. focusout) after we've already torn down the
          // action handlers for the view.
          if (action && action.eventName === eventName) {
            return action.handler(evt);
          }
        }, this);
      });
    },
  
    _findNearestEventManager: function(view, eventName) {
      var manager = null;
  
      while (view) {
        manager = get(view, 'eventManager');
        if (manager && manager[eventName]) { break; }
  
        view = get(view, 'parentView');
      }
  
      return manager;
    },
  
    _dispatchEvent: function(object, evt, eventName, view) {
      var result = true;
  
      var handler = object[eventName];
      if (Ember.typeOf(handler) === 'function') {
        result = handler.call(object, evt, view);
        // Do not preventDefault in eventManagers.
        evt.stopPropagation();
      }
      else {
        result = this._bubbleEvent(view, evt, eventName);
      }
  
      return result;
    },
  
    _bubbleEvent: function(view, evt, eventName) {
      return Ember.run(function() {
        return view.handleEvent(eventName, evt);
      });
    },
  
    destroy: function() {
      var rootElement = get(this, 'rootElement');
      Ember.$(rootElement).off('.ember', '**').removeClass('ember-application');
      return this._super();
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  // Add a new named queue for rendering views that happens
  // after bindings have synced, and a queue for scheduling actions
  // that that should occur after view rendering.
  var queues = Ember.run.queues,
      indexOf = Ember.ArrayPolyfills.indexOf;
  queues.splice(indexOf.call(queues, 'actions')+1, 0, 'render', 'afterRender');
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  var get = Ember.get, set = Ember.set;
  
  // Original class declaration and documentation in runtime/lib/controllers/controller.js
  // NOTE: It may be possible with YUIDoc to combine docs in two locations
  
  /**
  Additional methods for the ControllerMixin
  
  @class ControllerMixin
  @namespace Ember
  */
  Ember.ControllerMixin.reopen({
    target: null,
    namespace: null,
    view: null,
    container: null,
    _childContainers: null,
  
    init: function() {
      this._super();
      set(this, '_childContainers', {});
    },
  
    _modelDidChange: Ember.observer(function() {
      var containers = get(this, '_childContainers');
  
      for (var prop in containers) {
        if (!containers.hasOwnProperty(prop)) { continue; }
        containers[prop].destroy();
      }
  
      set(this, '_childContainers', {});
    }, 'model')
  });
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  var states = {};
  
  /**
  @module ember
  @submodule ember-views
  */
  
  var get = Ember.get, set = Ember.set;
  var guidFor = Ember.guidFor;
  var a_forEach = Ember.EnumerableUtils.forEach;
  var a_addObject = Ember.EnumerableUtils.addObject;
  
  var childViewsProperty = Ember.computed(function() {
    var childViews = this._childViews, ret = Ember.A(), view = this;
  
    a_forEach(childViews, function(view) {
      if (view.isVirtual) {
        ret.pushObjects(get(view, 'childViews'));
      } else {
        ret.push(view);
      }
    });
  
    ret.replace = function (idx, removedCount, addedViews) {
      if (view instanceof Ember.ContainerView) {
        Ember.deprecate("Manipulating an Ember.ContainerView through its childViews property is deprecated. Please use the ContainerView instance itself as an Ember.MutableArray.");
        return view.replace(idx, removedCount, addedViews);
      }
      throw new Error("childViews is immutable");
    };
  
    return ret;
  });
  
  Ember.warn("The VIEW_PRESERVES_CONTEXT flag has been removed and the functionality can no longer be disabled.", Ember.ENV.VIEW_PRESERVES_CONTEXT !== false);
  
  /**
    Global hash of shared templates. This will automatically be populated
    by the build tools so that you can store your Handlebars templates in
    separate files that get loaded into JavaScript at buildtime.
  
    @property TEMPLATES
    @for Ember
    @type Hash
  */
  Ember.TEMPLATES = {};
  
  /**
    `Ember.CoreView` is
  
    @class CoreView
    @namespace Ember
    @extends Ember.Object
    @uses Ember.Evented
  */
  
  Ember.CoreView = Ember.Object.extend(Ember.Evented, {
    isView: true,
  
    states: states,
  
    init: function() {
      this._super();
      this.transitionTo('preRender');
    },
  
    /**
      If the view is currently inserted into the DOM of a parent view, this
      property will point to the parent of the view.
  
      @property parentView
      @type Ember.View
      @default null
    */
    parentView: Ember.computed(function() {
      var parent = this._parentView;
  
      if (parent && parent.isVirtual) {
        return get(parent, 'parentView');
      } else {
        return parent;
      }
    }).property('_parentView'),
  
    state: null,
  
    _parentView: null,
  
    // return the current view, not including virtual views
    concreteView: Ember.computed(function() {
      if (!this.isVirtual) { return this; }
      else { return get(this, 'parentView'); }
    }).property('parentView'),
  
    instrumentName: 'core_view',
  
    instrumentDetails: function(hash) {
      hash.object = this.toString();
    },
  
    /**
      @private
  
      Invoked by the view system when this view needs to produce an HTML
      representation. This method will create a new render buffer, if needed,
      then apply any default attributes, such as class names and visibility.
      Finally, the `render()` method is invoked, which is responsible for
      doing the bulk of the rendering.
  
      You should not need to override this method; instead, implement the
      `template` property, or if you need more control, override the `render`
      method.
  
      @method renderToBuffer
      @param {Ember.RenderBuffer} buffer the render buffer. If no buffer is
        passed, a default buffer, using the current view's `tagName`, will
        be used.
    */
    renderToBuffer: function(parentBuffer, bufferOperation) {
      var name = 'render.' + this.instrumentName,
          details = {};
  
      this.instrumentDetails(details);
  
      return Ember.instrument(name, details, function() {
        return this._renderToBuffer(parentBuffer, bufferOperation);
      }, this);
    },
  
    _renderToBuffer: function(parentBuffer, bufferOperation) {
      // If this is the top-most view, start a new buffer. Otherwise,
      // create a new buffer relative to the original using the
      // provided buffer operation (for example, `insertAfter` will
      // insert a new buffer after the "parent buffer").
      var tagName = this.tagName;
  
      if (tagName === null || tagName === undefined) {
        tagName = 'div';
      }
  
      var buffer = this.buffer = parentBuffer && parentBuffer.begin(tagName) || Ember.RenderBuffer(tagName);
      this.transitionTo('inBuffer', false);
  
      this.beforeRender(buffer);
      this.render(buffer);
      this.afterRender(buffer);
  
      return buffer;
    },
  
    /**
      @private
  
      Override the default event firing from `Ember.Evented` to
      also call methods with the given name.
  
      @method trigger
      @param name {String}
    */
    trigger: function(name) {
      this._super.apply(this, arguments);
      var method = this[name];
      if (method) {
        var args = [], i, l;
        for (i = 1, l = arguments.length; i < l; i++) {
          args.push(arguments[i]);
        }
        return method.apply(this, args);
      }
    },
  
    has: function(name) {
      return Ember.typeOf(this[name]) === 'function' || this._super(name);
    },
  
    destroy: function() {
      var parent = this._parentView;
  
      if (!this._super()) { return; }
  
      // destroy the element -- this will avoid each child view destroying
      // the element over and over again...
      if (!this.removedFromDOM) { this.destroyElement(); }
  
      // remove from parent if found. Don't call removeFromParent,
      // as removeFromParent will try to remove the element from
      // the DOM again.
      if (parent) { parent.removeChild(this); }
  
      this.transitionTo('destroying', false);
  
      return this;
    },
  
    clearRenderedChildren: Ember.K,
    triggerRecursively: Ember.K,
    invokeRecursively: Ember.K,
    transitionTo: Ember.K,
    destroyElement: Ember.K
  });
  
  var ViewCollection = Ember._ViewCollection = function(initialViews) {
    var views = this.views = initialViews || [];
    this.length = views.length;
  };
  
  ViewCollection.prototype = {
    length: 0,
  
    trigger: function(eventName) {
      var views = this.views, view;
      for (var i = 0, l = views.length; i < l; i++) {
        view = views[i];
        if (view.trigger) { view.trigger(eventName); }
      }
    },
  
    triggerRecursively: function(eventName) {
      var views = this.views;
      for (var i = 0, l = views.length; i < l; i++) {
        views[i].triggerRecursively(eventName);
      }
    },
  
    invokeRecursively: function(fn) {
      var views = this.views, view;
  
      for (var i = 0, l = views.length; i < l; i++) {
        view = views[i];
        fn(view);
      }
    },
  
    transitionTo: function(state, children) {
      var views = this.views;
      for (var i = 0, l = views.length; i < l; i++) {
        views[i].transitionTo(state, children);
      }
    },
  
    push: function() {
      this.length += arguments.length;
      var views = this.views;
      return views.push.apply(views, arguments);
    },
  
    objectAt: function(idx) {
      return this.views[idx];
    },
  
    forEach: function(callback) {
      var views = this.views;
      return a_forEach(views, callback);
    },
  
    clear: function() {
      this.length = 0;
      this.views.length = 0;
    }
  };
  
  var EMPTY_ARRAY = [];
  
  /**
    `Ember.View` is the class in Ember responsible for encapsulating templates of
    HTML content, combining templates with data to render as sections of a page's
    DOM, and registering and responding to user-initiated events.
  
    ## HTML Tag
  
    The default HTML tag name used for a view's DOM representation is `div`. This
    can be customized by setting the `tagName` property. The following view
  class:
  
    ```javascript
    ParagraphView = Ember.View.extend({
      tagName: 'em'
    });
    ```
  
    Would result in instances with the following HTML:
  
    ```html
    <em id="ember1" class="ember-view"></em>
    ```
  
    ## HTML `class` Attribute
  
    The HTML `class` attribute of a view's tag can be set by providing a
    `classNames` property that is set to an array of strings:
  
    ```javascript
    MyView = Ember.View.extend({
      classNames: ['my-class', 'my-other-class']
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view my-class my-other-class"></div>
    ```
  
    `class` attribute values can also be set by providing a `classNameBindings`
    property set to an array of properties names for the view. The return value
    of these properties will be added as part of the value for the view's `class`
    attribute. These properties can be computed properties:
  
    ```javascript
    MyView = Ember.View.extend({
      classNameBindings: ['propertyA', 'propertyB'],
      propertyA: 'from-a',
      propertyB: function(){
        if(someLogic){ return 'from-b'; }
      }.property()
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view from-a from-b"></div>
    ```
  
    If the value of a class name binding returns a boolean the property name
    itself will be used as the class name if the property is true. The class name
    will not be added if the value is `false` or `undefined`.
  
    ```javascript
    MyView = Ember.View.extend({
      classNameBindings: ['hovered'],
      hovered: true
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view hovered"></div>
    ```
  
    When using boolean class name bindings you can supply a string value other
    than the property name for use as the `class` HTML attribute by appending the
    preferred value after a ":" character when defining the binding:
  
    ```javascript
    MyView = Ember.View.extend({
      classNameBindings: ['awesome:so-very-cool'],
      awesome: true
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view so-very-cool"></div>
    ```
  
    Boolean value class name bindings whose property names are in a
    camelCase-style format will be converted to a dasherized format:
  
    ```javascript
    MyView = Ember.View.extend({
      classNameBindings: ['isUrgent'],
      isUrgent: true
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view is-urgent"></div>
    ```
  
    Class name bindings can also refer to object values that are found by
    traversing a path relative to the view itself:
  
    ```javascript
    MyView = Ember.View.extend({
      classNameBindings: ['messages.empty']
      messages: Ember.Object.create({
        empty: true
      })
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view empty"></div>
    ```
  
    If you want to add a class name for a property which evaluates to true and
    and a different class name if it evaluates to false, you can pass a binding
    like this:
  
    ```javascript
    // Applies 'enabled' class when isEnabled is true and 'disabled' when isEnabled is false
    Ember.View.create({
      classNameBindings: ['isEnabled:enabled:disabled']
      isEnabled: true
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view enabled"></div>
    ```
  
    When isEnabled is `false`, the resulting HTML reprensentation looks like
    this:
  
    ```html
    <div id="ember1" class="ember-view disabled"></div>
    ```
  
    This syntax offers the convenience to add a class if a property is `false`:
  
    ```javascript
    // Applies no class when isEnabled is true and class 'disabled' when isEnabled is false
    Ember.View.create({
      classNameBindings: ['isEnabled::disabled']
      isEnabled: true
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view"></div>
    ```
  
    When the `isEnabled` property on the view is set to `false`, it will result
    in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view disabled"></div>
    ```
  
    Updates to the the value of a class name binding will result in automatic
    update of the  HTML `class` attribute in the view's rendered HTML
    representation. If the value becomes `false` or `undefined` the class name
    will be removed.
  
    Both `classNames` and `classNameBindings` are concatenated properties. See
    `Ember.Object` documentation for more information about concatenated
    properties.
  
    ## HTML Attributes
  
    The HTML attribute section of a view's tag can be set by providing an
    `attributeBindings` property set to an array of property names on the view.
    The return value of these properties will be used as the value of the view's
    HTML associated attribute:
  
    ```javascript
    AnchorView = Ember.View.extend({
      tagName: 'a',
      attributeBindings: ['href'],
      href: 'http://google.com'
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <a id="ember1" class="ember-view" href="http://google.com"></a>
    ```
  
    If the return value of an `attributeBindings` monitored property is a boolean
    the property will follow HTML's pattern of repeating the attribute's name as
    its value:
  
    ```javascript
    MyTextInput = Ember.View.extend({
      tagName: 'input',
      attributeBindings: ['disabled'],
      disabled: true
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <input id="ember1" class="ember-view" disabled="disabled" />
    ```
  
    `attributeBindings` can refer to computed properties:
  
    ```javascript
    MyTextInput = Ember.View.extend({
      tagName: 'input',
      attributeBindings: ['disabled'],
      disabled: function(){
        if (someLogic) {
          return true;
        } else {
          return false;
        }
      }.property()
    });
    ```
  
    Updates to the the property of an attribute binding will result in automatic
    update of the  HTML attribute in the view's rendered HTML representation.
  
    `attributeBindings` is a concatenated property. See `Ember.Object`
    documentation for more information about concatenated properties.
  
    ## Templates
  
    The HTML contents of a view's rendered representation are determined by its
    template. Templates can be any function that accepts an optional context
    parameter and returns a string of HTML that will be inserted within the
    view's tag. Most typically in Ember this function will be a compiled
    `Ember.Handlebars` template.
  
    ```javascript
    AView = Ember.View.extend({
      template: Ember.Handlebars.compile('I am the template')
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view">I am the template</div>
    ```
  
    Within an Ember application is more common to define a Handlebars templates as
    part of a page:
  
    ```html
    <script type='text/x-handlebars' data-template-name='some-template'>
      Hello
    </script>
    ```
  
    And associate it by name using a view's `templateName` property:
  
    ```javascript
    AView = Ember.View.extend({
      templateName: 'some-template'
    });
    ```
  
    Using a value for `templateName` that does not have a Handlebars template
    with a matching `data-template-name` attribute will throw an error.
  
    Assigning a value to both `template` and `templateName` properties will throw
    an error.
  
    For views classes that may have a template later defined (e.g. as the block
    portion of a `{{view}}` Handlebars helper call in another template or in
    a subclass), you can provide a `defaultTemplate` property set to compiled
    template function. If a template is not later provided for the view instance
    the `defaultTemplate` value will be used:
  
    ```javascript
    AView = Ember.View.extend({
      defaultTemplate: Ember.Handlebars.compile('I was the default'),
      template: null,
      templateName: null
    });
    ```
  
    Will result in instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view">I was the default</div>
    ```
  
    If a `template` or `templateName` is provided it will take precedence over
    `defaultTemplate`:
  
    ```javascript
    AView = Ember.View.extend({
      defaultTemplate: Ember.Handlebars.compile('I was the default')
    });
  
    aView = AView.create({
      template: Ember.Handlebars.compile('I was the template, not default')
    });
    ```
  
    Will result in the following HTML representation when rendered:
  
    ```html
    <div id="ember1" class="ember-view">I was the template, not default</div>
    ```
  
    ## View Context
  
    The default context of the compiled template is the view's controller:
  
    ```javascript
    AView = Ember.View.extend({
      template: Ember.Handlebars.compile('Hello {{excitedGreeting}}')
    });
  
    aController = Ember.Object.create({
      firstName: 'Barry',
      excitedGreeting: function(){
        return this.get("content.firstName") + "!!!"
      }.property()
    });
  
    aView = AView.create({
      controller: aController,
    });
    ```
  
    Will result in an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view">Hello Barry!!!</div>
    ```
  
    A context can also be explicitly supplied through the view's `context`
    property. If the view has neither `context` nor `controller` properties, the
    `parentView`'s context will be used.
  
    ## Layouts
  
    Views can have a secondary template that wraps their main template. Like
    primary templates, layouts can be any function that  accepts an optional
    context parameter and returns a string of HTML that will be inserted inside
    view's tag. Views whose HTML element is self closing (e.g. `<input />`)
    cannot have a layout and this property will be ignored.
  
    Most typically in Ember a layout will be a compiled `Ember.Handlebars`
    template.
  
    A view's layout can be set directly with the `layout` property or reference
    an existing Handlebars template by name with the `layoutName` property.
  
    A template used as a layout must contain a single use of the Handlebars
    `{{yield}}` helper. The HTML contents of a view's rendered `template` will be
    inserted at this location:
  
    ```javascript
    AViewWithLayout = Ember.View.extend({
      layout: Ember.Handlebars.compile("<div class='my-decorative-class'>{{yield}}</div>")
      template: Ember.Handlebars.compile("I got wrapped"),
    });
    ```
  
    Will result in view instances with an HTML representation of:
  
    ```html
    <div id="ember1" class="ember-view">
      <div class="my-decorative-class">
        I got wrapped
      </div>
    </div>
    ```
  
    See `Handlebars.helpers.yield` for more information.
  
    ## Responding to Browser Events
  
    Views can respond to user-initiated events in one of three ways: method
    implementation, through an event manager, and through `{{action}}` helper use
    in their template or layout.
  
    ### Method Implementation
  
    Views can respond to user-initiated events by implementing a method that
    matches the event name. A `jQuery.Event` object will be passed as the
    argument to this method.
  
    ```javascript
    AView = Ember.View.extend({
      click: function(event){
        // will be called when when an instance's
        // rendered element is clicked
      }
    });
    ```
  
    ### Event Managers
  
    Views can define an object as their `eventManager` property. This object can
    then implement methods that match the desired event names. Matching events
    that occur on the view's rendered HTML or the rendered HTML of any of its DOM
    descendants will trigger this method. A `jQuery.Event` object will be passed
    as the first argument to the method and an  `Ember.View` object as the
    second. The `Ember.View` will be the view whose rendered HTML was interacted
    with. This may be the view with the `eventManager` property or one of its
    descendent views.
  
    ```javascript
    AView = Ember.View.extend({
      eventManager: Ember.Object.create({
        doubleClick: function(event, view){
          // will be called when when an instance's
          // rendered element or any rendering
          // of this views's descendent
          // elements is clicked
        }
      })
    });
    ```
  
    An event defined for an event manager takes precedence over events of the
    same name handled through methods on the view.
  
    ```javascript
    AView = Ember.View.extend({
      mouseEnter: function(event){
        // will never trigger.
      },
      eventManager: Ember.Object.create({
        mouseEnter: function(event, view){
          // takes presedence over AView#mouseEnter
        }
      })
    });
    ```
  
    Similarly a view's event manager will take precedence for events of any views
    rendered as a descendent. A method name that matches an event name will not
    be called if the view instance was rendered inside the HTML representation of
    a view that has an `eventManager` property defined that handles events of the
    name. Events not handled by the event manager will still trigger method calls
    on the descendent.
  
    ```javascript
    OuterView = Ember.View.extend({
      template: Ember.Handlebars.compile("outer {{#view InnerView}}inner{{/view}} outer"),
      eventManager: Ember.Object.create({
        mouseEnter: function(event, view){
          // view might be instance of either
          // OuterView or InnerView depending on
          // where on the page the user interaction occured
        }
      })
    });
  
    InnerView = Ember.View.extend({
      click: function(event){
        // will be called if rendered inside
        // an OuterView because OuterView's
        // eventManager doesn't handle click events
      },
      mouseEnter: function(event){
        // will never be called if rendered inside
        // an OuterView.
      }
    });
    ```
  
    ### Handlebars `{{action}}` Helper
  
    See `Handlebars.helpers.action`.
  
    ### Event Names
  
    All of the event handling approaches described above respond to the same set
    of events. The names of the built-in events are listed below. (The hash of
    built-in events exists in `Ember.EventDispatcher`.) Additional, custom events
    can be registered by using `Ember.Application.customEvents`.
  
    Touch events:
  
    * `touchStart`
    * `touchMove`
    * `touchEnd`
    * `touchCancel`
  
    Keyboard events
  
    * `keyDown`
    * `keyUp`
    * `keyPress`
  
    Mouse events
  
    * `mouseDown`
    * `mouseUp`
    * `contextMenu`
    * `click`
    * `doubleClick`
    * `mouseMove`
    * `focusIn`
    * `focusOut`
    * `mouseEnter`
    * `mouseLeave`
  
    Form events:
  
    * `submit`
    * `change`
    * `focusIn`
    * `focusOut`
    * `input`
  
    HTML5 drag and drop events:
  
    * `dragStart`
    * `drag`
    * `dragEnter`
    * `dragLeave`
    * `drop`
    * `dragEnd`
  
    ## Handlebars `{{view}}` Helper
  
    Other `Ember.View` instances can be included as part of a view's template by
    using the `{{view}}` Handlebars helper. See `Handlebars.helpers.view` for
    additional information.
  
    @class View
    @namespace Ember
    @extends Ember.CoreView
  */
  Ember.View = Ember.CoreView.extend(
  /** @scope Ember.View.prototype */ {
  
    concatenatedProperties: ['classNames', 'classNameBindings', 'attributeBindings'],
  
    /**
      @property isView
      @type Boolean
      @default true
      @final
    */
    isView: true,
  
    // ..........................................................
    // TEMPLATE SUPPORT
    //
  
    /**
      The name of the template to lookup if no template is provided.
  
      `Ember.View` will look for a template with this name in this view's
      `templates` object. By default, this will be a global object
      shared in `Ember.TEMPLATES`.
  
      @property templateName
      @type String
      @default null
    */
    templateName: null,
  
    /**
      The name of the layout to lookup if no layout is provided.
  
      `Ember.View` will look for a template with this name in this view's
      `templates` object. By default, this will be a global object
      shared in `Ember.TEMPLATES`.
  
      @property layoutName
      @type String
      @default null
    */
    layoutName: null,
  
    /**
      The hash in which to look for `templateName`.
  
      @property templates
      @type Ember.Object
      @default Ember.TEMPLATES
    */
    templates: Ember.TEMPLATES,
  
    /**
      The template used to render the view. This should be a function that
      accepts an optional context parameter and returns a string of HTML that
      will be inserted into the DOM relative to its parent view.
  
      In general, you should set the `templateName` property instead of setting
      the template yourself.
  
      @property template
      @type Function
    */
    template: Ember.computed(function(key, value) {
      if (value !== undefined) { return value; }
  
      var templateName = get(this, 'templateName'),
          template = this.templateForName(templateName, 'template');
  
      Ember.assert("You specified the templateName " + templateName + " for " + this + ", but it did not exist.", !templateName || template);
  
      return template || get(this, 'defaultTemplate');
    }).property('templateName'),
  
    /**
      The controller managing this view. If this property is set, it will be
      made available for use by the template.
  
      @property controller
      @type Object
    */
    controller: Ember.computed(function(key) {
      var parentView = get(this, '_parentView');
      return parentView ? get(parentView, 'controller') : null;
    }).property('_parentView'),
  
    /**
      A view may contain a layout. A layout is a regular template but
      supersedes the `template` property during rendering. It is the
      responsibility of the layout template to retrieve the `template`
      property from the view (or alternatively, call `Handlebars.helpers.yield`,
      `{{yield}}`) to render it in the correct location.
  
      This is useful for a view that has a shared wrapper, but which delegates
      the rendering of the contents of the wrapper to the `template` property
      on a subclass.
  
      @property layout
      @type Function
    */
    layout: Ember.computed(function(key) {
      var layoutName = get(this, 'layoutName'),
          layout = this.templateForName(layoutName, 'layout');
  
      Ember.assert("You specified the layoutName " + layoutName + " for " + this + ", but it did not exist.", !layoutName || layout);
  
      return layout || get(this, 'defaultLayout');
    }).property('layoutName'),
  
    templateForName: function(name, type) {
      if (!name) { return; }
      Ember.assert("templateNames are not allowed to contain periods: "+name, name.indexOf('.') === -1);
  
      // the defaultContainer is deprecated
      var container = this.container || (Ember.Container && Ember.Container.defaultContainer);
      return container && container.lookup('template:' + name);
    },
  
    /**
      The object from which templates should access properties.
  
      This object will be passed to the template function each time the render
      method is called, but it is up to the individual function to decide what
      to do with it.
  
      By default, this will be the view's controller.
  
      @property context
      @type Object
    */
    context: Ember.computed(function(key, value) {
      if (arguments.length === 2) {
        set(this, '_context', value);
        return value;
      } else {
        return get(this, '_context');
      }
    }).volatile(),
  
    /**
      @private
  
      Private copy of the view's template context. This can be set directly
      by Handlebars without triggering the observer that causes the view
      to be re-rendered.
  
      The context of a view is looked up as follows:
  
      1. Supplied context (usually by Handlebars)
      2. Specified controller
      3. `parentView`'s context (for a child of a ContainerView)
  
      The code in Handlebars that overrides the `_context` property first
      checks to see whether the view has a specified controller. This is
      something of a hack and should be revisited.
  
      @property _context
    */
    _context: Ember.computed(function(key) {
      var parentView, controller;
  
      if (controller = get(this, 'controller')) {
        return controller;
      }
  
      parentView = this._parentView;
      if (parentView) {
        return get(parentView, '_context');
      }
  
      return null;
    }),
  
    /**
      @private
  
      If a value that affects template rendering changes, the view should be
      re-rendered to reflect the new value.
  
      @method _contextDidChange
    */
    _contextDidChange: Ember.observer(function() {
      this.rerender();
    }, 'context'),
  
    /**
      If `false`, the view will appear hidden in DOM.
  
      @property isVisible
      @type Boolean
      @default null
    */
    isVisible: true,
  
    /**
      @private
  
      Array of child views. You should never edit this array directly.
      Instead, use `appendChild` and `removeFromParent`.
  
      @property childViews
      @type Array
      @default []
    */
    childViews: childViewsProperty,
  
    _childViews: EMPTY_ARRAY,
  
    // When it's a virtual view, we need to notify the parent that their
    // childViews will change.
    _childViewsWillChange: Ember.beforeObserver(function() {
      if (this.isVirtual) {
        var parentView = get(this, 'parentView');
        if (parentView) { Ember.propertyWillChange(parentView, 'childViews'); }
      }
    }, 'childViews'),
  
    // When it's a virtual view, we need to notify the parent that their
    // childViews did change.
    _childViewsDidChange: Ember.observer(function() {
      if (this.isVirtual) {
        var parentView = get(this, 'parentView');
        if (parentView) { Ember.propertyDidChange(parentView, 'childViews'); }
      }
    }, 'childViews'),
  
    /**
      Return the nearest ancestor that is an instance of the provided
      class.
  
      @property nearestInstanceOf
      @param {Class} klass Subclass of Ember.View (or Ember.View itself)
      @return Ember.View
      @deprecated
    */
    nearestInstanceOf: function(klass) {
      Ember.deprecate("nearestInstanceOf is deprecated and will be removed from future releases. Use nearestOfType.");
      var view = get(this, 'parentView');
  
      while (view) {
        if(view instanceof klass) { return view; }
        view = get(view, 'parentView');
      }
    },
  
    /**
      Return the nearest ancestor that is an instance of the provided
      class or mixin.
  
      @property nearestOfType
      @param {Class,Mixin} klass Subclass of Ember.View (or Ember.View itself),
             or an instance of Ember.Mixin.
      @return Ember.View
    */
    nearestOfType: function(klass) {
      var view = get(this, 'parentView'),
          isOfType = klass instanceof Ember.Mixin ?
                     function(view) { return klass.detect(view); } :
                     function(view) { return klass.detect(view.constructor); };
  
      while (view) {
        if( isOfType(view) ) { return view; }
        view = get(view, 'parentView');
      }
    },
  
    /**
      Return the nearest ancestor that has a given property.
  
      @property nearestWithProperty
      @param {String} property A property name
      @return Ember.View
    */
    nearestWithProperty: function(property) {
      var view = get(this, 'parentView');
  
      while (view) {
        if (property in view) { return view; }
        view = get(view, 'parentView');
      }
    },
  
    /**
      Return the nearest ancestor whose parent is an instance of
      `klass`.
  
      @property nearestChildOf
      @param {Class} klass Subclass of Ember.View (or Ember.View itself)
      @return Ember.View
    */
    nearestChildOf: function(klass) {
      var view = get(this, 'parentView');
  
      while (view) {
        if(get(view, 'parentView') instanceof klass) { return view; }
        view = get(view, 'parentView');
      }
    },
  
    /**
      @private
  
      When the parent view changes, recursively invalidate `controller`
  
      @method _parentViewDidChange
    */
    _parentViewDidChange: Ember.observer(function() {
      if (this.isDestroying) { return; }
  
      this.trigger('parentViewDidChange');
  
      if (get(this, 'parentView.controller') && !get(this, 'controller')) {
        this.notifyPropertyChange('controller');
      }
    }, '_parentView'),
  
    _controllerDidChange: Ember.observer(function() {
      if (this.isDestroying) { return; }
  
      this.rerender();
  
      this.forEachChildView(function(view) {
        view.propertyDidChange('controller');
      });
    }, 'controller'),
  
    cloneKeywords: function() {
      var templateData = get(this, 'templateData');
  
      var keywords = templateData ? Ember.copy(templateData.keywords) : {};
      set(keywords, 'view', get(this, 'concreteView'));
      set(keywords, '_view', this);
      set(keywords, 'controller', get(this, 'controller'));
  
      return keywords;
    },
  
    /**
      Called on your view when it should push strings of HTML into a
      `Ember.RenderBuffer`. Most users will want to override the `template`
      or `templateName` properties instead of this method.
  
      By default, `Ember.View` will look for a function in the `template`
      property and invoke it with the value of `context`. The value of
      `context` will be the view's controller unless you override it.
  
      @method render
      @param {Ember.RenderBuffer} buffer The render buffer
    */
    render: function(buffer) {
      // If this view has a layout, it is the responsibility of the
      // the layout to render the view's template. Otherwise, render the template
      // directly.
      var template = get(this, 'layout') || get(this, 'template');
  
      if (template) {
        var context = get(this, 'context');
        var keywords = this.cloneKeywords();
        var output;
  
        var data = {
          view: this,
          buffer: buffer,
          isRenderData: true,
          keywords: keywords,
          insideGroup: get(this, 'templateData.insideGroup')
        };
  
        // Invoke the template with the provided template context, which
        // is the view's controller by default. A hash of data is also passed that provides
        // the template with access to the view and render buffer.
  
        Ember.assert('template must be a function. Did you mean to call Ember.Handlebars.compile("...") or specify templateName instead?', typeof template === 'function');
        // The template should write directly to the render buffer instead
        // of returning a string.
        output = template(context, { data: data });
  
        // If the template returned a string instead of writing to the buffer,
        // push the string onto the buffer.
        if (output !== undefined) { buffer.push(output); }
      }
    },
  
    /**
      Renders the view again. This will work regardless of whether the
      view is already in the DOM or not. If the view is in the DOM, the
      rendering process will be deferred to give bindings a chance
      to synchronize.
  
      If children were added during the rendering process using `appendChild`,
      `rerender` will remove them, because they will be added again
      if needed by the next `render`.
  
      In general, if the display of your view changes, you should modify
      the DOM element directly instead of manually calling `rerender`, which can
      be slow.
  
      @method rerender
    */
    rerender: function() {
      return this.currentState.rerender(this);
    },
  
    clearRenderedChildren: function() {
      var lengthBefore = this.lengthBeforeRender,
          lengthAfter  = this.lengthAfterRender;
  
      // If there were child views created during the last call to render(),
      // remove them under the assumption that they will be re-created when
      // we re-render.
  
      // VIEW-TODO: Unit test this path.
      var childViews = this._childViews;
      for (var i=lengthAfter-1; i>=lengthBefore; i--) {
        if (childViews[i]) { childViews[i].destroy(); }
      }
    },
  
    /**
      @private
  
      Iterates over the view's `classNameBindings` array, inserts the value
      of the specified property into the `classNames` array, then creates an
      observer to update the view's element if the bound property ever changes
      in the future.
  
      @method _applyClassNameBindings
    */
    _applyClassNameBindings: function(classBindings) {
      var classNames = this.classNames,
      elem, newClass, dasherizedClass;
  
      // Loop through all of the configured bindings. These will be either
      // property names ('isUrgent') or property paths relative to the view
      // ('content.isUrgent')
      a_forEach(classBindings, function(binding) {
  
        // Variable in which the old class value is saved. The observer function
        // closes over this variable, so it knows which string to remove when
        // the property changes.
        var oldClass;
        // Extract just the property name from bindings like 'foo:bar'
        var parsedPath = Ember.View._parsePropertyPath(binding);
  
        // Set up an observer on the context. If the property changes, toggle the
        // class name.
        var observer = function() {
          // Get the current value of the property
          newClass = this._classStringForProperty(binding);
          elem = this.$();
  
          // If we had previously added a class to the element, remove it.
          if (oldClass) {
            elem.removeClass(oldClass);
            // Also remove from classNames so that if the view gets rerendered,
            // the class doesn't get added back to the DOM.
            classNames.removeObject(oldClass);
          }
  
          // If necessary, add a new class. Make sure we keep track of it so
          // it can be removed in the future.
          if (newClass) {
            elem.addClass(newClass);
            oldClass = newClass;
          } else {
            oldClass = null;
          }
        };
  
        // Get the class name for the property at its current value
        dasherizedClass = this._classStringForProperty(binding);
  
        if (dasherizedClass) {
          // Ensure that it gets into the classNames array
          // so it is displayed when we render.
          a_addObject(classNames, dasherizedClass);
  
          // Save a reference to the class name so we can remove it
          // if the observer fires. Remember that this variable has
          // been closed over by the observer.
          oldClass = dasherizedClass;
        }
  
        this.registerObserver(this, parsedPath.path, observer);
        // Remove className so when the view is rerendered,
        // the className is added based on binding reevaluation
        this.one('willClearRender', function() {
          if (oldClass) {
            classNames.removeObject(oldClass);
            oldClass = null;
          }
        });
  
      }, this);
    },
  
    /**
      @private
  
      Iterates through the view's attribute bindings, sets up observers for each,
      then applies the current value of the attributes to the passed render buffer.
  
      @method _applyAttributeBindings
      @param {Ember.RenderBuffer} buffer
    */
    _applyAttributeBindings: function(buffer, attributeBindings) {
      var attributeValue, elem;
  
      a_forEach(attributeBindings, function(binding) {
        var split = binding.split(':'),
            property = split[0],
            attributeName = split[1] || property;
  
        // Create an observer to add/remove/change the attribute if the
        // JavaScript property changes.
        var observer = function() {
          elem = this.$();
  
          attributeValue = get(this, property);
  
          Ember.View.applyAttributeBindings(elem, attributeName, attributeValue);
        };
  
        this.registerObserver(this, property, observer);
  
        // Determine the current value and add it to the render buffer
        // if necessary.
        attributeValue = get(this, property);
        Ember.View.applyAttributeBindings(buffer, attributeName, attributeValue);
      }, this);
    },
  
    /**
      @private
  
      Given a property name, returns a dasherized version of that
      property name if the property evaluates to a non-falsy value.
  
      For example, if the view has property `isUrgent` that evaluates to true,
      passing `isUrgent` to this method will return `"is-urgent"`.
  
      @method _classStringForProperty
      @param property
    */
    _classStringForProperty: function(property) {
      var parsedPath = Ember.View._parsePropertyPath(property);
      var path = parsedPath.path;
  
      var val = get(this, path);
      if (val === undefined && Ember.isGlobalPath(path)) {
        val = get(Ember.lookup, path);
      }
  
      return Ember.View._classStringForValue(path, val, parsedPath.className, parsedPath.falsyClassName);
    },
  
    // ..........................................................
    // ELEMENT SUPPORT
    //
  
    /**
      Returns the current DOM element for the view.
  
      @property element
      @type DOMElement
    */
    element: Ember.computed(function(key, value) {
      if (value !== undefined) {
        return this.currentState.setElement(this, value);
      } else {
        return this.currentState.getElement(this);
      }
    }).property('_parentView'),
  
    /**
      Returns a jQuery object for this view's element. If you pass in a selector
      string, this method will return a jQuery object, using the current element
      as its buffer.
  
      For example, calling `view.$('li')` will return a jQuery object containing
      all of the `li` elements inside the DOM element of this view.
  
      @method $
      @param {String} [selector] a jQuery-compatible selector string
      @return {jQuery} the jQuery object for the DOM node
    */
    $: function(sel) {
      return this.currentState.$(this, sel);
    },
  
    mutateChildViews: function(callback) {
      var childViews = this._childViews,
          idx = childViews.length,
          view;
  
      while(--idx >= 0) {
        view = childViews[idx];
        callback(this, view, idx);
      }
  
      return this;
    },
  
    forEachChildView: function(callback) {
      var childViews = this._childViews;
  
      if (!childViews) { return this; }
  
      var len = childViews.length,
          view, idx;
  
      for (idx = 0; idx < len; idx++) {
        view = childViews[idx];
        callback(view);
      }
  
      return this;
    },
  
    /**
      Appends the view's element to the specified parent element.
  
      If the view does not have an HTML representation yet, `createElement()`
      will be called automatically.
  
      Note that this method just schedules the view to be appended; the DOM
      element will not be appended to the given element until all bindings have
      finished synchronizing.
  
      This is not typically a function that you will need to call directly when
      building your application. You might consider using `Ember.ContainerView`
      instead. If you do need to use `appendTo`, be sure that the target element
      you are providing is associated with an `Ember.Application` and does not
      have an ancestor element that is associated with an Ember view.
  
      @method appendTo
      @param {String|DOMElement|jQuery} A selector, element, HTML string, or jQuery object
      @return {Ember.View} receiver
    */
    appendTo: function(target) {
      // Schedule the DOM element to be created and appended to the given
      // element after bindings have synchronized.
      this._insertElementLater(function() {
        Ember.assert("You cannot append to an existing Ember.View. Consider using Ember.ContainerView instead.", !Ember.$(target).is('.ember-view') && !Ember.$(target).parents().is('.ember-view'));
        this.$().appendTo(target);
      });
  
      return this;
    },
  
    /**
      Replaces the content of the specified parent element with this view's
      element. If the view does not have an HTML representation yet,
      `createElement()` will be called automatically.
  
      Note that this method just schedules the view to be appended; the DOM
      element will not be appended to the given element until all bindings have
      finished synchronizing
  
      @method replaceIn
      @param {String|DOMElement|jQuery} A selector, element, HTML string, or jQuery object
      @return {Ember.View} received
    */
    replaceIn: function(target) {
      Ember.assert("You cannot replace an existing Ember.View. Consider using Ember.ContainerView instead.", !Ember.$(target).is('.ember-view') && !Ember.$(target).parents().is('.ember-view'));
  
      this._insertElementLater(function() {
        Ember.$(target).empty();
        this.$().appendTo(target);
      });
  
      return this;
    },
  
    /**
      @private
  
      Schedules a DOM operation to occur during the next render phase. This
      ensures that all bindings have finished synchronizing before the view is
      rendered.
  
      To use, pass a function that performs a DOM operation.
  
      Before your function is called, this view and all child views will receive
      the `willInsertElement` event. After your function is invoked, this view
      and all of its child views will receive the `didInsertElement` event.
  
      ```javascript
      view._insertElementLater(function() {
        this.createElement();
        this.$().appendTo('body');
      });
      ```
  
      @method _insertElementLater
      @param {Function} fn the function that inserts the element into the DOM
    */
    _insertElementLater: function(fn) {
      this._scheduledInsert = Ember.run.scheduleOnce('render', this, '_insertElement', fn);
    },
  
    _insertElement: function (fn) {
      this._scheduledInsert = null;
      this.currentState.insertElement(this, fn);
    },
  
    /**
      Appends the view's element to the document body. If the view does
      not have an HTML representation yet, `createElement()` will be called
      automatically.
  
      If your application uses the `rootElement` property, you must append
      the view within that element. Rendering views outside of the `rootElement`
      is not supported.
  
      Note that this method just schedules the view to be appended; the DOM
      element will not be appended to the document body until all bindings have
      finished synchronizing.
  
      @method append
      @return {Ember.View} receiver
    */
    append: function() {
      return this.appendTo(document.body);
    },
  
    /**
      Removes the view's element from the element to which it is attached.
  
      @method remove
      @return {Ember.View} receiver
    */
    remove: function() {
      // What we should really do here is wait until the end of the run loop
      // to determine if the element has been re-appended to a different
      // element.
      // In the interim, we will just re-render if that happens. It is more
      // important than elements get garbage collected.
      if (!this.removedFromDOM) { this.destroyElement(); }
      this.invokeRecursively(function(view) {
        if (view.clearRenderedChildren) { view.clearRenderedChildren(); }
      });
    },
  
    elementId: null,
  
    /**
      Attempts to discover the element in the parent element. The default
      implementation looks for an element with an ID of `elementId` (or the
      view's guid if `elementId` is null). You can override this method to
      provide your own form of lookup. For example, if you want to discover your
      element using a CSS class name instead of an ID.
  
      @method findElementInParentElement
      @param {DOMElement} parentElement The parent's DOM element
      @return {DOMElement} The discovered element
    */
    findElementInParentElement: function(parentElem) {
      var id = "#" + this.elementId;
      return Ember.$(id)[0] || Ember.$(id, parentElem)[0];
    },
  
    /**
      Creates a DOM representation of the view and all of its
      child views by recursively calling the `render()` method.
  
      After the element has been created, `didInsertElement` will
      be called on this view and all of its child views.
  
      @method createElement
      @return {Ember.View} receiver
    */
    createElement: function() {
      if (get(this, 'element')) { return this; }
  
      var buffer = this.renderToBuffer();
      set(this, 'element', buffer.element());
  
      return this;
    },
  
    /**
      Called when a view is going to insert an element into the DOM.
  
      @event willInsertElement
    */
    willInsertElement: Ember.K,
  
    /**
      Called when the element of the view has been inserted into the DOM
      or after the view was re-rendered. Override this function to do any
      set up that requires an element in the document body.
  
      @event didInsertElement
    */
    didInsertElement: Ember.K,
  
    /**
      Called when the view is about to rerender, but before anything has
      been torn down. This is a good opportunity to tear down any manual
      observers you have installed based on the DOM state
  
      @event willClearRender
    */
    willClearRender: Ember.K,
  
    /**
      @private
  
      Run this callback on the current view (unless includeSelf is false) and recursively on child views.
  
      @method invokeRecursively
      @param fn {Function}
      @param includeSelf (optional, default true)
    */
    invokeRecursively: function(fn, includeSelf) {
      var childViews = (includeSelf === false) ? this._childViews : [this];
      var currentViews, view;
  
      while (childViews.length) {
        currentViews = childViews.slice();
        childViews = [];
  
        for (var i=0, l=currentViews.length; i<l; i++) {
          view = currentViews[i];
          fn(view);
          if (view._childViews) {
            childViews.push.apply(childViews, view._childViews);
          }
        }
      }
    },
  
    triggerRecursively: function(eventName) {
      var childViews = [this], currentViews, view;
  
      while (childViews.length) {
        currentViews = childViews.slice();
        childViews = [];
  
        for (var i=0, l=currentViews.length; i<l; i++) {
          view = currentViews[i];
          if (view.trigger) { view.trigger(eventName); }
          if (view._childViews) {
            childViews.push.apply(childViews, view._childViews);
          }
        }
      }
    },
  
    viewHierarchyCollection: function() {
      var currentView, viewCollection = new ViewCollection([this]);
  
      for (var i = 0; i < viewCollection.length; i++) {
        currentView = viewCollection.objectAt(i);
        if (currentView._childViews) {
          viewCollection.push.apply(viewCollection, currentView._childViews);
        }
      }
  
      return viewCollection;
    },
  
    /**
      Destroys any existing element along with the element for any child views
      as well. If the view does not currently have a element, then this method
      will do nothing.
  
      If you implement `willDestroyElement()` on your view, then this method will
      be invoked on your view before your element is destroyed to give you a
      chance to clean up any event handlers, etc.
  
      If you write a `willDestroyElement()` handler, you can assume that your
      `didInsertElement()` handler was called earlier for the same element.
  
      Normally you will not call or override this method yourself, but you may
      want to implement the above callbacks when it is run.
  
      @method destroyElement
      @return {Ember.View} receiver
    */
    destroyElement: function() {
      return this.currentState.destroyElement(this);
    },
  
    /**
      Called when the element of the view is going to be destroyed. Override
      this function to do any teardown that requires an element, like removing
      event listeners.
  
      @event willDestroyElement
    */
    willDestroyElement: function() {},
  
    /**
      @private
  
      Triggers the `willDestroyElement` event (which invokes the
      `willDestroyElement()` method if it exists) on this view and all child
      views.
  
      Before triggering `willDestroyElement`, it first triggers the
      `willClearRender` event recursively.
  
      @method _notifyWillDestroyElement
    */
    _notifyWillDestroyElement: function() {
      var viewCollection = this.viewHierarchyCollection();
      viewCollection.trigger('willClearRender');
      viewCollection.trigger('willDestroyElement');
      return viewCollection;
    },
  
    _elementWillChange: Ember.beforeObserver(function() {
      this.forEachChildView(function(view) {
        Ember.propertyWillChange(view, 'element');
      });
    }, 'element'),
  
    /**
      @private
  
      If this view's element changes, we need to invalidate the caches of our
      child views so that we do not retain references to DOM elements that are
      no longer needed.
  
      @method _elementDidChange
    */
    _elementDidChange: Ember.observer(function() {
      this.forEachChildView(function(view) {
        Ember.propertyDidChange(view, 'element');
      });
    }, 'element'),
  
    /**
      Called when the parentView property has changed.
  
      @event parentViewDidChange
    */
    parentViewDidChange: Ember.K,
  
    instrumentName: 'view',
  
    instrumentDetails: function(hash) {
      hash.template = get(this, 'templateName');
      this._super(hash);
    },
  
    _renderToBuffer: function(parentBuffer, bufferOperation) {
      this.lengthBeforeRender = this._childViews.length;
      var buffer = this._super(parentBuffer, bufferOperation);
      this.lengthAfterRender = this._childViews.length;
  
      return buffer;
    },
  
    renderToBufferIfNeeded: function (buffer) {
      return this.currentState.renderToBufferIfNeeded(this, buffer);
    },
  
    beforeRender: function(buffer) {
      this.applyAttributesToBuffer(buffer);
      buffer.pushOpeningTag();
    },
  
    afterRender: function(buffer) {
      buffer.pushClosingTag();
    },
  
    applyAttributesToBuffer: function(buffer) {
      // Creates observers for all registered class name and attribute bindings,
      // then adds them to the element.
      var classNameBindings = get(this, 'classNameBindings');
      if (classNameBindings.length) {
        this._applyClassNameBindings(classNameBindings);
      }
  
      // Pass the render buffer so the method can apply attributes directly.
      // This isn't needed for class name bindings because they use the
      // existing classNames infrastructure.
      var attributeBindings = get(this, 'attributeBindings');
      if (attributeBindings.length) {
        this._applyAttributeBindings(buffer, attributeBindings);
      }
  
      buffer.setClasses(this.classNames);
      buffer.id(this.elementId);
  
      var role = get(this, 'ariaRole');
      if (role) {
        buffer.attr('role', role);
      }
  
      if (get(this, 'isVisible') === false) {
        buffer.style('display', 'none');
      }
    },
  
    // ..........................................................
    // STANDARD RENDER PROPERTIES
    //
  
    /**
      Tag name for the view's outer element. The tag name is only used when an
      element is first created. If you change the `tagName` for an element, you
      must destroy and recreate the view element.
  
      By default, the render buffer will use a `<div>` tag for views.
  
      @property tagName
      @type String
      @default null
    */
  
    // We leave this null by default so we can tell the difference between
    // the default case and a user-specified tag.
    tagName: null,
  
    /**
      The WAI-ARIA role of the control represented by this view. For example, a
      button may have a role of type 'button', or a pane may have a role of
      type 'alertdialog'. This property is used by assistive software to help
      visually challenged users navigate rich web applications.
  
      The full list of valid WAI-ARIA roles is available at:
      http://www.w3.org/TR/wai-aria/roles#roles_categorization
  
      @property ariaRole
      @type String
      @default null
    */
    ariaRole: null,
  
    /**
      Standard CSS class names to apply to the view's outer element. This
      property automatically inherits any class names defined by the view's
      superclasses as well.
  
      @property classNames
      @type Array
      @default ['ember-view']
    */
    classNames: ['ember-view'],
  
    /**
      A list of properties of the view to apply as class names. If the property
      is a string value, the value of that string will be applied as a class
      name.
  
      ```javascript
      // Applies the 'high' class to the view element
      Ember.View.create({
        classNameBindings: ['priority']
        priority: 'high'
      });
      ```
  
      If the value of the property is a Boolean, the name of that property is
      added as a dasherized class name.
  
      ```javascript
      // Applies the 'is-urgent' class to the view element
      Ember.View.create({
        classNameBindings: ['isUrgent']
        isUrgent: true
      });
      ```
  
      If you would prefer to use a custom value instead of the dasherized
      property name, you can pass a binding like this:
  
      ```javascript
      // Applies the 'urgent' class to the view element
      Ember.View.create({
        classNameBindings: ['isUrgent:urgent']
        isUrgent: true
      });
      ```
  
      This list of properties is inherited from the view's superclasses as well.
  
      @property classNameBindings
      @type Array
      @default []
    */
    classNameBindings: EMPTY_ARRAY,
  
    /**
      A list of properties of the view to apply as attributes. If the property is
      a string value, the value of that string will be applied as the attribute.
  
      ```javascript
      // Applies the type attribute to the element
      // with the value "button", like <div type="button">
      Ember.View.create({
        attributeBindings: ['type'],
        type: 'button'
      });
      ```
  
      If the value of the property is a Boolean, the name of that property is
      added as an attribute.
  
      ```javascript
      // Renders something like <div enabled="enabled">
      Ember.View.create({
        attributeBindings: ['enabled'],
        enabled: true
      });
      ```
  
      @property attributeBindings
    */
    attributeBindings: EMPTY_ARRAY,
  
    // .......................................................
    // CORE DISPLAY METHODS
    //
  
    /**
      @private
  
      Setup a view, but do not finish waking it up.
      - configure `childViews`
      - register the view with the global views hash, which is used for event
        dispatch
  
      @method init
    */
    init: function() {
      this.elementId = this.elementId || guidFor(this);
  
      this._super();
  
      // setup child views. be sure to clone the child views array first
      this._childViews = this._childViews.slice();
  
      Ember.assert("Only arrays are allowed for 'classNameBindings'", Ember.typeOf(this.classNameBindings) === 'array');
      this.classNameBindings = Ember.A(this.classNameBindings.slice());
  
      Ember.assert("Only arrays are allowed for 'classNames'", Ember.typeOf(this.classNames) === 'array');
      this.classNames = Ember.A(this.classNames.slice());
  
      var viewController = get(this, 'viewController');
      if (viewController) {
        viewController = get(viewController);
        if (viewController) {
          set(viewController, 'view', this);
        }
      }
    },
  
    appendChild: function(view, options) {
      return this.currentState.appendChild(this, view, options);
    },
  
    /**
      Removes the child view from the parent view.
  
      @method removeChild
      @param {Ember.View} view
      @return {Ember.View} receiver
    */
    removeChild: function(view) {
      // If we're destroying, the entire subtree will be
      // freed, and the DOM will be handled separately,
      // so no need to mess with childViews.
      if (this.isDestroying) { return; }
  
      // update parent node
      set(view, '_parentView', null);
  
      // remove view from childViews array.
      var childViews = this._childViews;
  
      Ember.EnumerableUtils.removeObject(childViews, view);
  
      this.propertyDidChange('childViews'); // HUH?! what happened to will change?
  
      return this;
    },
  
    /**
      Removes all children from the `parentView`.
  
      @method removeAllChildren
      @return {Ember.View} receiver
    */
    removeAllChildren: function() {
      return this.mutateChildViews(function(parentView, view) {
        parentView.removeChild(view);
      });
    },
  
    destroyAllChildren: function() {
      return this.mutateChildViews(function(parentView, view) {
        view.destroy();
      });
    },
  
    /**
      Removes the view from its `parentView`, if one is found. Otherwise
      does nothing.
  
      @method removeFromParent
      @return {Ember.View} receiver
    */
    removeFromParent: function() {
      var parent = this._parentView;
  
      // Remove DOM element from parent
      this.remove();
  
      if (parent) { parent.removeChild(this); }
      return this;
    },
  
    /**
      You must call `destroy` on a view to destroy the view (and all of its
      child views). This will remove the view from any parent node, then make
      sure that the DOM element managed by the view can be released by the
      memory manager.
  
      @method destroy
    */
    destroy: function() {
      var childViews = this._childViews,
          // get parentView before calling super because it'll be destroyed
          nonVirtualParentView = get(this, 'parentView'),
          viewName = this.viewName,
          childLen, i;
  
      if (!this._super()) { return; }
  
      childLen = childViews.length;
      for (i=childLen-1; i>=0; i--) {
        childViews[i].removedFromDOM = true;
      }
  
      // remove from non-virtual parent view if viewName was specified
      if (viewName && nonVirtualParentView) {
        nonVirtualParentView.set(viewName, null);
      }
  
      childLen = childViews.length;
      for (i=childLen-1; i>=0; i--) {
        childViews[i].destroy();
      }
  
      return this;
    },
  
    /**
      Instantiates a view to be added to the childViews array during view
      initialization. You generally will not call this method directly unless
      you are overriding `createChildViews()`. Note that this method will
      automatically configure the correct settings on the new view instance to
      act as a child of the parent.
  
      @method createChildView
      @param {Class} viewClass
      @param {Hash} [attrs] Attributes to add
      @return {Ember.View} new instance
    */
    createChildView: function(view, attrs) {
      if (view.isView && view._parentView === this && view.container === this.container) {
        return view;
      }
  
      attrs = attrs || {};
      attrs._parentView = this;
      attrs.container = this.container;
  
      if (Ember.CoreView.detect(view)) {
        attrs.templateData = attrs.templateData || get(this, 'templateData');
  
        view = view.create(attrs);
  
        // don't set the property on a virtual view, as they are invisible to
        // consumers of the view API
        if (view.viewName) {
          set(get(this, 'concreteView'), view.viewName, view);
        }
      } else {
        Ember.assert('You must pass instance or subclass of View', view.isView);
  
        Ember.setProperties(view, attrs);
  
        if (!get(view, 'templateData')) {
          set(view, 'templateData', get(this, 'templateData'));
        }
      }
  
      return view;
    },
  
    becameVisible: Ember.K,
    becameHidden: Ember.K,
  
    /**
      @private
  
      When the view's `isVisible` property changes, toggle the visibility
      element of the actual DOM element.
  
      @method _isVisibleDidChange
    */
    _isVisibleDidChange: Ember.observer(function() {
      var $el = this.$();
      if (!$el) { return; }
  
      var isVisible = get(this, 'isVisible');
  
      $el.toggle(isVisible);
  
      if (this._isAncestorHidden()) { return; }
  
      if (isVisible) {
        this._notifyBecameVisible();
      } else {
        this._notifyBecameHidden();
      }
    }, 'isVisible'),
  
    _notifyBecameVisible: function() {
      this.trigger('becameVisible');
  
      this.forEachChildView(function(view) {
        var isVisible = get(view, 'isVisible');
  
        if (isVisible || isVisible === null) {
          view._notifyBecameVisible();
        }
      });
    },
  
    _notifyBecameHidden: function() {
      this.trigger('becameHidden');
      this.forEachChildView(function(view) {
        var isVisible = get(view, 'isVisible');
  
        if (isVisible || isVisible === null) {
          view._notifyBecameHidden();
        }
      });
    },
  
    _isAncestorHidden: function() {
      var parent = get(this, 'parentView');
  
      while (parent) {
        if (get(parent, 'isVisible') === false) { return true; }
  
        parent = get(parent, 'parentView');
      }
  
      return false;
    },
  
    clearBuffer: function() {
      this.invokeRecursively(function(view) {
        view.buffer = null;
      });
    },
  
    transitionTo: function(state, children) {
      var priorState = this.currentState,
          currentState = this.currentState = this.states[state];
      this.state = state;
  
      if (priorState && priorState.exit) { priorState.exit(this); }
      if (currentState.enter) { currentState.enter(this); }
  
      if (children !== false) {
        this.forEachChildView(function(view) {
          view.transitionTo(state);
        });
      }
    },
  
    // .......................................................
    // EVENT HANDLING
    //
  
    /**
      @private
  
      Handle events from `Ember.EventDispatcher`
  
      @method handleEvent
      @param eventName {String}
      @param evt {Event}
    */
    handleEvent: function(eventName, evt) {
      return this.currentState.handleEvent(this, eventName, evt);
    },
  
    registerObserver: function(root, path, target, observer) {
      if (!observer && 'function' === typeof target) {
        observer = target;
        target = null;
      }
  
      var view = this,
          stateCheckedObserver = function(){
            view.currentState.invokeObserver(this, observer);
          },
          scheduledObserver = function() {
            Ember.run.scheduleOnce('render', this, stateCheckedObserver);
          };
  
      Ember.addObserver(root, path, target, scheduledObserver);
  
      this.one('willClearRender', function() {
        Ember.removeObserver(root, path, target, scheduledObserver);
      });
    }
  
  });
  
  /*
    Describe how the specified actions should behave in the various
    states that a view can exist in. Possible states:
  
    * preRender: when a view is first instantiated, and after its
      element was destroyed, it is in the preRender state
    * inBuffer: once a view has been rendered, but before it has
      been inserted into the DOM, it is in the inBuffer state
    * inDOM: once a view has been inserted into the DOM it is in
      the inDOM state. A view spends the vast majority of its
      existence in this state.
    * destroyed: once a view has been destroyed (using the destroy
      method), it is in this state. No further actions can be invoked
      on a destroyed view.
  */
  
    // in the destroyed state, everything is illegal
  
    // before rendering has begun, all legal manipulations are noops.
  
    // inside the buffer, legal manipulations are done on the buffer
  
    // once the view has been inserted into the DOM, legal manipulations
    // are done on the DOM element.
  
  function notifyMutationListeners() {
    Ember.run.once(Ember.View, 'notifyMutationListeners');
  }
  
  var DOMManager = {
    prepend: function(view, html) {
      view.$().prepend(html);
      notifyMutationListeners();
    },
  
    after: function(view, html) {
      view.$().after(html);
      notifyMutationListeners();
    },
  
    html: function(view, html) {
      view.$().html(html);
      notifyMutationListeners();
    },
  
    replace: function(view) {
      var element = get(view, 'element');
  
      set(view, 'element', null);
  
      view._insertElementLater(function() {
        Ember.$(element).replaceWith(get(view, 'element'));
        notifyMutationListeners();
      });
    },
  
    remove: function(view) {
      view.$().remove();
      notifyMutationListeners();
    },
  
    empty: function(view) {
      view.$().empty();
      notifyMutationListeners();
    }
  };
  
  Ember.View.reopen({
    domManager: DOMManager
  });
  
  Ember.View.reopenClass({
  
    /**
      @private
  
      Parse a path and return an object which holds the parsed properties.
  
      For example a path like "content.isEnabled:enabled:disabled" wil return the
      following object:
  
      ```javascript
      {
        path: "content.isEnabled",
        className: "enabled",
        falsyClassName: "disabled",
        classNames: ":enabled:disabled"
      }
      ```
  
      @method _parsePropertyPath
      @static
    */
    _parsePropertyPath: function(path) {
      var split = path.split(':'),
          propertyPath = split[0],
          classNames = "",
          className,
          falsyClassName;
  
      // check if the property is defined as prop:class or prop:trueClass:falseClass
      if (split.length > 1) {
        className = split[1];
        if (split.length === 3) { falsyClassName = split[2]; }
  
        classNames = ':' + className;
        if (falsyClassName) { classNames += ":" + falsyClassName; }
      }
  
      return {
        path: propertyPath,
        classNames: classNames,
        className: (className === '') ? undefined : className,
        falsyClassName: falsyClassName
      };
    },
  
    /**
      @private
  
      Get the class name for a given value, based on the path, optional
      `className` and optional `falsyClassName`.
  
      - if a `className` or `falsyClassName` has been specified:
        - if the value is truthy and `className` has been specified,
          `className` is returned
        - if the value is falsy and `falsyClassName` has been specified,
          `falsyClassName` is returned
        - otherwise `null` is returned
      - if the value is `true`, the dasherized last part of the supplied path
        is returned
      - if the value is not `false`, `undefined` or `null`, the `value`
        is returned
      - if none of the above rules apply, `null` is returned
  
      @method _classStringForValue
      @param path
      @param val
      @param className
      @param falsyClassName
      @static
    */
    _classStringForValue: function(path, val, className, falsyClassName) {
      // When using the colon syntax, evaluate the truthiness or falsiness
      // of the value to determine which className to return
      if (className || falsyClassName) {
        if (className && !!val) {
          return className;
  
        } else if (falsyClassName && !val) {
          return falsyClassName;
  
        } else {
          return null;
        }
  
      // If value is a Boolean and true, return the dasherized property
      // name.
      } else if (val === true) {
        // Normalize property path to be suitable for use
        // as a class name. For exaple, content.foo.barBaz
        // becomes bar-baz.
        var parts = path.split('.');
        return Ember.String.dasherize(parts[parts.length-1]);
  
      // If the value is not false, undefined, or null, return the current
      // value of the property.
      } else if (val !== false && val != null) {
        return val;
  
      // Nothing to display. Return null so that the old class is removed
      // but no new class is added.
      } else {
        return null;
      }
    }
  });
  
  var mutation = Ember.Object.extend(Ember.Evented).create();
  
  Ember.View.addMutationListener = function(callback) {
    mutation.on('change', callback);
  };
  
  Ember.View.removeMutationListener = function(callback) {
    mutation.off('change', callback);
  };
  
  Ember.View.notifyMutationListeners = function() {
    mutation.trigger('change');
  };
  
  /**
    Global views hash
  
    @property views
    @static
    @type Hash
  */
  Ember.View.views = {};
  
  // If someone overrides the child views computed property when
  // defining their class, we want to be able to process the user's
  // supplied childViews and then restore the original computed property
  // at view initialization time. This happens in Ember.ContainerView's init
  // method.
  Ember.View.childViewsProperty = childViewsProperty;
  
  Ember.View.applyAttributeBindings = function(elem, name, value) {
    var type = Ember.typeOf(value);
  
    // if this changes, also change the logic in ember-handlebars/lib/helpers/binding.js
    if (name !== 'value' && (type === 'string' || (type === 'number' && !isNaN(value)))) {
      if (value !== elem.attr(name)) {
        elem.attr(name, value);
      }
    } else if (name === 'value' || type === 'boolean') {
      // We can't set properties to undefined or null
      if (!value) { value = ''; }
  
      if (value !== elem.prop(name)) {
        // value and booleans should always be properties
        elem.prop(name, value);
      }
    } else if (!value) {
      elem.removeAttr(name);
    }
  };
  
  Ember.View.states = states;
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  var get = Ember.get, set = Ember.set;
  
  Ember.View.states._default = {
    // appendChild is only legal while rendering the buffer.
    appendChild: function() {
      throw "You can't use appendChild outside of the rendering process";
    },
  
    $: function() {
      return undefined;
    },
  
    getElement: function() {
      return null;
    },
  
    // Handle events from `Ember.EventDispatcher`
    handleEvent: function() {
      return true; // continue event propagation
    },
  
    destroyElement: function(view) {
      set(view, 'element', null);
      if (view._scheduledInsert) {
        Ember.run.cancel(view._scheduledInsert);
        view._scheduledInsert = null;
      }
      return view;
    },
  
    renderToBufferIfNeeded: function () {
      return false;
    },
  
    rerender: Ember.K,
    invokeObserver: Ember.K
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  var preRender = Ember.View.states.preRender = Ember.create(Ember.View.states._default);
  
  Ember.merge(preRender, {
    // a view leaves the preRender state once its element has been
    // created (createElement).
    insertElement: function(view, fn) {
      view.createElement();
      var viewCollection = view.viewHierarchyCollection();
  
      viewCollection.trigger('willInsertElement');
      // after createElement, the view will be in the hasElement state.
      fn.call(view);
      viewCollection.transitionTo('inDOM', false);
      viewCollection.trigger('didInsertElement');
    },
  
    renderToBufferIfNeeded: function(view, buffer) {
      view.renderToBuffer(buffer);
      return true;
    },
  
    empty: Ember.K,
  
    setElement: function(view, value) {
      if (value !== null) {
        view.transitionTo('hasElement');
      }
      return value;
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  var get = Ember.get, set = Ember.set;
  
  var inBuffer = Ember.View.states.inBuffer = Ember.create(Ember.View.states._default);
  
  Ember.merge(inBuffer, {
    $: function(view, sel) {
      // if we don't have an element yet, someone calling this.$() is
      // trying to update an element that isn't in the DOM. Instead,
      // rerender the view to allow the render method to reflect the
      // changes.
      view.rerender();
      return Ember.$();
    },
  
    // when a view is rendered in a buffer, rerendering it simply
    // replaces the existing buffer with a new one
    rerender: function(view) {
      throw new Ember.Error("Something you did caused a view to re-render after it rendered but before it was inserted into the DOM.");
    },
  
    // when a view is rendered in a buffer, appending a child
    // view will render that view and append the resulting
    // buffer into its buffer.
    appendChild: function(view, childView, options) {
      var buffer = view.buffer, _childViews = view._childViews;
  
      childView = view.createChildView(childView, options);
      if (!_childViews.length) { _childViews = view._childViews = _childViews.slice(); }
      _childViews.push(childView);
  
      childView.renderToBuffer(buffer);
  
      view.propertyDidChange('childViews');
  
      return childView;
    },
  
    // when a view is rendered in a buffer, destroying the
    // element will simply destroy the buffer and put the
    // state back into the preRender state.
    destroyElement: function(view) {
      view.clearBuffer();
      var viewCollection = view._notifyWillDestroyElement();
      viewCollection.transitionTo('preRender', false);
  
      return view;
    },
  
    empty: function() {
      Ember.assert("Emptying a view in the inBuffer state is not allowed and should not happen under normal circumstances. Most likely there is a bug in your application. This may be due to excessive property change notifications.");
    },
  
    renderToBufferIfNeeded: function (view, buffer) {
      return false;
    },
  
    // It should be impossible for a rendered view to be scheduled for
    // insertion.
    insertElement: function() {
      throw "You can't insert an element that has already been rendered";
    },
  
    setElement: function(view, value) {
      if (value === null) {
        view.transitionTo('preRender');
      } else {
        view.clearBuffer();
        view.transitionTo('hasElement');
      }
  
      return value;
    },
  
    invokeObserver: function(target, observer) {
      observer.call(target);
    }
  });
  
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  var get = Ember.get, set = Ember.set;
  
  var hasElement = Ember.View.states.hasElement = Ember.create(Ember.View.states._default);
  
  Ember.merge(hasElement, {
    $: function(view, sel) {
      var elem = get(view, 'element');
      return sel ? Ember.$(sel, elem) : Ember.$(elem);
    },
  
    getElement: function(view) {
      var parent = get(view, 'parentView');
      if (parent) { parent = get(parent, 'element'); }
      if (parent) { return view.findElementInParentElement(parent); }
      return Ember.$("#" + get(view, 'elementId'))[0];
    },
  
    setElement: function(view, value) {
      if (value === null) {
        view.transitionTo('preRender');
      } else {
        throw "You cannot set an element to a non-null value when the element is already in the DOM.";
      }
  
      return value;
    },
  
    // once the view has been inserted into the DOM, rerendering is
    // deferred to allow bindings to synchronize.
    rerender: function(view) {
      view.triggerRecursively('willClearRender');
  
      view.clearRenderedChildren();
  
      view.domManager.replace(view);
      return view;
    },
  
    // once the view is already in the DOM, destroying it removes it
    // from the DOM, nukes its element, and puts it back into the
    // preRender state if inDOM.
  
    destroyElement: function(view) {
      view._notifyWillDestroyElement();
      view.domManager.remove(view);
      set(view, 'element', null);
      if (view._scheduledInsert) {
        Ember.run.cancel(view._scheduledInsert);
        view._scheduledInsert = null;
      }
      return view;
    },
  
    empty: function(view) {
      var _childViews = view._childViews, len, idx;
      if (_childViews) {
        len = _childViews.length;
        for (idx = 0; idx < len; idx++) {
          _childViews[idx]._notifyWillDestroyElement();
        }
      }
      view.domManager.empty(view);
    },
  
    // Handle events from `Ember.EventDispatcher`
    handleEvent: function(view, eventName, evt) {
      if (view.has(eventName)) {
        // Handler should be able to re-dispatch events, so we don't
        // preventDefault or stopPropagation.
        return view.trigger(eventName, evt);
      } else {
        return true; // continue event propagation
      }
    },
  
    invokeObserver: function(target, observer) {
      observer.call(target);
    }
  });
  
  var inDOM = Ember.View.states.inDOM = Ember.create(hasElement);
  
  Ember.merge(inDOM, {
    enter: function(view) {
      // Register the view for event handling. This hash is used by
      // Ember.EventDispatcher to dispatch incoming events.
      if (!view.isVirtual) {
        Ember.assert("Attempted to register a view with an id already in use: "+view.elementId, !Ember.View.views[view.elementId]);
        Ember.View.views[view.elementId] = view;
      }
  
      view.addBeforeObserver('elementId', function() {
        throw new Error("Changing a view's elementId after creation is not allowed");
      });
    },
  
    exit: function(view) {
      if (!this.isVirtual) delete Ember.View.views[view.elementId];
    },
  
    insertElement: function(view, fn) {
      throw "You can't insert an element into the DOM that has already been inserted";
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  var destroyingError = "You can't call %@ on a view being destroyed", fmt = Ember.String.fmt;
  
  var destroying = Ember.View.states.destroying = Ember.create(Ember.View.states._default);
  
  Ember.merge(destroying, {
    appendChild: function() {
      throw fmt(destroyingError, ['appendChild']);
    },
    rerender: function() {
      throw fmt(destroyingError, ['rerender']);
    },
    destroyElement: function() {
      throw fmt(destroyingError, ['destroyElement']);
    },
    empty: function() {
      throw fmt(destroyingError, ['empty']);
    },
  
    setElement: function() {
      throw fmt(destroyingError, ["set('element', ...)"]);
    },
  
    renderToBufferIfNeeded: function() {
      return false;
    },
  
    // Since element insertion is scheduled, don't do anything if
    // the view has been destroyed between scheduling and execution
    insertElement: Ember.K
  });
  
  
  })();
  
  
  
  (function() {
  Ember.View.cloneStates = function(from) {
    var into = {};
  
    into._default = {};
    into.preRender = Ember.create(into._default);
    into.destroying = Ember.create(into._default);
    into.inBuffer = Ember.create(into._default);
    into.hasElement = Ember.create(into._default);
    into.inDOM = Ember.create(into.hasElement);
  
    for (var stateName in from) {
      if (!from.hasOwnProperty(stateName)) { continue; }
      Ember.merge(into[stateName], from[stateName]);
    }
  
    return into;
  };
  
  })();
  
  
  
  (function() {
  var states = Ember.View.cloneStates(Ember.View.states);
  
  /**
  @module ember
  @submodule ember-views
  */
  
  var get = Ember.get, set = Ember.set;
  var forEach = Ember.EnumerableUtils.forEach;
  var ViewCollection = Ember._ViewCollection;
  
  /**
    A `ContainerView` is an `Ember.View` subclass that implements `Ember.MutableArray`
    allowing programatic management of its child views.
  
    ## Setting Initial Child Views
  
    The initial array of child views can be set in one of two ways. You can
    provide a `childViews` property at creation time that contains instance of
    `Ember.View`:
  
    ```javascript
    aContainer = Ember.ContainerView.create({
      childViews: [Ember.View.create(), Ember.View.create()]
    });
    ```
  
    You can also provide a list of property names whose values are instances of
    `Ember.View`:
  
    ```javascript
    aContainer = Ember.ContainerView.create({
      childViews: ['aView', 'bView', 'cView'],
      aView: Ember.View.create(),
      bView: Ember.View.create(),
      cView: Ember.View.create()
    });
    ```
  
    The two strategies can be combined:
  
    ```javascript
    aContainer = Ember.ContainerView.create({
      childViews: ['aView', Ember.View.create()],
      aView: Ember.View.create()
    });
    ```
  
    Each child view's rendering will be inserted into the container's rendered
    HTML in the same order as its position in the `childViews` property.
  
    ## Adding and Removing Child Views
  
    The container view implements `Ember.MutableArray` allowing programatic management of its child views.
  
    To remove a view, pass that view into a `removeObject` call on the container view.
  
    Given an empty `<body>` the following code
  
    ```javascript
    aContainer = Ember.ContainerView.create({
      classNames: ['the-container'],
      childViews: ['aView', 'bView'],
      aView: Ember.View.create({
        template: Ember.Handlebars.compile("A")
      }),
      bView: Ember.View.create({
        template: Ember.Handlebars.compile("B")
      })
    });
  
    aContainer.appendTo('body');
    ```
  
    Results in the HTML
  
    ```html
    <div class="ember-view the-container">
      <div class="ember-view">A</div>
      <div class="ember-view">B</div>
    </div>
    ```
  
    Removing a view
  
    ```javascript
    aContainer.toArray();  // [aContainer.aView, aContainer.bView]
    aContainer.removeObject(aContainer.get('bView'));
    aContainer.toArray();  // [aContainer.aView]
    ```
  
    Will result in the following HTML
  
    ```html
    <div class="ember-view the-container">
      <div class="ember-view">A</div>
    </div>
    ```
  
    Similarly, adding a child view is accomplished by adding `Ember.View` instances to the
    container view.
  
    Given an empty `<body>` the following code
  
    ```javascript
    aContainer = Ember.ContainerView.create({
      classNames: ['the-container'],
      childViews: ['aView', 'bView'],
      aView: Ember.View.create({
        template: Ember.Handlebars.compile("A")
      }),
      bView: Ember.View.create({
        template: Ember.Handlebars.compile("B")
      })
    });
  
    aContainer.appendTo('body');
    ```
  
    Results in the HTML
  
    ```html
    <div class="ember-view the-container">
      <div class="ember-view">A</div>
      <div class="ember-view">B</div>
    </div>
    ```
  
    Adding a view
  
    ```javascript
    AnotherViewClass = Ember.View.extend({
      template: Ember.Handlebars.compile("Another view")
    });
  
    aContainer.toArray();  // [aContainer.aView, aContainer.bView]
    aContainer.pushObject(AnotherViewClass.create());
    aContainer.toArray(); // [aContainer.aView, aContainer.bView, <AnotherViewClass instance>]
    ```
  
    Will result in the following HTML
  
    ```html
    <div class="ember-view the-container">
      <div class="ember-view">A</div>
      <div class="ember-view">B</div>
      <div class="ember-view">Another view</div>
    </div>
    ```
  
    ## Templates and Layout
  
    A `template`, `templateName`, `defaultTemplate`, `layout`, `layoutName` or
    `defaultLayout` property on a container view will not result in the template
    or layout being rendered. The HTML contents of a `Ember.ContainerView`'s DOM
    representation will only be the rendered HTML of its child views.
  
    ## Binding a View to Display
  
    If you would like to display a single view in your ContainerView, you can set
    its `currentView` property. When the `currentView` property is set to a view
    instance, it will be added to the ContainerView. If the `currentView` property
    is later changed to a different view, the new view will replace the old view.
    If `currentView` is set to `null`, the last `currentView` will be removed.
  
    This functionality is useful for cases where you want to bind the display of
    a ContainerView to a controller or state manager. For example, you can bind
    the `currentView` of a container to a controller like this:
  
    ```javascript
    App.appController = Ember.Object.create({
      view: Ember.View.create({
        templateName: 'person_template'
      })
    });
    ```
  
    ```handlebars
    {{view Ember.ContainerView currentViewBinding="App.appController.view"}}
    ```
  
    @class ContainerView
    @namespace Ember
    @extends Ember.View
  */
  Ember.ContainerView = Ember.View.extend(Ember.MutableArray, {
    states: states,
  
    init: function() {
      this._super();
  
      var childViews = get(this, 'childViews');
  
      // redefine view's childViews property that was obliterated
      Ember.defineProperty(this, 'childViews', Ember.View.childViewsProperty);
  
      var _childViews = this._childViews;
  
      forEach(childViews, function(viewName, idx) {
        var view;
  
        if ('string' === typeof viewName) {
          view = get(this, viewName);
          view = this.createChildView(view);
          set(this, viewName, view);
        } else {
          view = this.createChildView(viewName);
        }
  
        _childViews[idx] = view;
      }, this);
  
      var currentView = get(this, 'currentView');
      if (currentView) {
        if (!_childViews.length) { _childViews = this._childViews = this._childViews.slice(); }
        _childViews.push(this.createChildView(currentView));
      }
    },
  
    replace: function(idx, removedCount, addedViews) {
      var addedCount = addedViews ? get(addedViews, 'length') : 0;
      var self = this;
      Ember.assert("You can't add a child to a container that is already a child of another view", Ember.A(addedViews).every(function(item) { return !get(item, '_parentView') || get(item, '_parentView') === self; }));
  
      this.arrayContentWillChange(idx, removedCount, addedCount);
      this.childViewsWillChange(this._childViews, idx, removedCount);
  
      if (addedCount === 0) {
        this._childViews.splice(idx, removedCount) ;
      } else {
        var args = [idx, removedCount].concat(addedViews);
        if (addedViews.length && !this._childViews.length) { this._childViews = this._childViews.slice(); }
        this._childViews.splice.apply(this._childViews, args);
      }
  
      this.arrayContentDidChange(idx, removedCount, addedCount);
      this.childViewsDidChange(this._childViews, idx, removedCount, addedCount);
  
      return this;
    },
  
    objectAt: function(idx) {
      return this._childViews[idx];
    },
  
    length: Ember.computed(function () {
      return this._childViews.length;
    }),
  
    /**
      @private
  
      Instructs each child view to render to the passed render buffer.
  
      @method render
      @param {Ember.RenderBuffer} buffer the buffer to render to
    */
    render: function(buffer) {
      this.forEachChildView(function(view) {
        view.renderToBuffer(buffer);
      });
    },
  
    instrumentName: 'container',
  
    /**
      @private
  
      When a child view is removed, destroy its element so that
      it is removed from the DOM.
  
      The array observer that triggers this action is set up in the
      `renderToBuffer` method.
  
      @method childViewsWillChange
      @param {Ember.Array} views the child views array before mutation
      @param {Number} start the start position of the mutation
      @param {Number} removed the number of child views removed
    **/
    childViewsWillChange: function(views, start, removed) {
      this.propertyWillChange('childViews');
  
      if (removed > 0) {
        var changedViews = views.slice(start, start+removed);
        // transition to preRender before clearing parentView
        this.currentState.childViewsWillChange(this, views, start, removed);
        this.initializeViews(changedViews, null, null);
      }
    },
  
    removeChild: function(child) {
      this.removeObject(child);
      return this;
    },
  
    /**
      @private
  
      When a child view is added, make sure the DOM gets updated appropriately.
  
      If the view has already rendered an element, we tell the child view to
      create an element and insert it into the DOM. If the enclosing container
      view has already written to a buffer, but not yet converted that buffer
      into an element, we insert the string representation of the child into the
      appropriate place in the buffer.
  
      @method childViewsDidChange
      @param {Ember.Array} views the array of child views afte the mutation has occurred
      @param {Number} start the start position of the mutation
      @param {Number} removed the number of child views removed
      @param {Number} the number of child views added
    */
    childViewsDidChange: function(views, start, removed, added) {
      if (added > 0) {
        var changedViews = views.slice(start, start+added);
        this.initializeViews(changedViews, this, get(this, 'templateData'));
        this.currentState.childViewsDidChange(this, views, start, added);
      }
      this.propertyDidChange('childViews');
    },
  
    initializeViews: function(views, parentView, templateData) {
      forEach(views, function(view) {
        set(view, '_parentView', parentView);
        set(view, 'container', parentView && parentView.container);
  
        if (!get(view, 'templateData')) {
          set(view, 'templateData', templateData);
        }
      });
    },
  
    currentView: null,
  
    _currentViewWillChange: Ember.beforeObserver(function() {
      var currentView = get(this, 'currentView');
      if (currentView) {
        currentView.destroy();
      }
    }, 'currentView'),
  
    _currentViewDidChange: Ember.observer(function() {
      var currentView = get(this, 'currentView');
      if (currentView) {
        Ember.assert("You tried to set a current view that already has a parent. Make sure you don't have multiple outlets in the same view.", !get(currentView, '_parentView'));
        this.pushObject(currentView);
      }
    }, 'currentView'),
  
    _ensureChildrenAreInDOM: function () {
      this.currentState.ensureChildrenAreInDOM(this);
    }
  });
  
  Ember.merge(states._default, {
    childViewsWillChange: Ember.K,
    childViewsDidChange: Ember.K,
    ensureChildrenAreInDOM: Ember.K
  });
  
  Ember.merge(states.inBuffer, {
    childViewsDidChange: function(parentView, views, start, added) {
      throw new Error('You cannot modify child views while in the inBuffer state');
    }
  });
  
  Ember.merge(states.hasElement, {
    childViewsWillChange: function(view, views, start, removed) {
      for (var i=start; i<start+removed; i++) {
        views[i].remove();
      }
    },
  
    childViewsDidChange: function(view, views, start, added) {
      Ember.run.scheduleOnce('render', view, '_ensureChildrenAreInDOM');
    },
  
    ensureChildrenAreInDOM: function(view) {
      var childViews = view._childViews, i, len, childView, previous, buffer, viewCollection = new ViewCollection();
  
      for (i = 0, len = childViews.length; i < len; i++) {
        childView = childViews[i];
  
        if (!buffer) { buffer = Ember.RenderBuffer(); buffer._hasElement = false; }
  
        if (childView.renderToBufferIfNeeded(buffer)) {
          viewCollection.push(childView);
        } else if (viewCollection.length) {
          insertViewCollection(view, viewCollection, previous, buffer);
          buffer = null;
          previous = childView;
          viewCollection.clear();
        } else {
          previous = childView;
        }
      }
  
      if (viewCollection.length) {
        insertViewCollection(view, viewCollection, previous, buffer);
      }
    }
  });
  
  function insertViewCollection(view, viewCollection, previous, buffer) {
    viewCollection.triggerRecursively('willInsertElement');
  
    if (previous) {
      previous.domManager.after(previous, buffer.string());
    } else {
      view.domManager.prepend(view, buffer.string());
    }
  
    viewCollection.forEach(function(v) {
      v.transitionTo('inDOM');
      v.propertyDidChange('element');
      v.triggerRecursively('didInsertElement');
    });
  }
  
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  var get = Ember.get, set = Ember.set, fmt = Ember.String.fmt;
  
  /**
    `Ember.CollectionView` is an `Ember.View` descendent responsible for managing
    a collection (an array or array-like object) by maintaining a child view object
    and associated DOM representation for each item in the array and ensuring
    that child views and their associated rendered HTML are updated when items in
    the array are added, removed, or replaced.
  
    ## Setting content
  
    The managed collection of objects is referenced as the `Ember.CollectionView`
    instance's `content` property.
  
    ```javascript
    someItemsView = Ember.CollectionView.create({
      content: ['A', 'B','C']
    })
    ```
  
    The view for each item in the collection will have its `content` property set
    to the item.
  
    ## Specifying itemViewClass
  
    By default the view class for each item in the managed collection will be an
    instance of `Ember.View`. You can supply a different class by setting the
    `CollectionView`'s `itemViewClass` property.
  
    Given an empty `<body>` and the following code:
  
    ```javascript
    someItemsView = Ember.CollectionView.create({
      classNames: ['a-collection'],
      content: ['A','B','C'],
      itemViewClass: Ember.View.extend({
        template: Ember.Handlebars.compile("the letter: {{view.content}}")
      })
    });
  
    someItemsView.appendTo('body');
    ```
  
    Will result in the following HTML structure
  
    ```html
    <div class="ember-view a-collection">
      <div class="ember-view">the letter: A</div>
      <div class="ember-view">the letter: B</div>
      <div class="ember-view">the letter: C</div>
    </div>
    ```
  
    ## Automatic matching of parent/child tagNames
  
    Setting the `tagName` property of a `CollectionView` to any of
    "ul", "ol", "table", "thead", "tbody", "tfoot", "tr", or "select" will result
    in the item views receiving an appropriately matched `tagName` property.
  
    Given an empty `<body>` and the following code:
  
    ```javascript
    anUndorderedListView = Ember.CollectionView.create({
      tagName: 'ul',
      content: ['A','B','C'],
      itemViewClass: Ember.View.extend({
        template: Ember.Handlebars.compile("the letter: {{view.content}}")
      })
    });
  
    anUndorderedListView.appendTo('body');
    ```
  
    Will result in the following HTML structure
  
    ```html
    <ul class="ember-view a-collection">
      <li class="ember-view">the letter: A</li>
      <li class="ember-view">the letter: B</li>
      <li class="ember-view">the letter: C</li>
    </ul>
    ```
  
    Additional `tagName` pairs can be provided by adding to
    `Ember.CollectionView.CONTAINER_MAP `
  
    ```javascript
    Ember.CollectionView.CONTAINER_MAP['article'] = 'section'
    ```
  
    ## Programatic creation of child views
  
    For cases where additional customization beyond the use of a single
    `itemViewClass` or `tagName` matching is required CollectionView's
    `createChildView` method can be overidden:
  
    ```javascript
    CustomCollectionView = Ember.CollectionView.extend({
      createChildView: function(viewClass, attrs) {
        if (attrs.content.kind == 'album') {
          viewClass = App.AlbumView;
        } else {
          viewClass = App.SongView;
        }
        return this._super(viewClass, attrs);
      }
    });
    ```
  
    ## Empty View
  
    You can provide an `Ember.View` subclass to the `Ember.CollectionView`
    instance as its `emptyView` property. If the `content` property of a
    `CollectionView` is set to `null` or an empty array, an instance of this view
    will be the `CollectionView`s only child.
  
    ```javascript
    aListWithNothing = Ember.CollectionView.create({
      classNames: ['nothing']
      content: null,
      emptyView: Ember.View.extend({
        template: Ember.Handlebars.compile("The collection is empty")
      })
    });
  
    aListWithNothing.appendTo('body');
    ```
  
    Will result in the following HTML structure
  
    ```html
    <div class="ember-view nothing">
      <div class="ember-view">
        The collection is empty
      </div>
    </div>
    ```
  
    ## Adding and Removing items
  
    The `childViews` property of a `CollectionView` should not be directly
    manipulated. Instead, add, remove, replace items from its `content` property.
    This will trigger appropriate changes to its rendered HTML.
  
    ## Use in templates via the `{{collection}}` `Ember.Handlebars` helper
  
    `Ember.Handlebars` provides a helper specifically for adding
    `CollectionView`s to templates. See `Ember.Handlebars.collection` for more
    details
  
    @class CollectionView
    @namespace Ember
    @extends Ember.ContainerView
    @since Ember 0.9
  */
  Ember.CollectionView = Ember.ContainerView.extend(/** @scope Ember.CollectionView.prototype */ {
  
    /**
      A list of items to be displayed by the `Ember.CollectionView`.
  
      @property content
      @type Ember.Array
      @default null
    */
    content: null,
  
    /**
      @private
  
      This provides metadata about what kind of empty view class this
      collection would like if it is being instantiated from another
      system (like Handlebars)
  
      @property emptyViewClass
    */
    emptyViewClass: Ember.View,
  
    /**
      An optional view to display if content is set to an empty array.
  
      @property emptyView
      @type Ember.View
      @default null
    */
    emptyView: null,
  
    /**
      @property itemViewClass
      @type Ember.View
      @default Ember.View
    */
    itemViewClass: Ember.View,
  
    init: function() {
      var ret = this._super();
      this._contentDidChange();
      return ret;
    },
  
    _contentWillChange: Ember.beforeObserver(function() {
      var content = this.get('content');
  
      if (content) { content.removeArrayObserver(this); }
      var len = content ? get(content, 'length') : 0;
      this.arrayWillChange(content, 0, len);
    }, 'content'),
  
    /**
      @private
  
      Check to make sure that the content has changed, and if so,
      update the children directly. This is always scheduled
      asynchronously, to allow the element to be created before
      bindings have synchronized and vice versa.
  
      @method _contentDidChange
    */
    _contentDidChange: Ember.observer(function() {
      var content = get(this, 'content');
  
      if (content) {
        Ember.assert(fmt("an Ember.CollectionView's content must implement Ember.Array. You passed %@", [content]), Ember.Array.detect(content));
        content.addArrayObserver(this);
      }
  
      var len = content ? get(content, 'length') : 0;
      this.arrayDidChange(content, 0, null, len);
    }, 'content'),
  
    destroy: function() {
      if (!this._super()) { return; }
  
      var content = get(this, 'content');
      if (content) { content.removeArrayObserver(this); }
  
      if (this._createdEmptyView) {
        this._createdEmptyView.destroy();
      }
  
      return this;
    },
  
    arrayWillChange: function(content, start, removedCount) {
      // If the contents were empty before and this template collection has an
      // empty view remove it now.
      var emptyView = get(this, 'emptyView');
      if (emptyView && emptyView instanceof Ember.View) {
        emptyView.removeFromParent();
      }
  
      // Loop through child views that correspond with the removed items.
      // Note that we loop from the end of the array to the beginning because
      // we are mutating it as we go.
      var childViews = this._childViews, childView, idx, len;
  
      len = this._childViews.length;
  
      var removingAll = removedCount === len;
  
      if (removingAll) {
        this.currentState.empty(this);
        this.invokeRecursively(function(view) {
          view.removedFromDOM = true;
        }, false);
      }
  
      for (idx = start + removedCount - 1; idx >= start; idx--) {
        childView = childViews[idx];
        childView.destroy();
      }
    },
  
    /**
      Called when a mutation to the underlying content array occurs.
  
      This method will replay that mutation against the views that compose the
      `Ember.CollectionView`, ensuring that the view reflects the model.
  
      This array observer is added in `contentDidChange`.
  
      @method arrayDidChange
      @param {Array} content the managed collection of objects
      @param {Number} start the index at which the changes occurred
      @param {Number} removed number of object removed from content
      @param {Number} added number of object added to content
    */
    arrayDidChange: function(content, start, removed, added) {
      var itemViewClass = get(this, 'itemViewClass'),
          addedViews = [], view, item, idx, len;
  
      if ('string' === typeof itemViewClass) {
        itemViewClass = get(itemViewClass);
      }
  
      Ember.assert(fmt("itemViewClass must be a subclass of Ember.View, not %@", [itemViewClass]), Ember.View.detect(itemViewClass));
  
      len = content ? get(content, 'length') : 0;
      if (len) {
        for (idx = start; idx < start+added; idx++) {
          item = content.objectAt(idx);
  
          view = this.createChildView(itemViewClass, {
            content: item,
            contentIndex: idx
          });
  
          addedViews.push(view);
        }
      } else {
        var emptyView = get(this, 'emptyView');
        if (!emptyView) { return; }
  
        var isClass = Ember.CoreView.detect(emptyView);
  
        emptyView = this.createChildView(emptyView);
        addedViews.push(emptyView);
        set(this, 'emptyView', emptyView);
  
        if (isClass) { this._createdEmptyView = emptyView; }
      }
      this.replace(start, 0, addedViews);
    },
  
    createChildView: function(view, attrs) {
      view = this._super(view, attrs);
  
      var itemTagName = get(view, 'tagName');
      var tagName = (itemTagName === null || itemTagName === undefined) ? Ember.CollectionView.CONTAINER_MAP[get(this, 'tagName')] : itemTagName;
  
      set(view, 'tagName', tagName);
  
      return view;
    }
  });
  
  /**
    A map of parent tags to their default child tags. You can add
    additional parent tags if you want collection views that use
    a particular parent tag to default to a child tag.
  
    @property CONTAINER_MAP
    @type Hash
    @static
    @final
  */
  Ember.CollectionView.CONTAINER_MAP = {
    ul: 'li',
    ol: 'li',
    table: 'tr',
    thead: 'tr',
    tbody: 'tr',
    tfoot: 'tr',
    tr: 'td',
    select: 'option'
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  /**
    An `Ember.Component` is a view that is completely
    isolated. Property access in its templates go
    to the view object and actions are targeted at
    the view object. There is no access to the
    surrounding context or outer controller; all
    contextual information is passed in.
  
    The easiest way to create an `Ember.Component` is via
    a template. If you name a template
    `controls/my-foo`, you will be able to use
    `{{my-foo}}` in other templates, which will make
    an instance of the isolated control.
  
    ```html
    {{app-profile person=currentUser}}
    ```
  
    ```html
    <!-- app-profile template -->
    <h1>{{person.title}}</h1>
    <img {{bindAttr src=person.avatar}}>
    <p class='signature'>{{person.signature}}</p>
    ```
  
    You can also use `yield` inside a template to
    include the **contents** of the custom tag:
  
    ```html
    {{#my-profile person=currentUser}}
    <p>Admin mode</p>
    {{/my-profile}}
    ```
  
    ```html
    <!-- app-profile template -->
  
    <h1>{{person.title}}</h1>
    {{yield}} <!-- block contents -->
    ```
  
    If you want to customize the control, in order to
    handle events or actions, you implement a subclass
    of `Ember.Component` named after the name of the
    control.
  
    For example, you could implement the action
    `hello` for the `app-profile` control:
  
    ```js
    App.AppProfileComponent = Ember.Component.extend({
      hello: function(name) {
        console.log("Hello", name)
      }
    });
    ```
  
    And then use it in the control's template:
  
    ```html
    <!-- app-profile template -->
  
    <h1>{{person.title}}</h1>
    {{yield}} <!-- block contents -->
  
    <button {{action 'hello' person.name}}>
      Say Hello to {{person.name}}
    </button>
    ```
  
    Components must have a `-` in their name to avoid
    conflicts with built-in controls that wrap HTML
    elements. This is consistent with the same
    requirement in web components.
  
    @class Component
    @namespace Ember
    @extends Ember.View
  */
  Ember.Component = Ember.View.extend({
    init: function() {
      this._super();
      this.set('context', this);
      this.set('controller', this);
    }
  });
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  /**
  `Ember.ViewTargetActionSupport` is a mixin that can be included in a
  view class to add a `triggerAction` method with semantics similar to
  the Handlebars `{{action}}` helper. It provides intelligent defaults
  for the action's target: the view's controller; and the context that is
  sent with the action: the view's context.
  
  Note: In normal Ember usage, the `{{action}}` helper is usually the best
  choice. This mixin is most often useful when you are doing more complex
  event handling in custom View subclasses.
  
  For example:
  
  ```javascript
  App.SaveButtonView = Ember.View.extend(Ember.ViewTargetActionSupport, {
    action: 'save',
    click: function(){
      this.triggerAction(); // Sends the `save` action, along with the current context
                            // to the current controller
    }
  });
  ```
  
  The `action` can be provided as properties of an optional object argument
  to `triggerAction` as well.
  
  ```javascript
  App.SaveButtonView = Ember.View.extend(Ember.ViewTargetActionSupport, {
    click: function(){
      this.triggerAction({
        action: 'save'
      }); // Sends the `save` action, along with the current context
          // to the current controller
    }
  });
  ```
  
  @class ViewTargetActionSupport
  @namespace Ember
  @extends Ember.TargetActionSupport
  */
  Ember.ViewTargetActionSupport = Ember.Mixin.create(Ember.TargetActionSupport, {
    /**
    @property target
    */
    target: Ember.computed.alias('controller'),
    /**
    @property actionContext
    */
    actionContext: Ember.computed.alias('context')
  });
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  /**
  Ember Views
  
  @module ember
  @submodule ember-views
  @requires ember-runtime
  @main ember-views
  */
  
  })();
  
  (function() {
  define("metamorph",
    [],
    function() {
      "use strict";
      // ==========================================================================
      // Project:   metamorph
      // Copyright: Â©2011 My Company Inc. All rights reserved.
      // ==========================================================================
  
      var K = function(){},
          guid = 0,
          document = this.document,
  
          // Feature-detect the W3C range API, the extended check is for IE9 which only partially supports ranges
          supportsRange = document && ('createRange' in document) && (typeof Range !== 'undefined') && Range.prototype.createContextualFragment,
  
          // Internet Explorer prior to 9 does not allow setting innerHTML if the first element
          // is a "zero-scope" element. This problem can be worked around by making
          // the first node an invisible text node. We, like Modernizr, use &shy;
          needsShy = document && (function(){
            var testEl = document.createElement('div');
            testEl.innerHTML = "<div></div>";
            testEl.firstChild.innerHTML = "<script></script>";
            return testEl.firstChild.innerHTML === '';
          })(),
  
  
          // IE 8 (and likely earlier) likes to move whitespace preceeding
          // a script tag to appear after it. This means that we can
          // accidentally remove whitespace when updating a morph.
          movesWhitespace = document && (function() {
            var testEl = document.createElement('div');
            testEl.innerHTML = "Test: <script type='text/x-placeholder'></script>Value";
            return testEl.childNodes[0].nodeValue === 'Test:' &&
                    testEl.childNodes[2].nodeValue === ' Value';
          })();
  
      // Constructor that supports either Metamorph('foo') or new
      // Metamorph('foo');
      //
      // Takes a string of HTML as the argument.
  
      var Metamorph = function(html) {
        var self;
  
        if (this instanceof Metamorph) {
          self = this;
        } else {
          self = new K();
        }
  
        self.innerHTML = html;
        var myGuid = 'metamorph-'+(guid++);
        self.start = myGuid + '-start';
        self.end = myGuid + '-end';
  
        return self;
      };
  
      K.prototype = Metamorph.prototype;
  
      var rangeFor, htmlFunc, removeFunc, outerHTMLFunc, appendToFunc, afterFunc, prependFunc, startTagFunc, endTagFunc;
  
      outerHTMLFunc = function() {
        return this.startTag() + this.innerHTML + this.endTag();
      };
  
      startTagFunc = function() {
        /*
         * We replace chevron by its hex code in order to prevent escaping problems.
         * Check this thread for more explaination:
         * http://stackoverflow.com/questions/8231048/why-use-x3c-instead-of-when-generating-html-from-javascript
         */
        return "<script id='" + this.start + "' type='text/x-placeholder'>\x3C/script>";
      };
  
      endTagFunc = function() {
        /*
         * We replace chevron by its hex code in order to prevent escaping problems.
         * Check this thread for more explaination:
         * http://stackoverflow.com/questions/8231048/why-use-x3c-instead-of-when-generating-html-from-javascript
         */
        return "<script id='" + this.end + "' type='text/x-placeholder'>\x3C/script>";
      };
  
      // If we have the W3C range API, this process is relatively straight forward.
      if (supportsRange) {
  
        // Get a range for the current morph. Optionally include the starting and
        // ending placeholders.
        rangeFor = function(morph, outerToo) {
          var range = document.createRange();
          var before = document.getElementById(morph.start);
          var after = document.getElementById(morph.end);
  
          if (outerToo) {
            range.setStartBefore(before);
            range.setEndAfter(after);
          } else {
            range.setStartAfter(before);
            range.setEndBefore(after);
          }
  
          return range;
        };
  
        htmlFunc = function(html, outerToo) {
          // get a range for the current metamorph object
          var range = rangeFor(this, outerToo);
  
          // delete the contents of the range, which will be the
          // nodes between the starting and ending placeholder.
          range.deleteContents();
  
          // create a new document fragment for the HTML
          var fragment = range.createContextualFragment(html);
  
          // insert the fragment into the range
          range.insertNode(fragment);
        };
  
        removeFunc = function() {
          // get a range for the current metamorph object including
          // the starting and ending placeholders.
          var range = rangeFor(this, true);
  
          // delete the entire range.
          range.deleteContents();
        };
  
        appendToFunc = function(node) {
          var range = document.createRange();
          range.setStart(node);
          range.collapse(false);
          var frag = range.createContextualFragment(this.outerHTML());
          node.appendChild(frag);
        };
  
        afterFunc = function(html) {
          var range = document.createRange();
          var after = document.getElementById(this.end);
  
          range.setStartAfter(after);
          range.setEndAfter(after);
  
          var fragment = range.createContextualFragment(html);
          range.insertNode(fragment);
        };
  
        prependFunc = function(html) {
          var range = document.createRange();
          var start = document.getElementById(this.start);
  
          range.setStartAfter(start);
          range.setEndAfter(start);
  
          var fragment = range.createContextualFragment(html);
          range.insertNode(fragment);
        };
  
      } else {
        /**
         * This code is mostly taken from jQuery, with one exception. In jQuery's case, we
         * have some HTML and we need to figure out how to convert it into some nodes.
         *
         * In this case, jQuery needs to scan the HTML looking for an opening tag and use
         * that as the key for the wrap map. In our case, we know the parent node, and
         * can use its type as the key for the wrap map.
         **/
        var wrapMap = {
          select: [ 1, "<select multiple='multiple'>", "</select>" ],
          fieldset: [ 1, "<fieldset>", "</fieldset>" ],
          table: [ 1, "<table>", "</table>" ],
          tbody: [ 2, "<table><tbody>", "</tbody></table>" ],
          tr: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
          colgroup: [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ],
          map: [ 1, "<map>", "</map>" ],
          _default: [ 0, "", "" ]
        };
  
        var findChildById = function(element, id) {
          if (element.getAttribute('id') === id) { return element; }
  
          var len = element.childNodes.length, idx, node, found;
          for (idx=0; idx<len; idx++) {
            node = element.childNodes[idx];
            found = node.nodeType === 1 && findChildById(node, id);
            if (found) { return found; }
          }
        };
  
        var setInnerHTML = function(element, html) {
          var matches = [];
          if (movesWhitespace) {
            // Right now we only check for script tags with ids with the
            // goal of targeting morphs.
            html = html.replace(/(\s+)(<script id='([^']+)')/g, function(match, spaces, tag, id) {
              matches.push([id, spaces]);
              return tag;
            });
          }
  
          element.innerHTML = html;
  
          // If we have to do any whitespace adjustments do them now
          if (matches.length > 0) {
            var len = matches.length, idx;
            for (idx=0; idx<len; idx++) {
              var script = findChildById(element, matches[idx][0]),
                  node = document.createTextNode(matches[idx][1]);
              script.parentNode.insertBefore(node, script);
            }
          }
        };
  
        /**
         * Given a parent node and some HTML, generate a set of nodes. Return the first
         * node, which will allow us to traverse the rest using nextSibling.
         *
         * We need to do this because innerHTML in IE does not really parse the nodes.
         **/
        var firstNodeFor = function(parentNode, html) {
          var arr = wrapMap[parentNode.tagName.toLowerCase()] || wrapMap._default;
          var depth = arr[0], start = arr[1], end = arr[2];
  
          if (needsShy) { html = '&shy;'+html; }
  
          var element = document.createElement('div');
  
          setInnerHTML(element, start + html + end);
  
          for (var i=0; i<=depth; i++) {
            element = element.firstChild;
          }
  
          // Look for &shy; to remove it.
          if (needsShy) {
            var shyElement = element;
  
            // Sometimes we get nameless elements with the shy inside
            while (shyElement.nodeType === 1 && !shyElement.nodeName) {
              shyElement = shyElement.firstChild;
            }
  
            // At this point it's the actual unicode character.
            if (shyElement.nodeType === 3 && shyElement.nodeValue.charAt(0) === "\u00AD") {
              shyElement.nodeValue = shyElement.nodeValue.slice(1);
            }
          }
  
          return element;
        };
  
        /**
         * In some cases, Internet Explorer can create an anonymous node in
         * the hierarchy with no tagName. You can create this scenario via:
         *
         *     div = document.createElement("div");
         *     div.innerHTML = "<table>&shy<script></script><tr><td>hi</td></tr></table>";
         *     div.firstChild.firstChild.tagName //=> ""
         *
         * If our script markers are inside such a node, we need to find that
         * node and use *it* as the marker.
         **/
        var realNode = function(start) {
          while (start.parentNode.tagName === "") {
            start = start.parentNode;
          }
  
          return start;
        };
  
        /**
         * When automatically adding a tbody, Internet Explorer inserts the
         * tbody immediately before the first <tr>. Other browsers create it
         * before the first node, no matter what.
         *
         * This means the the following code:
         *
         *     div = document.createElement("div");
         *     div.innerHTML = "<table><script id='first'></script><tr><td>hi</td></tr><script id='last'></script></table>
         *
         * Generates the following DOM in IE:
         *
         *     + div
         *       + table
         *         - script id='first'
         *         + tbody
         *           + tr
         *             + td
         *               - "hi"
         *           - script id='last'
         *
         * Which means that the two script tags, even though they were
         * inserted at the same point in the hierarchy in the original
         * HTML, now have different parents.
         *
         * This code reparents the first script tag by making it the tbody's
         * first child.
         **/
        var fixParentage = function(start, end) {
          if (start.parentNode !== end.parentNode) {
            end.parentNode.insertBefore(start, end.parentNode.firstChild);
          }
        };
  
        htmlFunc = function(html, outerToo) {
          // get the real starting node. see realNode for details.
          var start = realNode(document.getElementById(this.start));
          var end = document.getElementById(this.end);
          var parentNode = end.parentNode;
          var node, nextSibling, last;
  
          // make sure that the start and end nodes share the same
          // parent. If not, fix it.
          fixParentage(start, end);
  
          // remove all of the nodes after the starting placeholder and
          // before the ending placeholder.
          node = start.nextSibling;
          while (node) {
            nextSibling = node.nextSibling;
            last = node === end;
  
            // if this is the last node, and we want to remove it as well,
            // set the `end` node to the next sibling. This is because
            // for the rest of the function, we insert the new nodes
            // before the end (note that insertBefore(node, null) is
            // the same as appendChild(node)).
            //
            // if we do not want to remove it, just break.
            if (last) {
              if (outerToo) { end = node.nextSibling; } else { break; }
            }
  
            node.parentNode.removeChild(node);
  
            // if this is the last node and we didn't break before
            // (because we wanted to remove the outer nodes), break
            // now.
            if (last) { break; }
  
            node = nextSibling;
          }
  
          // get the first node for the HTML string, even in cases like
          // tables and lists where a simple innerHTML on a div would
          // swallow some of the content.
          node = firstNodeFor(start.parentNode, html);
  
          // copy the nodes for the HTML between the starting and ending
          // placeholder.
          while (node) {
            nextSibling = node.nextSibling;
            parentNode.insertBefore(node, end);
            node = nextSibling;
          }
        };
  
        // remove the nodes in the DOM representing this metamorph.
        //
        // this includes the starting and ending placeholders.
        removeFunc = function() {
          var start = realNode(document.getElementById(this.start));
          var end = document.getElementById(this.end);
  
          this.html('');
          start.parentNode.removeChild(start);
          end.parentNode.removeChild(end);
        };
  
        appendToFunc = function(parentNode) {
          var node = firstNodeFor(parentNode, this.outerHTML());
          var nextSibling;
  
          while (node) {
            nextSibling = node.nextSibling;
            parentNode.appendChild(node);
            node = nextSibling;
          }
        };
  
        afterFunc = function(html) {
          // get the real starting node. see realNode for details.
          var end = document.getElementById(this.end);
          var insertBefore = end.nextSibling;
          var parentNode = end.parentNode;
          var nextSibling;
          var node;
  
          // get the first node for the HTML string, even in cases like
          // tables and lists where a simple innerHTML on a div would
          // swallow some of the content.
          node = firstNodeFor(parentNode, html);
  
          // copy the nodes for the HTML between the starting and ending
          // placeholder.
          while (node) {
            nextSibling = node.nextSibling;
            parentNode.insertBefore(node, insertBefore);
            node = nextSibling;
          }
        };
  
        prependFunc = function(html) {
          var start = document.getElementById(this.start);
          var parentNode = start.parentNode;
          var nextSibling;
          var node;
  
          node = firstNodeFor(parentNode, html);
          var insertBefore = start.nextSibling;
  
          while (node) {
            nextSibling = node.nextSibling;
            parentNode.insertBefore(node, insertBefore);
            node = nextSibling;
          }
        };
      }
  
      Metamorph.prototype.html = function(html) {
        this.checkRemoved();
        if (html === undefined) { return this.innerHTML; }
  
        htmlFunc.call(this, html);
  
        this.innerHTML = html;
      };
  
      Metamorph.prototype.replaceWith = function(html) {
        this.checkRemoved();
        htmlFunc.call(this, html, true);
      };
  
      Metamorph.prototype.remove = removeFunc;
      Metamorph.prototype.outerHTML = outerHTMLFunc;
      Metamorph.prototype.appendTo = appendToFunc;
      Metamorph.prototype.after = afterFunc;
      Metamorph.prototype.prepend = prependFunc;
      Metamorph.prototype.startTag = startTagFunc;
      Metamorph.prototype.endTag = endTagFunc;
  
      Metamorph.prototype.isRemoved = function() {
        var before = document.getElementById(this.start);
        var after = document.getElementById(this.end);
  
        return !before || !after;
      };
  
      Metamorph.prototype.checkRemoved = function() {
        if (this.isRemoved()) {
          throw new Error("Cannot perform operations on a Metamorph that is not in the DOM.");
        }
      };
  
      return Metamorph;
    });
  
  })();
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars-compiler
  */
  
  // Eliminate dependency on any Ember to simplify precompilation workflow
  var objectCreate = Object.create || function(parent) {
    function F() {}
    F.prototype = parent;
    return new F();
  };
  
  var Handlebars = this.Handlebars || (Ember.imports && Ember.imports.Handlebars);
  if(!Handlebars && typeof require === 'function') {
    Handlebars = require('handlebars');
  }
  
  Ember.assert("Ember Handlebars requires Handlebars version 1.0.0-rc.4. Include a SCRIPT tag in the HTML HEAD linking to the Handlebars file before you link to Ember.", Handlebars)
  Ember.assert("Ember Handlebars requires Handlebars version 1.0.0-rc.4, COMPILER_REVISION expected: 3, got: " +  Handlebars.COMPILER_REVISION + " â€“ Please note: Builds of master may have other COMPILER_REVISION values.", Handlebars.COMPILER_REVISION === 3);
  
  /**
    Prepares the Handlebars templating library for use inside Ember's view
    system.
  
    The `Ember.Handlebars` object is the standard Handlebars library, extended to
    use Ember's `get()` method instead of direct property access, which allows
    computed properties to be used inside templates.
  
    To create an `Ember.Handlebars` template, call `Ember.Handlebars.compile()`.
    This will return a function that can be used by `Ember.View` for rendering.
  
    @class Handlebars
    @namespace Ember
  */
  Ember.Handlebars = objectCreate(Handlebars);
  
  function makeBindings(options) {
    var hash = options.hash,
        hashType = options.hashTypes;
  
    for (var prop in hash) {
      if (hashType[prop] === 'ID') {
        hash[prop + 'Binding'] = hash[prop];
        hashType[prop + 'Binding'] = 'STRING';
        delete hash[prop];
        delete hashType[prop];
      }
    }
  }
  
  /**
    Register a bound helper or custom view helper.
  
    ## Simple bound helper example
  
    ```javascript
    Ember.Handlebars.helper('capitalize', function(value) {
      return value.toUpperCase();
    });
    ```
  
    The above bound helper can be used inside of templates as follows:
  
    ```handlebars
    {{capitalize name}}
    ```
  
    In this case, when the `name` property of the template's context changes,
    the rendered value of the helper will update to reflect this change.
  
    For more examples of bound helpers, see documentation for
    `Ember.Handlebars.registerBoundHelper`.
  
    ## Custom view helper example
  
    Assuming a view subclass named `App.CalenderView` were defined, a helper
    for rendering instances of this view could be registered as follows:
  
    ```javascript
    Ember.Handlebars.helper('calendar', App.CalendarView):
    ```
  
    The above bound helper can be used inside of templates as follows:
  
    ```handlebars
    {{calendar}}
    ```
  
    Which is functionally equivalent to:
  
    ```handlebars
    {{view App.CalendarView}}
    ```
  
    Options in the helper will be passed to the view in exactly the same
    manner as with the `view` helper.
  
    @method helper
    @for Ember.Handlebars
    @param {String} name
    @param {Function|Ember.View} function or view class constructor
    @param {String} dependentKeys*
  */
  Ember.Handlebars.helper = function(name, value) {
    if (Ember.Component.detect(value)) {
      Ember.assert("You tried to register a component named '" + name + "', but component names must include a '-'", name.match(/-/));
  
      var proto = value.proto();
      if (!proto.layoutName && !proto.templateName) {
        value.reopen({
          layoutName: 'components/' + name
        });
      }
    }
  
    if (Ember.View.detect(value)) {
      Ember.Handlebars.registerHelper(name, function(options) {
        Ember.assert("You can only pass attributes as parameters (not values) to a application-defined helper", arguments.length < 2);
        makeBindings(options);
        return Ember.Handlebars.helpers.view.call(this, value, options);
      });
    } else {
      Ember.Handlebars.registerBoundHelper.apply(null, arguments);
    }
  }
  
  /**
  @class helpers
  @namespace Ember.Handlebars
  */
  Ember.Handlebars.helpers = objectCreate(Handlebars.helpers);
  
  /**
    Override the the opcode compiler and JavaScript compiler for Handlebars.
  
    @class Compiler
    @namespace Ember.Handlebars
    @private
    @constructor
  */
  Ember.Handlebars.Compiler = function() {};
  
  // Handlebars.Compiler doesn't exist in runtime-only
  if (Handlebars.Compiler) {
    Ember.Handlebars.Compiler.prototype = objectCreate(Handlebars.Compiler.prototype);
  }
  
  Ember.Handlebars.Compiler.prototype.compiler = Ember.Handlebars.Compiler;
  
  /**
    @class JavaScriptCompiler
    @namespace Ember.Handlebars
    @private
    @constructor
  */
  Ember.Handlebars.JavaScriptCompiler = function() {};
  
  // Handlebars.JavaScriptCompiler doesn't exist in runtime-only
  if (Handlebars.JavaScriptCompiler) {
    Ember.Handlebars.JavaScriptCompiler.prototype = objectCreate(Handlebars.JavaScriptCompiler.prototype);
    Ember.Handlebars.JavaScriptCompiler.prototype.compiler = Ember.Handlebars.JavaScriptCompiler;
  }
  
  
  Ember.Handlebars.JavaScriptCompiler.prototype.namespace = "Ember.Handlebars";
  
  
  Ember.Handlebars.JavaScriptCompiler.prototype.initializeBuffer = function() {
    return "''";
  };
  
  /**
    @private
  
    Override the default buffer for Ember Handlebars. By default, Handlebars
    creates an empty String at the beginning of each invocation and appends to
    it. Ember's Handlebars overrides this to append to a single shared buffer.
  
    @method appendToBuffer
    @param string {String}
  */
  Ember.Handlebars.JavaScriptCompiler.prototype.appendToBuffer = function(string) {
    return "data.buffer.push("+string+");";
  };
  
  var prefix = "ember" + (+new Date()), incr = 1;
  
  /**
    @private
  
    Rewrite simple mustaches from `{{foo}}` to `{{bind "foo"}}`. This means that
    all simple mustaches in Ember's Handlebars will also set up an observer to
    keep the DOM up to date when the underlying property changes.
  
    @method mustache
    @for Ember.Handlebars.Compiler
    @param mustache
  */
  Ember.Handlebars.Compiler.prototype.mustache = function(mustache) {
    if (mustache.isHelper && mustache.id.string === 'control') {
      mustache.hash = mustache.hash || new Handlebars.AST.HashNode([]);
      mustache.hash.pairs.push(["controlID", new Handlebars.AST.StringNode(prefix + incr++)]);
    } else if (mustache.params.length || mustache.hash) {
      // no changes required
    } else {
      var id = new Handlebars.AST.IdNode(['_triageMustache']);
  
      // Update the mustache node to include a hash value indicating whether the original node
      // was escaped. This will allow us to properly escape values when the underlying value
      // changes and we need to re-render the value.
      if(!mustache.escaped) {
        mustache.hash = mustache.hash || new Handlebars.AST.HashNode([]);
        mustache.hash.pairs.push(["unescaped", new Handlebars.AST.StringNode("true")]);
      }
      mustache = new Handlebars.AST.MustacheNode([id].concat([mustache.id]), mustache.hash, !mustache.escaped);
    }
  
    return Handlebars.Compiler.prototype.mustache.call(this, mustache);
  };
  
  /**
    Used for precompilation of Ember Handlebars templates. This will not be used
    during normal app execution.
  
    @method precompile
    @for Ember.Handlebars
    @static
    @param {String} string The template to precompile
  */
  Ember.Handlebars.precompile = function(string) {
    var ast = Handlebars.parse(string);
  
    var options = {
      knownHelpers: {
        action: true,
        unbound: true,
        bindAttr: true,
        template: true,
        view: true,
        _triageMustache: true
      },
      data: true,
      stringParams: true
    };
  
    var environment = new Ember.Handlebars.Compiler().compile(ast, options);
    return new Ember.Handlebars.JavaScriptCompiler().compile(environment, options, undefined, true);
  };
  
  // We don't support this for Handlebars runtime-only
  if (Handlebars.compile) {
    /**
      The entry point for Ember Handlebars. This replaces the default
      `Handlebars.compile` and turns on template-local data and String
      parameters.
  
      @method compile
      @for Ember.Handlebars
      @static
      @param {String} string The template to compile
      @return {Function}
    */
    Ember.Handlebars.compile = function(string) {
      var ast = Handlebars.parse(string);
      var options = { data: true, stringParams: true };
      var environment = new Ember.Handlebars.Compiler().compile(ast, options);
      var templateSpec = new Ember.Handlebars.JavaScriptCompiler().compile(environment, options, undefined, true);
  
      return Ember.Handlebars.template(templateSpec);
    };
  }
  
  
  })();
  
  (function() {
  var slice = Array.prototype.slice;
  
  /**
    @private
  
    If a path starts with a reserved keyword, returns the root
    that should be used.
  
    @method normalizePath
    @for Ember
    @param root {Object}
    @param path {String}
    @param data {Hash}
  */
  var normalizePath = Ember.Handlebars.normalizePath = function(root, path, data) {
    var keywords = (data && data.keywords) || {},
        keyword, isKeyword;
  
    // Get the first segment of the path. For example, if the
    // path is "foo.bar.baz", returns "foo".
    keyword = path.split('.', 1)[0];
  
    // Test to see if the first path is a keyword that has been
    // passed along in the view's data hash. If so, we will treat
    // that object as the new root.
    if (keywords.hasOwnProperty(keyword)) {
      // Look up the value in the template's data hash.
      root = keywords[keyword];
      isKeyword = true;
  
      // Handle cases where the entire path is the reserved
      // word. In that case, return the object itself.
      if (path === keyword) {
        path = '';
      } else {
        // Strip the keyword from the path and look up
        // the remainder from the newly found root.
        path = path.substr(keyword.length+1);
      }
    }
  
    return { root: root, path: path, isKeyword: isKeyword };
  };
  
  
  /**
    Lookup both on root and on window. If the path starts with
    a keyword, the corresponding object will be looked up in the
    template's data hash and used to resolve the path.
  
    @method get
    @for Ember.Handlebars
    @param {Object} root The object to look up the property on
    @param {String} path The path to be lookedup
    @param {Object} options The template's option hash
  */
  var handlebarsGet = Ember.Handlebars.get = function(root, path, options) {
    var data = options && options.data,
        normalizedPath = normalizePath(root, path, data),
        value;
  
    // In cases where the path begins with a keyword, change the
    // root to the value represented by that keyword, and ensure
    // the path is relative to it.
    root = normalizedPath.root;
    path = normalizedPath.path;
  
    value = Ember.get(root, path);
  
    // If the path starts with a capital letter, look it up on Ember.lookup,
    // which defaults to the `window` object in browsers.
    if (value === undefined && root !== Ember.lookup && Ember.isGlobalPath(path)) {
      value = Ember.get(Ember.lookup, path);
    }
    return value;
  };
  Ember.Handlebars.getPath = Ember.deprecateFunc('`Ember.Handlebars.getPath` has been changed to `Ember.Handlebars.get` for consistency.', Ember.Handlebars.get);
  
  Ember.Handlebars.resolveParams = function(context, params, options) {
    var resolvedParams = [], types = options.types, param, type;
  
    for (var i=0, l=params.length; i<l; i++) {
      param = params[i];
      type = types[i];
  
      if (type === 'ID') {
        resolvedParams.push(handlebarsGet(context, param, options));
      } else {
        resolvedParams.push(param);
      }
    }
  
    return resolvedParams;
  };
  
  Ember.Handlebars.resolveHash = function(context, hash, options) {
    var resolvedHash = {}, types = options.hashTypes, type;
  
    for (var key in hash) {
      if (!hash.hasOwnProperty(key)) { continue; }
  
      type = types[key];
  
      if (type === 'ID') {
        resolvedHash[key] = handlebarsGet(context, hash[key], options);
      } else {
        resolvedHash[key] = hash[key];
      }
    }
  
    return resolvedHash;
  };
  
  /**
    @private
  
    Registers a helper in Handlebars that will be called if no property with the
    given name can be found on the current context object, and no helper with
    that name is registered.
  
    This throws an exception with a more helpful error message so the user can
    track down where the problem is happening.
  
    @method helperMissing
    @for Ember.Handlebars.helpers
    @param {String} path
    @param {Hash} options
  */
  Ember.Handlebars.registerHelper('helperMissing', function(path, options) {
    var error, view = "";
  
    error = "%@ Handlebars error: Could not find property '%@' on object %@.";
    if (options.data){
      view = options.data.view;
    }
    throw new Ember.Error(Ember.String.fmt(error, [view, path, this]));
  });
  
  /**
    Register a bound handlebars helper. Bound helpers behave similarly to regular
    handlebars helpers, with the added ability to re-render when the underlying data
    changes.
  
    ## Simple example
  
    ```javascript
    Ember.Handlebars.registerBoundHelper('capitalize', function(value) {
      return value.toUpperCase();
    });
    ```
  
    The above bound helper can be used inside of templates as follows:
  
    ```handlebars
    {{capitalize name}}
    ```
  
    In this case, when the `name` property of the template's context changes,
    the rendered value of the helper will update to reflect this change.
  
    ## Example with options
  
    Like normal handlebars helpers, bound helpers have access to the options
    passed into the helper call.
  
    ```javascript
    Ember.Handlebars.registerBoundHelper('repeat', function(value, options) {
      var count = options.hash.count;
      var a = [];
      while(a.length < count){
          a.push(value);
      }
      return a.join('');
    });
    ```
  
    This helper could be used in a template as follows:
  
    ```handlebars
    {{repeat text count=3}}
    ```
  
    ## Example with bound options
  
    Bound hash options are also supported. Example:
  
    ```handlebars
    {{repeat text countBinding="numRepeats"}}
    ```
  
    In this example, count will be bound to the value of
    the `numRepeats` property on the context. If that property
    changes, the helper will be re-rendered.
  
    ## Example with extra dependencies
  
    The `Ember.Handlebars.registerBoundHelper` method takes a variable length
    third parameter which indicates extra dependencies on the passed in value.
    This allows the handlebars helper to update when these dependencies change.
  
    ```javascript
    Ember.Handlebars.registerBoundHelper('capitalizeName', function(value) {
      return value.get('name').toUpperCase();
    }, 'name');
    ```
  
    ## Example with multiple bound properties
  
    `Ember.Handlebars.registerBoundHelper` supports binding to
    multiple properties, e.g.:
  
    ```javascript
    Ember.Handlebars.registerBoundHelper('concatenate', function() {
      var values = arguments[arguments.length - 1];
      return values.join('||');
    });
    ```
  
    Which allows for template syntax such as `{{concatenate prop1 prop2}}` or
    `{{concatenate prop1 prop2 prop3}}`. If any of the properties change,
    the helpr will re-render.  Note that dependency keys cannot be
    using in conjunction with multi-property helpers, since it is ambiguous
    which property the dependent keys would belong to.
  
    ## Use with unbound helper
  
    The `{{unbound}}` helper can be used with bound helper invocations
    to render them in their unbound form, e.g.
  
    ```handlebars
    {{unbound capitalize name}}
    ```
  
    In this example, if the name property changes, the helper
    will not re-render.
  
    ## Use with blocks not supported
  
    Bound helpers do not support use with Handlebars blocks or
    the addition of child views of any kind.
  
    @method registerBoundHelper
    @for Ember.Handlebars
    @param {String} name
    @param {Function} function
    @param {String} dependentKeys*
  */
  Ember.Handlebars.registerBoundHelper = function(name, fn) {
    var dependentKeys = slice.call(arguments, 2);
  
    function helper() {
      var properties = slice.call(arguments, 0, -1),
        numProperties = properties.length,
        options = arguments[arguments.length - 1],
        normalizedProperties = [],
        data = options.data,
        hash = options.hash,
        view = data.view,
        currentContext = (options.contexts && options.contexts[0]) || this,
        normalized,
        pathRoot, path,
        loc, hashOption;
  
      Ember.assert("registerBoundHelper-generated helpers do not support use with Handlebars blocks.", !options.fn);
  
      // Detect bound options (e.g. countBinding="otherCount")
      hash.boundOptions = {};
      for (hashOption in hash) {
        if (!hash.hasOwnProperty(hashOption)) { continue; }
  
        if (Ember.IS_BINDING.test(hashOption) && typeof hash[hashOption] === 'string') {
          // Lop off 'Binding' suffix.
          hash.boundOptions[hashOption.slice(0, -7)] = hash[hashOption];
        }
      }
  
      // Expose property names on data.properties object.
      data.properties = [];
      for (loc = 0; loc < numProperties; ++loc) {
        data.properties.push(properties[loc]);
        normalizedProperties.push(normalizePath(currentContext, properties[loc], data));
      }
  
      if (data.isUnbound) {
        return evaluateUnboundHelper(this, fn, normalizedProperties, options);
      }
  
      if (dependentKeys.length === 0) {
        return evaluateMultiPropertyBoundHelper(currentContext, fn, normalizedProperties, options);
      }
  
      Ember.assert("Dependent keys can only be used with single-property helpers.", properties.length === 1);
  
      normalized = normalizedProperties[0];
  
      pathRoot = normalized.root;
      path = normalized.path;
  
      var bindView = new Ember._SimpleHandlebarsView(
        path, pathRoot, !options.hash.unescaped, options.data
      );
  
      bindView.normalizedValue = function() {
        var value = Ember._SimpleHandlebarsView.prototype.normalizedValue.call(bindView);
        return fn.call(view, value, options);
      };
  
      view.appendChild(bindView);
  
      view.registerObserver(pathRoot, path, bindView, bindView.rerender);
  
      for (var i=0, l=dependentKeys.length; i<l; i++) {
        view.registerObserver(pathRoot, path + '.' + dependentKeys[i], bindView, bindView.rerender);
      }
    }
  
    helper._rawFunction = fn;
    Ember.Handlebars.registerHelper(name, helper);
  };
  
  /**
    @private
  
    Renders the unbound form of an otherwise bound helper function.
  
    @method evaluateMultiPropertyBoundHelper
    @param {Function} fn
    @param {Object} context
    @param {Array} normalizedProperties
    @param {String} options
  */
  function evaluateMultiPropertyBoundHelper(context, fn, normalizedProperties, options) {
    var numProperties = normalizedProperties.length,
        data = options.data,
        view = data.view,
        hash = options.hash,
        boundOptions = hash.boundOptions,
        watchedProperties,
        boundOption, bindView, loc, property, len;
  
    bindView = new Ember._SimpleHandlebarsView(null, null, !hash.unescaped, data);
    bindView.normalizedValue = function() {
      var args = [], boundOption;
  
      // Copy over bound options.
      for (boundOption in boundOptions) {
        if (!boundOptions.hasOwnProperty(boundOption)) { continue; }
        property = normalizePath(context, boundOptions[boundOption], data);
        bindView.path = property.path;
        bindView.pathRoot = property.root;
        hash[boundOption] = Ember._SimpleHandlebarsView.prototype.normalizedValue.call(bindView);
      }
  
      for (loc = 0; loc < numProperties; ++loc) {
        property = normalizedProperties[loc];
        bindView.path = property.path;
        bindView.pathRoot = property.root;
        args.push(Ember._SimpleHandlebarsView.prototype.normalizedValue.call(bindView));
      }
      args.push(options);
      return fn.apply(context, args);
    };
  
    view.appendChild(bindView);
  
    // Assemble liast of watched properties that'll re-render this helper.
    watchedProperties = [];
    for (boundOption in boundOptions) {
      if (boundOptions.hasOwnProperty(boundOption)) {
        watchedProperties.push(normalizePath(context, boundOptions[boundOption], data));
      }
    }
    watchedProperties = watchedProperties.concat(normalizedProperties);
  
    // Observe each property.
    for (loc = 0, len = watchedProperties.length; loc < len; ++loc) {
      property = watchedProperties[loc];
      view.registerObserver(property.root, property.path, bindView, bindView.rerender);
    }
  
  }
  
  /**
    @private
  
    Renders the unbound form of an otherwise bound helper function.
  
    @method evaluateUnboundHelper
    @param {Function} fn
    @param {Object} context
    @param {Array} normalizedProperties
    @param {String} options
  */
  function evaluateUnboundHelper(context, fn, normalizedProperties, options) {
    var args = [], hash = options.hash, boundOptions = hash.boundOptions, loc, len, property, boundOption;
  
    for (boundOption in boundOptions) {
      if (!boundOptions.hasOwnProperty(boundOption)) { continue; }
      hash[boundOption] = Ember.Handlebars.get(context, boundOptions[boundOption], options);
    }
  
    for(loc = 0, len = normalizedProperties.length; loc < len; ++loc) {
      property = normalizedProperties[loc];
      args.push(Ember.Handlebars.get(context, property.path, options));
    }
    args.push(options);
    return fn.apply(context, args);
  }
  
  /**
    @private
  
    Overrides Handlebars.template so that we can distinguish
    user-created, top-level templates from inner contexts.
  
    @method template
    @for Ember.Handlebars
    @param {String} template spec
  */
  Ember.Handlebars.template = function(spec){
    var t = Handlebars.template(spec);
    t.isTop = true;
    return t;
  };
  
  })();
  
  
  
  (function() {
  /**
    @method htmlSafe
    @for Ember.String
    @static
  */
  Ember.String.htmlSafe = function(str) {
    return new Handlebars.SafeString(str);
  };
  
  var htmlSafe = Ember.String.htmlSafe;
  
  if (Ember.EXTEND_PROTOTYPES === true || Ember.EXTEND_PROTOTYPES.String) {
  
    /**
      See `Ember.String.htmlSafe`.
  
      @method htmlSafe
      @for String
    */
    String.prototype.htmlSafe = function() {
      return htmlSafe(this);
    };
  }
  
  })();
  
  
  
  (function() {
  Ember.Handlebars.resolvePaths = function(options) {
    var ret = [],
        contexts = options.contexts,
        roots = options.roots,
        data = options.data;
  
    for (var i=0, l=contexts.length; i<l; i++) {
      ret.push( Ember.Handlebars.get(roots[i], contexts[i], { data: data }) );
    }
  
    return ret;
  };
  
  })();
  
  
  
  (function() {
  /*jshint newcap:false*/
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var set = Ember.set, get = Ember.get;
  var Metamorph = requireModule('metamorph');
  
  function notifyMutationListeners() {
    Ember.run.once(Ember.View, 'notifyMutationListeners');
  }
  
  // DOMManager should just abstract dom manipulation between jquery and metamorph
  var DOMManager = {
    remove: function(view) {
      view.morph.remove();
      notifyMutationListeners();
    },
  
    prepend: function(view, html) {
      view.morph.prepend(html);
      notifyMutationListeners();
    },
  
    after: function(view, html) {
      view.morph.after(html);
      notifyMutationListeners();
    },
  
    html: function(view, html) {
      view.morph.html(html);
      notifyMutationListeners();
    },
  
    // This is messed up.
    replace: function(view) {
      var morph = view.morph;
  
      view.transitionTo('preRender');
  
      Ember.run.schedule('render', this, function() {
        if (view.isDestroying) { return; }
  
        view.clearRenderedChildren();
        var buffer = view.renderToBuffer();
  
        view.invokeRecursively(function(view) {
          view.propertyWillChange('element');
        });
        view.triggerRecursively('willInsertElement');
  
        morph.replaceWith(buffer.string());
        view.transitionTo('inDOM');
  
        view.invokeRecursively(function(view) {
          view.propertyDidChange('element');
        });
        view.triggerRecursively('didInsertElement');
  
        notifyMutationListeners();
      });
    },
  
    empty: function(view) {
      view.morph.html("");
      notifyMutationListeners();
    }
  };
  
  // The `morph` and `outerHTML` properties are internal only
  // and not observable.
  
  /**
    @class _Metamorph
    @namespace Ember
    @extends Ember.Mixin
    @private
  */
  Ember._Metamorph = Ember.Mixin.create({
    isVirtual: true,
    tagName: '',
  
    instrumentName: 'metamorph',
  
    init: function() {
      this._super();
      this.morph = Metamorph();
      Ember.deprecate('Supplying a tagName to Metamorph views is unreliable and is deprecated. You may be setting the tagName on a Handlebars helper that creates a Metamorph.', !this.tagName);
    },
  
    beforeRender: function(buffer) {
      buffer.push(this.morph.startTag());
      buffer.pushOpeningTag();
    },
  
    afterRender: function(buffer) {
      buffer.pushClosingTag();
      buffer.push(this.morph.endTag());
    },
  
    createElement: function() {
      var buffer = this.renderToBuffer();
      this.outerHTML = buffer.string();
      this.clearBuffer();
    },
  
    domManager: DOMManager
  });
  
  /**
    @class _MetamorphView
    @namespace Ember
    @extends Ember.View
    @uses Ember._Metamorph
    @private
  */
  Ember._MetamorphView = Ember.View.extend(Ember._Metamorph);
  
  /**
    @class _SimpleMetamorphView
    @namespace Ember
    @extends Ember.CoreView
    @uses Ember._Metamorph
    @private
  */
  Ember._SimpleMetamorphView = Ember.CoreView.extend(Ember._Metamorph);
  
  
  })();
  
  
  
  (function() {
  /*globals Handlebars */
  /*jshint newcap:false*/
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var get = Ember.get, set = Ember.set, handlebarsGet = Ember.Handlebars.get;
  var Metamorph = requireModule('metamorph');
  function SimpleHandlebarsView(path, pathRoot, isEscaped, templateData) {
    this.path = path;
    this.pathRoot = pathRoot;
    this.isEscaped = isEscaped;
    this.templateData = templateData;
  
    this.morph = Metamorph();
    this.state = 'preRender';
    this.updateId = null;
  }
  
  Ember._SimpleHandlebarsView = SimpleHandlebarsView;
  
  SimpleHandlebarsView.prototype = {
    isVirtual: true,
    isView: true,
  
    destroy: function () {
      if (this.updateId) {
        Ember.run.cancel(this.updateId);
        this.updateId = null;
      }
      this.morph = null;
    },
  
    propertyWillChange: Ember.K,
  
    propertyDidChange: Ember.K,
  
    normalizedValue: function() {
      var path = this.path,
          pathRoot = this.pathRoot,
          result, templateData;
  
      // Use the pathRoot as the result if no path is provided. This
      // happens if the path is `this`, which gets normalized into
      // a `pathRoot` of the current Handlebars context and a path
      // of `''`.
      if (path === '') {
        result = pathRoot;
      } else {
        templateData = this.templateData;
        result = handlebarsGet(pathRoot, path, { data: templateData });
      }
  
      return result;
    },
  
    renderToBuffer: function(buffer) {
      var string = '';
  
      string += this.morph.startTag();
      string += this.render();
      string += this.morph.endTag();
  
      buffer.push(string);
    },
  
    render: function() {
      // If not invoked via a triple-mustache ({{{foo}}}), escape
      // the content of the template.
      var escape = this.isEscaped;
      var result = this.normalizedValue();
  
      if (result === null || result === undefined) {
        result = "";
      } else if (!(result instanceof Handlebars.SafeString)) {
        result = String(result);
      }
  
      if (escape) { result = Handlebars.Utils.escapeExpression(result); }
      return result;
    },
  
    rerender: function() {
      switch(this.state) {
        case 'preRender':
        case 'destroying':
          break;
        case 'inBuffer':
          throw new Ember.Error("Something you did tried to replace an {{expression}} before it was inserted into the DOM.");
        case 'hasElement':
        case 'inDOM':
          this.updateId = Ember.run.scheduleOnce('render', this, 'update');
          break;
      }
  
      return this;
    },
  
    update: function () {
      this.updateId = null;
      this.morph.html(this.render());
    },
  
    transitionTo: function(state) {
      this.state = state;
    }
  };
  
  var states = Ember.View.cloneStates(Ember.View.states), merge = Ember.merge;
  
  merge(states._default, {
    rerenderIfNeeded: Ember.K
  });
  
  merge(states.inDOM, {
    rerenderIfNeeded: function(view) {
      if (view.normalizedValue() !== view._lastNormalizedValue) {
        view.rerender();
      }
    }
  });
  
  /**
    `Ember._HandlebarsBoundView` is a private view created by the Handlebars
    `{{bind}}` helpers that is used to keep track of bound properties.
  
    Every time a property is bound using a `{{mustache}}`, an anonymous subclass
    of `Ember._HandlebarsBoundView` is created with the appropriate sub-template
    and context set up. When the associated property changes, just the template
    for this view will re-render.
  
    @class _HandlebarsBoundView
    @namespace Ember
    @extends Ember._MetamorphView
    @private
  */
  Ember._HandlebarsBoundView = Ember._MetamorphView.extend({
    instrumentName: 'boundHandlebars',
    states: states,
  
    /**
      The function used to determine if the `displayTemplate` or
      `inverseTemplate` should be rendered. This should be a function that takes
      a value and returns a Boolean.
  
      @property shouldDisplayFunc
      @type Function
      @default null
    */
    shouldDisplayFunc: null,
  
    /**
      Whether the template rendered by this view gets passed the context object
      of its parent template, or gets passed the value of retrieving `path`
      from the `pathRoot`.
  
      For example, this is true when using the `{{#if}}` helper, because the
      template inside the helper should look up properties relative to the same
      object as outside the block. This would be `false` when used with `{{#with
      foo}}` because the template should receive the object found by evaluating
      `foo`.
  
      @property preserveContext
      @type Boolean
      @default false
    */
    preserveContext: false,
  
    /**
      If `preserveContext` is true, this is the object that will be used
      to render the template.
  
      @property previousContext
      @type Object
    */
    previousContext: null,
  
    /**
      The template to render when `shouldDisplayFunc` evaluates to `true`.
  
      @property displayTemplate
      @type Function
      @default null
    */
    displayTemplate: null,
  
    /**
      The template to render when `shouldDisplayFunc` evaluates to `false`.
  
      @property inverseTemplate
      @type Function
      @default null
    */
    inverseTemplate: null,
  
  
    /**
      The path to look up on `pathRoot` that is passed to
      `shouldDisplayFunc` to determine which template to render.
  
      In addition, if `preserveContext` is `false,` the object at this path will
      be passed to the template when rendering.
  
      @property path
      @type String
      @default null
    */
    path: null,
  
    /**
      The object from which the `path` will be looked up. Sometimes this is the
      same as the `previousContext`, but in cases where this view has been
      generated for paths that start with a keyword such as `view` or
      `controller`, the path root will be that resolved object.
  
      @property pathRoot
      @type Object
    */
    pathRoot: null,
  
    normalizedValue: function() {
      var path = get(this, 'path'),
          pathRoot  = get(this, 'pathRoot'),
          valueNormalizer = get(this, 'valueNormalizerFunc'),
          result, templateData;
  
      // Use the pathRoot as the result if no path is provided. This
      // happens if the path is `this`, which gets normalized into
      // a `pathRoot` of the current Handlebars context and a path
      // of `''`.
      if (path === '') {
        result = pathRoot;
      } else {
        templateData = get(this, 'templateData');
        result = handlebarsGet(pathRoot, path, { data: templateData });
      }
  
      return valueNormalizer ? valueNormalizer(result) : result;
    },
  
    rerenderIfNeeded: function() {
      this.currentState.rerenderIfNeeded(this);
    },
  
    /**
      Determines which template to invoke, sets up the correct state based on
      that logic, then invokes the default `Ember.View` `render` implementation.
  
      This method will first look up the `path` key on `pathRoot`,
      then pass that value to the `shouldDisplayFunc` function. If that returns
      `true,` the `displayTemplate` function will be rendered to DOM. Otherwise,
      `inverseTemplate`, if specified, will be rendered.
  
      For example, if this `Ember._HandlebarsBoundView` represented the `{{#with
      foo}}` helper, it would look up the `foo` property of its context, and
      `shouldDisplayFunc` would always return true. The object found by looking
      up `foo` would be passed to `displayTemplate`.
  
      @method render
      @param {Ember.RenderBuffer} buffer
    */
    render: function(buffer) {
      // If not invoked via a triple-mustache ({{{foo}}}), escape
      // the content of the template.
      var escape = get(this, 'isEscaped');
  
      var shouldDisplay = get(this, 'shouldDisplayFunc'),
          preserveContext = get(this, 'preserveContext'),
          context = get(this, 'previousContext');
  
      var inverseTemplate = get(this, 'inverseTemplate'),
          displayTemplate = get(this, 'displayTemplate');
  
      var result = this.normalizedValue();
      this._lastNormalizedValue = result;
  
      // First, test the conditional to see if we should
      // render the template or not.
      if (shouldDisplay(result)) {
        set(this, 'template', displayTemplate);
  
        // If we are preserving the context (for example, if this
        // is an #if block, call the template with the same object.
        if (preserveContext) {
          set(this, '_context', context);
        } else {
        // Otherwise, determine if this is a block bind or not.
        // If so, pass the specified object to the template
          if (displayTemplate) {
            set(this, '_context', result);
          } else {
          // This is not a bind block, just push the result of the
          // expression to the render context and return.
            if (result === null || result === undefined) {
              result = "";
            } else if (!(result instanceof Handlebars.SafeString)) {
              result = String(result);
            }
  
            if (escape) { result = Handlebars.Utils.escapeExpression(result); }
            buffer.push(result);
            return;
          }
        }
      } else if (inverseTemplate) {
        set(this, 'template', inverseTemplate);
  
        if (preserveContext) {
          set(this, '_context', context);
        } else {
          set(this, '_context', result);
        }
      } else {
        set(this, 'template', function() { return ''; });
      }
  
      return this._super(buffer);
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var get = Ember.get, set = Ember.set, fmt = Ember.String.fmt;
  var handlebarsGet = Ember.Handlebars.get, normalizePath = Ember.Handlebars.normalizePath;
  var forEach = Ember.ArrayPolyfills.forEach;
  
  var EmberHandlebars = Ember.Handlebars, helpers = EmberHandlebars.helpers;
  
  function exists(value){
    return !Ember.isNone(value);
  }
  
  // Binds a property into the DOM. This will create a hook in DOM that the
  // KVO system will look for and update if the property changes.
  function bind(property, options, preserveContext, shouldDisplay, valueNormalizer, childProperties) {
    var data = options.data,
        fn = options.fn,
        inverse = options.inverse,
        view = data.view,
        currentContext = this,
        normalized, observer, i;
  
    normalized = normalizePath(currentContext, property, data);
  
    // Set up observers for observable objects
    if ('object' === typeof this) {
      if (data.insideGroup) {
        observer = function() {
          Ember.run.once(view, 'rerender');
        };
  
        var template, context, result = handlebarsGet(currentContext, property, options);
  
        result = valueNormalizer(result);
  
        context = preserveContext ? currentContext : result;
        if (shouldDisplay(result)) {
          template = fn;
        } else if (inverse) {
          template = inverse;
        }
  
        template(context, { data: options.data });
      } else {
        // Create the view that will wrap the output of this template/property
        // and add it to the nearest view's childViews array.
        // See the documentation of Ember._HandlebarsBoundView for more.
        var bindView = view.createChildView(Ember._HandlebarsBoundView, {
          preserveContext: preserveContext,
          shouldDisplayFunc: shouldDisplay,
          valueNormalizerFunc: valueNormalizer,
          displayTemplate: fn,
          inverseTemplate: inverse,
          path: property,
          pathRoot: currentContext,
          previousContext: currentContext,
          isEscaped: !options.hash.unescaped,
          templateData: options.data
        });
  
        view.appendChild(bindView);
  
        observer = function() {
          Ember.run.scheduleOnce('render', bindView, 'rerenderIfNeeded');
        };
      }
  
      // Observes the given property on the context and
      // tells the Ember._HandlebarsBoundView to re-render. If property
      // is an empty string, we are printing the current context
      // object ({{this}}) so updating it is not our responsibility.
      if (normalized.path !== '') {
        view.registerObserver(normalized.root, normalized.path, observer);
        if (childProperties) {
          for (i=0; i<childProperties.length; i++) {
            view.registerObserver(normalized.root, normalized.path+'.'+childProperties[i], observer);
          }
        }
      }
    } else {
      // The object is not observable, so just render it out and
      // be done with it.
      data.buffer.push(handlebarsGet(currentContext, property, options));
    }
  }
  
  function simpleBind(property, options) {
    var data = options.data,
        view = data.view,
        currentContext = this,
        normalized, observer;
  
    normalized = normalizePath(currentContext, property, data);
  
    // Set up observers for observable objects
    if ('object' === typeof this) {
      if (data.insideGroup) {
        observer = function() {
          Ember.run.once(view, 'rerender');
        };
  
        var result = handlebarsGet(currentContext, property, options);
        if (result === null || result === undefined) { result = ""; }
        data.buffer.push(result);
      } else {
        var bindView = new Ember._SimpleHandlebarsView(
          property, currentContext, !options.hash.unescaped, options.data
        );
  
        bindView._parentView = view;
        view.appendChild(bindView);
  
        observer = function() {
          Ember.run.scheduleOnce('render', bindView, 'rerender');
        };
      }
  
      // Observes the given property on the context and
      // tells the Ember._HandlebarsBoundView to re-render. If property
      // is an empty string, we are printing the current context
      // object ({{this}}) so updating it is not our responsibility.
      if (normalized.path !== '') {
        view.registerObserver(normalized.root, normalized.path, observer);
      }
    } else {
      // The object is not observable, so just render it out and
      // be done with it.
      data.buffer.push(handlebarsGet(currentContext, property, options));
    }
  }
  
  /**
    @private
  
    '_triageMustache' is used internally select between a binding and helper for
    the given context. Until this point, it would be hard to determine if the
    mustache is a property reference or a regular helper reference. This triage
    helper resolves that.
  
    This would not be typically invoked by directly.
  
    @method _triageMustache
    @for Ember.Handlebars.helpers
    @param {String} property Property/helperID to triage
    @param {Function} fn Context to provide for rendering
    @return {String} HTML string
  */
  EmberHandlebars.registerHelper('_triageMustache', function(property, fn) {
    Ember.assert("You cannot pass more than one argument to the _triageMustache helper", arguments.length <= 2);
    if (helpers[property]) {
      return helpers[property].call(this, fn);
    }
    else {
      return helpers.bind.apply(this, arguments);
    }
  });
  
  /**
    @private
  
    `bind` can be used to display a value, then update that value if it
    changes. For example, if you wanted to print the `title` property of
    `content`:
  
    ```handlebars
    {{bind "content.title"}}
    ```
  
    This will return the `title` property as a string, then create a new observer
    at the specified path. If it changes, it will update the value in DOM. Note
    that if you need to support IE7 and IE8 you must modify the model objects
    properties using `Ember.get()` and `Ember.set()` for this to work as it
    relies on Ember's KVO system. For all other browsers this will be handled for
    you automatically.
  
    @method bind
    @for Ember.Handlebars.helpers
    @param {String} property Property to bind
    @param {Function} fn Context to provide for rendering
    @return {String} HTML string
  */
  EmberHandlebars.registerHelper('bind', function(property, options) {
    Ember.assert("You cannot pass more than one argument to the bind helper", arguments.length <= 2);
  
    var context = (options.contexts && options.contexts[0]) || this;
  
    if (!options.fn) {
      return simpleBind.call(context, property, options);
    }
  
    return bind.call(context, property, options, false, exists);
  });
  
  /**
    @private
  
    Use the `boundIf` helper to create a conditional that re-evaluates
    whenever the truthiness of the bound value changes.
  
    ```handlebars
    {{#boundIf "content.shouldDisplayTitle"}}
      {{content.title}}
    {{/boundIf}}
    ```
  
    @method boundIf
    @for Ember.Handlebars.helpers
    @param {String} property Property to bind
    @param {Function} fn Context to provide for rendering
    @return {String} HTML string
  */
  EmberHandlebars.registerHelper('boundIf', function(property, fn) {
    var context = (fn.contexts && fn.contexts[0]) || this;
    var func = function(result) {
      var truthy = result && get(result, 'isTruthy');
      if (typeof truthy === 'boolean') { return truthy; }
  
      if (Ember.isArray(result)) {
        return get(result, 'length') !== 0;
      } else {
        return !!result;
      }
    };
  
    return bind.call(context, property, fn, true, func, func, ['isTruthy', 'length']);
  });
  
  /**
    @method with
    @for Ember.Handlebars.helpers
    @param {Function} context
    @param {Hash} options
    @return {String} HTML string
  */
  EmberHandlebars.registerHelper('with', function(context, options) {
    if (arguments.length === 4) {
      var keywordName, path, rootPath, normalized;
  
      Ember.assert("If you pass more than one argument to the with helper, it must be in the form #with foo as bar", arguments[1] === "as");
      options = arguments[3];
      keywordName = arguments[2];
      path = arguments[0];
  
      Ember.assert("You must pass a block to the with helper", options.fn && options.fn !== Handlebars.VM.noop);
  
      if (Ember.isGlobalPath(path)) {
        Ember.bind(options.data.keywords, keywordName, path);
      } else {
        normalized = normalizePath(this, path, options.data);
        path = normalized.path;
        rootPath = normalized.root;
  
        // This is a workaround for the fact that you cannot bind separate objects
        // together. When we implement that functionality, we should use it here.
        var contextKey = Ember.$.expando + Ember.guidFor(rootPath);
        options.data.keywords[contextKey] = rootPath;
  
        // if the path is '' ("this"), just bind directly to the current context
        var contextPath = path ? contextKey + '.' + path : contextKey;
        Ember.bind(options.data.keywords, keywordName, contextPath);
      }
  
      return bind.call(this, path, options, true, exists);
    } else {
      Ember.assert("You must pass exactly one argument to the with helper", arguments.length === 2);
      Ember.assert("You must pass a block to the with helper", options.fn && options.fn !== Handlebars.VM.noop);
      return helpers.bind.call(options.contexts[0], context, options);
    }
  });
  
  
  /**
    See `boundIf`
  
    @method if
    @for Ember.Handlebars.helpers
    @param {Function} context
    @param {Hash} options
    @return {String} HTML string
  */
  EmberHandlebars.registerHelper('if', function(context, options) {
    Ember.assert("You must pass exactly one argument to the if helper", arguments.length === 2);
    Ember.assert("You must pass a block to the if helper", options.fn && options.fn !== Handlebars.VM.noop);
  
    return helpers.boundIf.call(options.contexts[0], context, options);
  });
  
  /**
    @method unless
    @for Ember.Handlebars.helpers
    @param {Function} context
    @param {Hash} options
    @return {String} HTML string
  */
  EmberHandlebars.registerHelper('unless', function(context, options) {
    Ember.assert("You must pass exactly one argument to the unless helper", arguments.length === 2);
    Ember.assert("You must pass a block to the unless helper", options.fn && options.fn !== Handlebars.VM.noop);
  
    var fn = options.fn, inverse = options.inverse;
  
    options.fn = inverse;
    options.inverse = fn;
  
    return helpers.boundIf.call(options.contexts[0], context, options);
  });
  
  /**
    `bindAttr` allows you to create a binding between DOM element attributes and
    Ember objects. For example:
  
    ```handlebars
    <img {{bindAttr src="imageUrl" alt="imageTitle"}}>
    ```
  
    The above handlebars template will fill the `<img>`'s `src` attribute will
    the value of the property referenced with `"imageUrl"` and its `alt`
    attribute with the value of the property referenced with `"imageTitle"`.
  
    If the rendering context of this template is the following object:
  
    ```javascript
    {
      imageUrl: 'http://lolcats.info/haz-a-funny',
      imageTitle: 'A humorous image of a cat'
    }
    ```
  
    The resulting HTML output will be:
  
    ```html
    <img src="http://lolcats.info/haz-a-funny" alt="A humorous image of a cat">
    ```
  
    `bindAttr` cannot redeclare existing DOM element attributes. The use of `src`
    in the following `bindAttr` example will be ignored and the hard coded value
    of `src="/failwhale.gif"` will take precedence:
  
    ```handlebars
    <img src="/failwhale.gif" {{bindAttr src="imageUrl" alt="imageTitle"}}>
    ```
  
    ### `bindAttr` and the `class` attribute
  
    `bindAttr` supports a special syntax for handling a number of cases unique
    to the `class` DOM element attribute. The `class` attribute combines
    multiple discreet values into a single attribute as a space-delimited
    list of strings. Each string can be:
  
    * a string return value of an object's property.
    * a boolean return value of an object's property
    * a hard-coded value
  
    A string return value works identically to other uses of `bindAttr`. The
    return value of the property will become the value of the attribute. For
    example, the following view and template:
  
    ```javascript
      AView = Ember.View.extend({
        someProperty: function(){
          return "aValue";
        }.property()
      })
    ```
  
    ```handlebars
    <img {{bindAttr class="view.someProperty}}>
    ```
  
    Result in the following rendered output:
  
    ```html
    <img class="aValue">
    ```
  
    A boolean return value will insert a specified class name if the property
    returns `true` and remove the class name if the property returns `false`.
  
    A class name is provided via the syntax
    `somePropertyName:class-name-if-true`.
  
    ```javascript
    AView = Ember.View.extend({
      someBool: true
    })
    ```
  
    ```handlebars
    <img {{bindAttr class="view.someBool:class-name-if-true"}}>
    ```
  
    Result in the following rendered output:
  
    ```html
    <img class="class-name-if-true">
    ```
  
    An additional section of the binding can be provided if you want to
    replace the existing class instead of removing it when the boolean
    value changes:
  
    ```handlebars
    <img {{bindAttr class="view.someBool:class-name-if-true:class-name-if-false"}}>
    ```
  
    A hard-coded value can be used by prepending `:` to the desired
    class name: `:class-name-to-always-apply`.
  
    ```handlebars
    <img {{bindAttr class=":class-name-to-always-apply"}}>
    ```
  
    Results in the following rendered output:
  
    ```html
    <img class="class-name-to-always-apply">
    ```
  
    All three strategies - string return value, boolean return value, and
    hard-coded value â€“ can be combined in a single declaration:
  
    ```handlebars
    <img {{bindAttr class=":class-name-to-always-apply view.someBool:class-name-if-true view.someProperty"}}>
    ```
  
    @method bindAttr
    @for Ember.Handlebars.helpers
    @param {Hash} options
    @return {String} HTML string
  */
  EmberHandlebars.registerHelper('bindAttr', function(options) {
  
    var attrs = options.hash;
  
    Ember.assert("You must specify at least one hash argument to bindAttr", !!Ember.keys(attrs).length);
  
    var view = options.data.view;
    var ret = [];
    var ctx = this;
  
    // Generate a unique id for this element. This will be added as a
    // data attribute to the element so it can be looked up when
    // the bound property changes.
    var dataId = ++Ember.uuid;
  
    // Handle classes differently, as we can bind multiple classes
    var classBindings = attrs['class'];
    if (classBindings != null) {
      var classResults = EmberHandlebars.bindClasses(this, classBindings, view, dataId, options);
  
      ret.push('class="' + Handlebars.Utils.escapeExpression(classResults.join(' ')) + '"');
      delete attrs['class'];
    }
  
    var attrKeys = Ember.keys(attrs);
  
    // For each attribute passed, create an observer and emit the
    // current value of the property as an attribute.
    forEach.call(attrKeys, function(attr) {
      var path = attrs[attr],
          normalized;
  
      Ember.assert(fmt("You must provide a String for a bound attribute, not %@", [path]), typeof path === 'string');
  
      normalized = normalizePath(ctx, path, options.data);
  
      var value = (path === 'this') ? normalized.root : handlebarsGet(ctx, path, options),
          type = Ember.typeOf(value);
  
      Ember.assert(fmt("Attributes must be numbers, strings or booleans, not %@", [value]), value === null || value === undefined || type === 'number' || type === 'string' || type === 'boolean');
  
      var observer, invoker;
  
      observer = function observer() {
        var result = handlebarsGet(ctx, path, options);
  
        Ember.assert(fmt("Attributes must be numbers, strings or booleans, not %@", [result]), result === null || result === undefined || typeof result === 'number' || typeof result === 'string' || typeof result === 'boolean');
  
        var elem = view.$("[data-bindattr-" + dataId + "='" + dataId + "']");
  
        // If we aren't able to find the element, it means the element
        // to which we were bound has been removed from the view.
        // In that case, we can assume the template has been re-rendered
        // and we need to clean up the observer.
        if (!elem || elem.length === 0) {
          Ember.removeObserver(normalized.root, normalized.path, invoker);
          return;
        }
  
        Ember.View.applyAttributeBindings(elem, attr, result);
      };
  
      // Add an observer to the view for when the property changes.
      // When the observer fires, find the element using the
      // unique data id and update the attribute to the new value.
      // Note: don't add observer when path is 'this' or path
      // is whole keyword e.g. {{#each x in list}} ... {{bindAttr attr="x"}}
      if (path !== 'this' && !(normalized.isKeyword && normalized.path === '' )) {
        view.registerObserver(normalized.root, normalized.path, observer);
      }
  
      // if this changes, also change the logic in ember-views/lib/views/view.js
      if ((type === 'string' || (type === 'number' && !isNaN(value)))) {
        ret.push(attr + '="' + Handlebars.Utils.escapeExpression(value) + '"');
      } else if (value && type === 'boolean') {
        // The developer controls the attr name, so it should always be safe
        ret.push(attr + '="' + attr + '"');
      }
    }, this);
  
    // Add the unique identifier
    // NOTE: We use all lower-case since Firefox has problems with mixed case in SVG
    ret.push('data-bindattr-' + dataId + '="' + dataId + '"');
    return new EmberHandlebars.SafeString(ret.join(' '));
  });
  
  /**
    @private
  
    Helper that, given a space-separated string of property paths and a context,
    returns an array of class names. Calling this method also has the side
    effect of setting up observers at those property paths, such that if they
    change, the correct class name will be reapplied to the DOM element.
  
    For example, if you pass the string "fooBar", it will first look up the
    "fooBar" value of the context. If that value is true, it will add the
    "foo-bar" class to the current element (i.e., the dasherized form of
    "fooBar"). If the value is a string, it will add that string as the class.
    Otherwise, it will not add any new class name.
  
    @method bindClasses
    @for Ember.Handlebars
    @param {Ember.Object} context The context from which to lookup properties
    @param {String} classBindings A string, space-separated, of class bindings
      to use
    @param {Ember.View} view The view in which observers should look for the
      element to update
    @param {Srting} bindAttrId Optional bindAttr id used to lookup elements
    @return {Array} An array of class names to add
  */
  EmberHandlebars.bindClasses = function(context, classBindings, view, bindAttrId, options) {
    var ret = [], newClass, value, elem;
  
    // Helper method to retrieve the property from the context and
    // determine which class string to return, based on whether it is
    // a Boolean or not.
    var classStringForPath = function(root, parsedPath, options) {
      var val,
          path = parsedPath.path;
  
      if (path === 'this') {
        val = root;
      } else if (path === '') {
        val = true;
      } else {
        val = handlebarsGet(root, path, options);
      }
  
      return Ember.View._classStringForValue(path, val, parsedPath.className, parsedPath.falsyClassName);
    };
  
    // For each property passed, loop through and setup
    // an observer.
    forEach.call(classBindings.split(' '), function(binding) {
  
      // Variable in which the old class value is saved. The observer function
      // closes over this variable, so it knows which string to remove when
      // the property changes.
      var oldClass;
  
      var observer, invoker;
  
      var parsedPath = Ember.View._parsePropertyPath(binding),
          path = parsedPath.path,
          pathRoot = context,
          normalized;
  
      if (path !== '' && path !== 'this') {
        normalized = normalizePath(context, path, options.data);
  
        pathRoot = normalized.root;
        path = normalized.path;
      }
  
      // Set up an observer on the context. If the property changes, toggle the
      // class name.
      observer = function() {
        // Get the current value of the property
        newClass = classStringForPath(context, parsedPath, options);
        elem = bindAttrId ? view.$("[data-bindattr-" + bindAttrId + "='" + bindAttrId + "']") : view.$();
  
        // If we can't find the element anymore, a parent template has been
        // re-rendered and we've been nuked. Remove the observer.
        if (!elem || elem.length === 0) {
          Ember.removeObserver(pathRoot, path, invoker);
        } else {
          // If we had previously added a class to the element, remove it.
          if (oldClass) {
            elem.removeClass(oldClass);
          }
  
          // If necessary, add a new class. Make sure we keep track of it so
          // it can be removed in the future.
          if (newClass) {
            elem.addClass(newClass);
            oldClass = newClass;
          } else {
            oldClass = null;
          }
        }
      };
  
      if (path !== '' && path !== 'this') {
        view.registerObserver(pathRoot, path, observer);
      }
  
      // We've already setup the observer; now we just need to figure out the
      // correct behavior right now on the first pass through.
      value = classStringForPath(context, parsedPath, options);
  
      if (value) {
        ret.push(value);
  
        // Make sure we save the current value so that it can be removed if the
        // observer fires.
        oldClass = value;
      }
    });
  
    return ret;
  };
  
  
  })();
  
  
  
  (function() {
  /*globals Handlebars */
  
  // TODO: Don't require the entire module
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var get = Ember.get, set = Ember.set;
  var EmberHandlebars = Ember.Handlebars;
  
  EmberHandlebars.ViewHelper = Ember.Object.create({
  
    propertiesFromHTMLOptions: function(options, thisContext) {
      var hash = options.hash, data = options.data;
      var extensions = {},
          classes = hash['class'],
          dup = false;
  
      if (hash.id) {
        extensions.elementId = hash.id;
        dup = true;
      }
  
      if (hash.tag) {
        extensions.tagName = hash.tag;
        dup = true;
      }
  
      if (classes) {
        classes = classes.split(' ');
        extensions.classNames = classes;
        dup = true;
      }
  
      if (hash.classBinding) {
        extensions.classNameBindings = hash.classBinding.split(' ');
        dup = true;
      }
  
      if (hash.classNameBindings) {
        if (extensions.classNameBindings === undefined) extensions.classNameBindings = [];
        extensions.classNameBindings = extensions.classNameBindings.concat(hash.classNameBindings.split(' '));
        dup = true;
      }
  
      if (hash.attributeBindings) {
        Ember.assert("Setting 'attributeBindings' via Handlebars is not allowed. Please subclass Ember.View and set it there instead.");
        extensions.attributeBindings = null;
        dup = true;
      }
  
      if (dup) {
        hash = Ember.$.extend({}, hash);
        delete hash.id;
        delete hash.tag;
        delete hash['class'];
        delete hash.classBinding;
      }
  
      // Set the proper context for all bindings passed to the helper. This applies to regular attribute bindings
      // as well as class name bindings. If the bindings are local, make them relative to the current context
      // instead of the view.
      var path;
  
      // Evaluate the context of regular attribute bindings:
      for (var prop in hash) {
        if (!hash.hasOwnProperty(prop)) { continue; }
  
        // Test if the property ends in "Binding"
        if (Ember.IS_BINDING.test(prop) && typeof hash[prop] === 'string') {
          path = this.contextualizeBindingPath(hash[prop], data);
          if (path) { hash[prop] = path; }
        }
      }
  
      // Evaluate the context of class name bindings:
      if (extensions.classNameBindings) {
        for (var b in extensions.classNameBindings) {
          var full = extensions.classNameBindings[b];
          if (typeof full === 'string') {
            // Contextualize the path of classNameBinding so this:
            //
            //     classNameBinding="isGreen:green"
            //
            // is converted to this:
            //
            //     classNameBinding="_parentView.context.isGreen:green"
            var parsedPath = Ember.View._parsePropertyPath(full);
            path = this.contextualizeBindingPath(parsedPath.path, data);
            if (path) { extensions.classNameBindings[b] = path + parsedPath.classNames; }
          }
        }
      }
  
      return Ember.$.extend(hash, extensions);
    },
  
    // Transform bindings from the current context to a context that can be evaluated within the view.
    // Returns null if the path shouldn't be changed.
    //
    // TODO: consider the addition of a prefix that would allow this method to return `path`.
    contextualizeBindingPath: function(path, data) {
      var normalized = Ember.Handlebars.normalizePath(null, path, data);
      if (normalized.isKeyword) {
        return 'templateData.keywords.' + path;
      } else if (Ember.isGlobalPath(path)) {
        return null;
      } else if (path === 'this') {
        return '_parentView.context';
      } else {
        return '_parentView.context.' + path;
      }
    },
  
    helper: function(thisContext, path, options) {
      var data = options.data,
          fn = options.fn,
          newView;
  
      if ('string' === typeof path) {
        newView = EmberHandlebars.get(thisContext, path, options);
        Ember.assert("Unable to find view at path '" + path + "'", !!newView);
      } else {
        newView = path;
      }
  
      Ember.assert(Ember.String.fmt('You must pass a view to the #view helper, not %@ (%@)', [path, newView]), Ember.View.detect(newView) || Ember.View.detectInstance(newView));
  
      var viewOptions = this.propertiesFromHTMLOptions(options, thisContext);
      var currentView = data.view;
      viewOptions.templateData = data;
      var newViewProto = newView.proto ? newView.proto() : newView;
  
      if (fn) {
        Ember.assert("You cannot provide a template block if you also specified a templateName", !get(viewOptions, 'templateName') && !get(newViewProto, 'templateName'));
        viewOptions.template = fn;
      }
  
      // We only want to override the `_context` computed property if there is
      // no specified controller. See View#_context for more information.
      if (!newViewProto.controller && !newViewProto.controllerBinding && !viewOptions.controller && !viewOptions.controllerBinding) {
        viewOptions._context = thisContext;
      }
  
      currentView.appendChild(newView, viewOptions);
    }
  });
  
  /**
    `{{view}}` inserts a new instance of `Ember.View` into a template passing its
    options to the `Ember.View`'s `create` method and using the supplied block as
    the view's own template.
  
    An empty `<body>` and the following template:
  
    ```handlebars
    A span:
    {{#view tagName="span"}}
      hello.
    {{/view}}
    ```
  
    Will result in HTML structure:
  
    ```html
    <body>
      <!-- Note: the handlebars template script
           also results in a rendered Ember.View
           which is the outer <div> here -->
  
      <div class="ember-view">
        A span:
        <span id="ember1" class="ember-view">
          Hello.
        </span>
      </div>
    </body>
    ```
  
    ### `parentView` setting
  
    The `parentView` property of the new `Ember.View` instance created through
    `{{view}}` will be set to the `Ember.View` instance of the template where
    `{{view}}` was called.
  
    ```javascript
    aView = Ember.View.create({
      template: Ember.Handlebars.compile("{{#view}} my parent: {{parentView.elementId}} {{/view}}")
    });
  
    aView.appendTo('body');
    ```
  
    Will result in HTML structure:
  
    ```html
    <div id="ember1" class="ember-view">
      <div id="ember2" class="ember-view">
        my parent: ember1
      </div>
    </div>
    ```
  
    ### Setting CSS id and class attributes
  
    The HTML `id` attribute can be set on the `{{view}}`'s resulting element with
    the `id` option. This option will _not_ be passed to `Ember.View.create`.
  
    ```handlebars
    {{#view tagName="span" id="a-custom-id"}}
      hello.
    {{/view}}
    ```
  
    Results in the following HTML structure:
  
    ```html
    <div class="ember-view">
      <span id="a-custom-id" class="ember-view">
        hello.
      </span>
    </div>
    ```
  
    The HTML `class` attribute can be set on the `{{view}}`'s resulting element
    with the `class` or `classNameBindings` options. The `class` option will
    directly set the CSS `class` attribute and will not be passed to
    `Ember.View.create`. `classNameBindings` will be passed to `create` and use
    `Ember.View`'s class name binding functionality:
  
    ```handlebars
    {{#view tagName="span" class="a-custom-class"}}
      hello.
    {{/view}}
    ```
  
    Results in the following HTML structure:
  
    ```html
    <div class="ember-view">
      <span id="ember2" class="ember-view a-custom-class">
        hello.
      </span>
    </div>
    ```
  
    ### Supplying a different view class
  
    `{{view}}` can take an optional first argument before its supplied options to
    specify a path to a custom view class.
  
    ```handlebars
    {{#view "MyApp.CustomView"}}
      hello.
    {{/view}}
    ```
  
    The first argument can also be a relative path accessible from the current
    context.
  
    ```javascript
    MyApp = Ember.Application.create({});
    MyApp.OuterView = Ember.View.extend({
      innerViewClass: Ember.View.extend({
        classNames: ['a-custom-view-class-as-property']
      }),
      template: Ember.Handlebars.compile('{{#view "view.innerViewClass"}} hi {{/view}}')
    });
  
    MyApp.OuterView.create().appendTo('body');
    ```
  
    Will result in the following HTML:
  
    ```html
    <div id="ember1" class="ember-view">
      <div id="ember2" class="ember-view a-custom-view-class-as-property">
        hi
      </div>
    </div>
    ```
  
    ### Blockless use
  
    If you supply a custom `Ember.View` subclass that specifies its own template
    or provide a `templateName` option to `{{view}}` it can be used without
    supplying a block. Attempts to use both a `templateName` option and supply a
    block will throw an error.
  
    ```handlebars
    {{view "MyApp.ViewWithATemplateDefined"}}
    ```
  
    ### `viewName` property
  
    You can supply a `viewName` option to `{{view}}`. The `Ember.View` instance
    will be referenced as a property of its parent view by this name.
  
    ```javascript
    aView = Ember.View.create({
      template: Ember.Handlebars.compile('{{#view viewName="aChildByName"}} hi {{/view}}')
    });
  
    aView.appendTo('body');
    aView.get('aChildByName') // the instance of Ember.View created by {{view}} helper
    ```
  
    @method view
    @for Ember.Handlebars.helpers
    @param {String} path
    @param {Hash} options
    @return {String} HTML string
  */
  EmberHandlebars.registerHelper('view', function(path, options) {
    Ember.assert("The view helper only takes a single argument", arguments.length <= 2);
  
    // If no path is provided, treat path param as options.
    if (path && path.data && path.data.isRenderData) {
      options = path;
      path = "Ember.View";
    }
  
    return EmberHandlebars.ViewHelper.helper(this, path, options);
  });
  
  
  })();
  
  
  
  (function() {
  /*globals Handlebars */
  
  // TODO: Don't require all of this module
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var get = Ember.get, handlebarsGet = Ember.Handlebars.get, fmt = Ember.String.fmt;
  
  /**
    `{{collection}}` is a `Ember.Handlebars` helper for adding instances of
    `Ember.CollectionView` to a template. See `Ember.CollectionView` for
    additional information on how a `CollectionView` functions.
  
    `{{collection}}`'s primary use is as a block helper with a `contentBinding`
    option pointing towards an `Ember.Array`-compatible object. An `Ember.View`
    instance will be created for each item in its `content` property. Each view
    will have its own `content` property set to the appropriate item in the
    collection.
  
    The provided block will be applied as the template for each item's view.
  
    Given an empty `<body>` the following template:
  
    ```handlebars
    {{#collection contentBinding="App.items"}}
      Hi {{view.content.name}}
    {{/collection}}
    ```
  
    And the following application code
  
    ```javascript
    App = Ember.Application.create()
    App.items = [
      Ember.Object.create({name: 'Dave'}),
      Ember.Object.create({name: 'Mary'}),
      Ember.Object.create({name: 'Sara'})
    ]
    ```
  
    Will result in the HTML structure below
  
    ```html
    <div class="ember-view">
      <div class="ember-view">Hi Dave</div>
      <div class="ember-view">Hi Mary</div>
      <div class="ember-view">Hi Sara</div>
    </div>
    ```
  
    ### Blockless Use
  
    If you provide an `itemViewClass` option that has its own `template` you can
    omit the block.
  
    The following template:
  
    ```handlebars
    {{collection contentBinding="App.items" itemViewClass="App.AnItemView"}}
    ```
  
    And application code
  
    ```javascript
    App = Ember.Application.create();
    App.items = [
      Ember.Object.create({name: 'Dave'}),
      Ember.Object.create({name: 'Mary'}),
      Ember.Object.create({name: 'Sara'})
    ];
  
    App.AnItemView = Ember.View.extend({
      template: Ember.Handlebars.compile("Greetings {{view.content.name}}")
    });
    ```
  
    Will result in the HTML structure below
  
    ```html
    <div class="ember-view">
      <div class="ember-view">Greetings Dave</div>
      <div class="ember-view">Greetings Mary</div>
      <div class="ember-view">Greetings Sara</div>
    </div>
    ```
  
    ### Specifying a CollectionView subclass
  
    By default the `{{collection}}` helper will create an instance of
    `Ember.CollectionView`. You can supply a `Ember.CollectionView` subclass to
    the helper by passing it as the first argument:
  
    ```handlebars
    {{#collection App.MyCustomCollectionClass contentBinding="App.items"}}
      Hi {{view.content.name}}
    {{/collection}}
    ```
  
    ### Forwarded `item.*`-named Options
  
    As with the `{{view}}`, helper options passed to the `{{collection}}` will be
    set on the resulting `Ember.CollectionView` as properties. Additionally,
    options prefixed with `item` will be applied to the views rendered for each
    item (note the camelcasing):
  
    ```handlebars
    {{#collection contentBinding="App.items"
                  itemTagName="p"
                  itemClassNames="greeting"}}
      Howdy {{view.content.name}}
    {{/collection}}
    ```
  
    Will result in the following HTML structure:
  
    ```html
    <div class="ember-view">
      <p class="ember-view greeting">Howdy Dave</p>
      <p class="ember-view greeting">Howdy Mary</p>
      <p class="ember-view greeting">Howdy Sara</p>
    </div>
    ```
  
    @method collection
    @for Ember.Handlebars.helpers
    @param {String} path
    @param {Hash} options
    @return {String} HTML string
    @deprecated Use `{{each}}` helper instead.
  */
  Ember.Handlebars.registerHelper('collection', function(path, options) {
    Ember.deprecate("Using the {{collection}} helper without specifying a class has been deprecated as the {{each}} helper now supports the same functionality.", path !== 'collection');
  
    // If no path is provided, treat path param as options.
    if (path && path.data && path.data.isRenderData) {
      options = path;
      path = undefined;
      Ember.assert("You cannot pass more than one argument to the collection helper", arguments.length === 1);
    } else {
      Ember.assert("You cannot pass more than one argument to the collection helper", arguments.length === 2);
    }
  
    var fn = options.fn;
    var data = options.data;
    var inverse = options.inverse;
    var view = options.data.view;
  
    // If passed a path string, convert that into an object.
    // Otherwise, just default to the standard class.
    var collectionClass;
    collectionClass = path ? handlebarsGet(this, path, options) : Ember.CollectionView;
    Ember.assert(fmt("%@ #collection: Could not find collection class %@", [data.view, path]), !!collectionClass);
  
    var hash = options.hash, itemHash = {}, match;
  
    // Extract item view class if provided else default to the standard class
    var itemViewClass, itemViewPath = hash.itemViewClass;
    var collectionPrototype = collectionClass.proto();
    delete hash.itemViewClass;
    itemViewClass = itemViewPath ? handlebarsGet(collectionPrototype, itemViewPath, options) : collectionPrototype.itemViewClass;
    Ember.assert(fmt("%@ #collection: Could not find itemViewClass %@", [data.view, itemViewPath]), !!itemViewClass);
  
    // Go through options passed to the {{collection}} helper and extract options
    // that configure item views instead of the collection itself.
    for (var prop in hash) {
      if (hash.hasOwnProperty(prop)) {
        match = prop.match(/^item(.)(.*)$/);
  
        if(match && prop !== 'itemController') {
          // Convert itemShouldFoo -> shouldFoo
          itemHash[match[1].toLowerCase() + match[2]] = hash[prop];
          // Delete from hash as this will end up getting passed to the
          // {{view}} helper method.
          delete hash[prop];
        }
      }
    }
  
    if (fn) {
      itemHash.template = fn;
      delete options.fn;
    }
  
    var emptyViewClass;
    if (inverse && inverse !== Handlebars.VM.noop) {
      emptyViewClass = get(collectionPrototype, 'emptyViewClass');
      emptyViewClass = emptyViewClass.extend({
            template: inverse,
            tagName: itemHash.tagName
      });
    } else if (hash.emptyViewClass) {
      emptyViewClass = handlebarsGet(this, hash.emptyViewClass, options);
    }
    if (emptyViewClass) { hash.emptyView = emptyViewClass; }
  
    if(!hash.keyword){
      itemHash._context = Ember.computed.alias('content');
    }
  
    var viewOptions = Ember.Handlebars.ViewHelper.propertiesFromHTMLOptions({ data: data, hash: itemHash }, this);
    hash.itemViewClass = itemViewClass.extend(viewOptions);
  
    return Ember.Handlebars.helpers.view.call(this, collectionClass, options);
  });
  
  
  })();
  
  
  
  (function() {
  /*globals Handlebars */
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var handlebarsGet = Ember.Handlebars.get;
  
  /**
    `unbound` allows you to output a property without binding. *Important:* The
    output will not be updated if the property changes. Use with caution.
  
    ```handlebars
    <div>{{unbound somePropertyThatDoesntChange}}</div>
    ```
  
    `unbound` can also be used in conjunction with a bound helper to
    render it in its unbound form:
  
    ```handlebars
    <div>{{unbound helperName somePropertyThatDoesntChange}}</div>
    ```
  
    @method unbound
    @for Ember.Handlebars.helpers
    @param {String} property
    @return {String} HTML string
  */
  Ember.Handlebars.registerHelper('unbound', function(property, fn) {
    var options = arguments[arguments.length - 1], helper, context, out;
  
    if(arguments.length > 2) {
      // Unbound helper call.
      options.data.isUnbound = true;
      helper = Ember.Handlebars.helpers[arguments[0]] || Ember.Handlebars.helperMissing;
      out = helper.apply(this, Array.prototype.slice.call(arguments, 1));
      delete options.data.isUnbound;
      return out;
    }
  
    context = (fn.contexts && fn.contexts[0]) || this;
    return handlebarsGet(context, property, fn);
  });
  
  })();
  
  
  
  (function() {
  /*jshint debug:true*/
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var handlebarsGet = Ember.Handlebars.get, normalizePath = Ember.Handlebars.normalizePath;
  
  /**
    `log` allows you to output the value of a value in the current rendering
    context.
  
    ```handlebars
    {{log myVariable}}
    ```
  
    @method log
    @for Ember.Handlebars.helpers
    @param {String} property
  */
  Ember.Handlebars.registerHelper('log', function(property, options) {
    var context = (options.contexts && options.contexts[0]) || this,
        normalized = normalizePath(context, property, options.data),
        pathRoot = normalized.root,
        path = normalized.path,
        value = (path === 'this') ? pathRoot : handlebarsGet(pathRoot, path, options);
    Ember.Logger.log(value);
  });
  
  /**
    Execute the `debugger` statement in the current context.
  
    ```handlebars
    {{debugger}}
    ```
  
    @method debugger
    @for Ember.Handlebars.helpers
    @param {String} property
  */
  Ember.Handlebars.registerHelper('debugger', function() {
    debugger;
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var get = Ember.get, set = Ember.set;
  
  Ember.Handlebars.EachView = Ember.CollectionView.extend(Ember._Metamorph, {
    init: function() {
      var itemController = get(this, 'itemController');
      var binding;
  
      if (itemController) {
        var controller = Ember.ArrayController.create();
        set(controller, 'itemController', itemController);
        set(controller, 'container', get(this, 'controller.container'));
        set(controller, '_eachView', this);
        set(controller, 'target', get(this, 'controller'));
        set(controller, 'parentController', get(this, 'controller'));
  
        this.disableContentObservers(function() {
          set(this, 'content', controller);
          binding = new Ember.Binding('content', '_eachView.dataSource').oneWay();
          binding.connect(controller);
        });
  
        set(this, '_arrayController', controller);
      } else {
        this.disableContentObservers(function() {
          binding = new Ember.Binding('content', 'dataSource').oneWay();
          binding.connect(this);
        });
      }
  
      return this._super();
    },
  
    disableContentObservers: function(callback) {
      Ember.removeBeforeObserver(this, 'content', null, '_contentWillChange');
      Ember.removeObserver(this, 'content', null, '_contentDidChange');
  
      callback.call(this);
  
      Ember.addBeforeObserver(this, 'content', null, '_contentWillChange');
      Ember.addObserver(this, 'content', null, '_contentDidChange');
    },
  
    itemViewClass: Ember._MetamorphView,
    emptyViewClass: Ember._MetamorphView,
  
    createChildView: function(view, attrs) {
      view = this._super(view, attrs);
  
      // At the moment, if a container view subclass wants
      // to insert keywords, it is responsible for cloning
      // the keywords hash. This will be fixed momentarily.
      var keyword = get(this, 'keyword');
      var content = get(view, 'content');
  
      if (keyword) {
        var data = get(view, 'templateData');
  
        data = Ember.copy(data);
        data.keywords = view.cloneKeywords();
        set(view, 'templateData', data);
  
        // In this case, we do not bind, because the `content` of
        // a #each item cannot change.
        data.keywords[keyword] = content;
      }
  
      // If {{#each}} is looping over an array of controllers,
      // point each child view at their respective controller.
      if (content && get(content, 'isController')) {
        set(view, 'controller', content);
      }
  
      return view;
    },
  
    destroy: function() {
      if (!this._super()) { return; }
  
      var arrayController = get(this, '_arrayController');
  
      if (arrayController) {
        arrayController.destroy();
      }
  
      return this;
    }
  });
  
  var GroupedEach = Ember.Handlebars.GroupedEach = function(context, path, options) {
    var self = this,
        normalized = Ember.Handlebars.normalizePath(context, path, options.data);
  
    this.context = context;
    this.path = path;
    this.options = options;
    this.template = options.fn;
    this.containingView = options.data.view;
    this.normalizedRoot = normalized.root;
    this.normalizedPath = normalized.path;
    this.content = this.lookupContent();
  
    this.addContentObservers();
    this.addArrayObservers();
  
    this.containingView.on('willClearRender', function() {
      self.destroy();
    });
  };
  
  GroupedEach.prototype = {
    contentWillChange: function() {
      this.removeArrayObservers();
    },
  
    contentDidChange: function() {
      this.content = this.lookupContent();
      this.addArrayObservers();
      this.rerenderContainingView();
    },
  
    contentArrayWillChange: Ember.K,
  
    contentArrayDidChange: function() {
      this.rerenderContainingView();
    },
  
    lookupContent: function() {
      return Ember.Handlebars.get(this.normalizedRoot, this.normalizedPath, this.options);
    },
  
    addArrayObservers: function() {
      this.content.addArrayObserver(this, {
        willChange: 'contentArrayWillChange',
        didChange: 'contentArrayDidChange'
      });
    },
  
    removeArrayObservers: function() {
      this.content.removeArrayObserver(this, {
        willChange: 'contentArrayWillChange',
        didChange: 'contentArrayDidChange'
      });
    },
  
    addContentObservers: function() {
      Ember.addBeforeObserver(this.normalizedRoot, this.normalizedPath, this, this.contentWillChange);
      Ember.addObserver(this.normalizedRoot, this.normalizedPath, this, this.contentDidChange);
    },
  
    removeContentObservers: function() {
      Ember.removeBeforeObserver(this.normalizedRoot, this.normalizedPath, this.contentWillChange);
      Ember.removeObserver(this.normalizedRoot, this.normalizedPath, this.contentDidChange);
    },
  
    render: function() {
      var content = this.content,
          contentLength = get(content, 'length'),
          data = this.options.data,
          template = this.template;
  
      data.insideEach = true;
      for (var i = 0; i < contentLength; i++) {
        template(content.objectAt(i), { data: data });
      }
    },
  
    rerenderContainingView: function() {
      Ember.run.scheduleOnce('render', this.containingView, 'rerender');
    },
  
    destroy: function() {
      this.removeContentObservers();
      this.removeArrayObservers();
    }
  };
  
  /**
    The `{{#each}}` helper loops over elements in a collection, rendering its
    block once for each item. It is an extension of the base Handlebars `{{#each}}`
    helper:
  
    ```javascript
    Developers = [{name: 'Yehuda'},{name: 'Tom'}, {name: 'Paul'}];
    ```
  
    ```handlebars
    {{#each Developers}}
      {{name}}
    {{/each}}
    ```
  
    `{{each}}` supports an alternative syntax with element naming:
  
    ```handlebars
    {{#each person in Developers}}
      {{person.name}}
    {{/each}}
    ```
  
    When looping over objects that do not have properties, `{{this}}` can be used
    to render the object:
  
    ```javascript
    DeveloperNames = ['Yehuda', 'Tom', 'Paul']
    ```
  
    ```handlebars
    {{#each DeveloperNames}}
      {{this}}
    {{/each}}
    ```
    ### {{else}} condition
    `{{#each}}` can have a matching `{{else}}`. The contents of this block will render
    if the collection is empty.
  
    ```
    {{#each person in Developers}}
      {{person.name}}
    {{else}}
      <p>Sorry, nobody is available for this task.</p>
    {{/each}}
    ```
    ### Specifying a View class for items
    If you provide an `itemViewClass` option that references a view class
    with its own `template` you can omit the block.
  
    The following template:
  
    ```handlebars
    {{#view App.MyView }}
      {{each view.items itemViewClass="App.AnItemView"}}
    {{/view}}
    ```
  
    And application code
  
    ```javascript
    App = Ember.Application.create({
      MyView: Ember.View.extend({
        items: [
          Ember.Object.create({name: 'Dave'}),
          Ember.Object.create({name: 'Mary'}),
          Ember.Object.create({name: 'Sara'})
        ]
      })
    });
  
    App.AnItemView = Ember.View.extend({
      template: Ember.Handlebars.compile("Greetings {{name}}")
    });
    ```
  
    Will result in the HTML structure below
  
    ```html
    <div class="ember-view">
      <div class="ember-view">Greetings Dave</div>
      <div class="ember-view">Greetings Mary</div>
      <div class="ember-view">Greetings Sara</div>
    </div>
    ```
  
    ### Representing each item with a Controller.
    By default the controller lookup within an `{{#each}}` block will be
    the controller of the template where the `{{#each}}` was used. If each
    item needs to be presented by a custom controller you can provide a
    `itemController` option which references a controller by lookup name.
    Each item in the loop will be wrapped in an instance of this controller
    and the item itself will be set to the `content` property of that controller.
  
    This is useful in cases where properties of model objects need transformation
    or synthesis for display:
  
    ```javascript
    App.DeveloperController = Ember.ObjectController.extend({
      isAvailableForHire: function(){
        return !this.get('content.isEmployed') && this.get('content.isSeekingWork');
      }.property('isEmployed', 'isSeekingWork')
    })
    ```
  
    ```handlebars
    {{#each person in developers itemController="developer"}}
      {{person.name}} {{#if person.isAvailableForHire}}Hire me!{{/if}}
    {{/each}}
    ```
  
    Each itemController will receive a reference to the current controller as
    a `parentController` property.
  
    @method each
    @for Ember.Handlebars.helpers
    @param [name] {String} name for item (used with `in`)
    @param [path] {String} path
    @param [options] {Object} Handlebars key/value pairs of options
    @param [options.itemViewClass] {String} a path to a view class used for each item
    @param [options.itemController] {String} name of a controller to be created for each item
  */
  Ember.Handlebars.registerHelper('each', function(path, options) {
    if (arguments.length === 4) {
      Ember.assert("If you pass more than one argument to the each helper, it must be in the form #each foo in bar", arguments[1] === "in");
  
      var keywordName = arguments[0];
  
      options = arguments[3];
      path = arguments[2];
      if (path === '') { path = "this"; }
  
      options.hash.keyword = keywordName;
    }
  
    if (arguments.length === 1) {
      options = path;
      path = 'this';
    }
  
    options.hash.dataSourceBinding = path;
    // Set up emptyView as a metamorph with no tag
    //options.hash.emptyViewClass = Ember._MetamorphView;
  
    if (options.data.insideGroup && !options.hash.groupedRows && !options.hash.itemViewClass) {
      new Ember.Handlebars.GroupedEach(this, path, options).render();
    } else {
      return Ember.Handlebars.helpers.collection.call(this, 'Ember.Handlebars.EachView', options);
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  /**
    `template` allows you to render a template from inside another template.
    This allows you to re-use the same template in multiple places. For example:
  
    ```html
    <script type="text/x-handlebars" data-template-name="logged_in_user">
      {{#with loggedInUser}}
        Last Login: {{lastLogin}}
        User Info: {{template "user_info"}}
      {{/with}}
    </script>
    ```
  
    ```html
    <script type="text/x-handlebars" data-template-name="user_info">
      Name: <em>{{name}}</em>
      Karma: <em>{{karma}}</em>
    </script>
    ```
  
    ```handlebars
    {{#if isUser}}
      {{template "user_info"}}
    {{else}}
      {{template "unlogged_user_info"}}
    {{/if}}
    ```
  
    This helper looks for templates in the global `Ember.TEMPLATES` hash. If you
    add `<script>` tags to your page with the `data-template-name` attribute set,
    they will be compiled and placed in this hash automatically.
  
    You can also manually register templates by adding them to the hash:
  
    ```javascript
    Ember.TEMPLATES["my_cool_template"] = Ember.Handlebars.compile('<b>{{user}}</b>');
    ```
  
    @method template
    @for Ember.Handlebars.helpers
    @param {String} templateName the template to render
  */
  
  Ember.Handlebars.registerHelper('template', function(name, options) {
    var view = options.data.view,
        template = view.templateForName(name);
  
    Ember.assert("Unable to find template with name '"+name+"'.", !!template);
  
    template(this, { data: options.data });
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  /**
    `partial` renders a template directly using the current context.
    If needed the context can be set using the `{{#with foo}}` helper.
  
    ```html
    <script type="text/x-handlebars" data-template-name="header_bar">
      {{#with currentUser}}
        {{partial user_info}}
      {{/with}}
    </script>
    ```
  
    The `data-template-name` attribute of a partial template
    is prefixed with an underscore.
  
    ```html
    <script type="text/x-handlebars" data-template-name="_user_info">
      <span>Hello {{username}}!</span>
    </script>
    ```
  
    @method partial
    @for Ember.Handlebars.helpers
    @param {String} partialName the name of the template to render minus the leading underscore
  */
  
  Ember.Handlebars.registerHelper('partial', function(name, options) {
    var nameParts = name.split("/"),
        lastPart = nameParts[nameParts.length - 1];
  
    nameParts[nameParts.length - 1] = "_" + lastPart;
  
    var view = options.data.view,
        underscoredName = nameParts.join("/"),
        template = view.templateForName(underscoredName),
        deprecatedTemplate = !template && view.templateForName(name);
  
    Ember.deprecate("You tried to render the partial " + name + ", which should be at '" + underscoredName + "', but Ember found '" + name + "'. Please use a leading underscore in your partials", template);
    Ember.assert("Unable to find partial with name '"+name+"'.", template || deprecatedTemplate);
  
    template = template || deprecatedTemplate;
  
    template(this, { data: options.data });
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var get = Ember.get, set = Ember.set;
  
  /**
    When used in a Handlebars template that is assigned to an `Ember.View`
    instance's `layout` property Ember will render the layout template first,
    inserting the view's own rendered output at the `{{yield}}` location.
  
    An empty `<body>` and the following application code:
  
    ```javascript
    AView = Ember.View.extend({
      classNames: ['a-view-with-layout'],
      layout: Ember.Handlebars.compile('<div class="wrapper">{{yield}}</div>'),
      template: Ember.Handlebars.compile('<span>I am wrapped</span>')
    });
  
    aView = AView.create();
    aView.appendTo('body');
    ```
  
    Will result in the following HTML output:
  
    ```html
    <body>
      <div class='ember-view a-view-with-layout'>
        <div class="wrapper">
          <span>I am wrapped</span>
        </div>
      </div>
    </body>
    ```
  
    The `yield` helper cannot be used outside of a template assigned to an
    `Ember.View`'s `layout` property and will throw an error if attempted.
  
    ```javascript
    BView = Ember.View.extend({
      classNames: ['a-view-with-layout'],
      template: Ember.Handlebars.compile('{{yield}}')
    });
  
    bView = BView.create();
    bView.appendTo('body');
  
    // throws
    // Uncaught Error: assertion failed: You called yield in a template that was not a layout
    ```
  
    @method yield
    @for Ember.Handlebars.helpers
    @param {Hash} options
    @return {String} HTML string
  */
  Ember.Handlebars.registerHelper('yield', function(options) {
    var view = options.data.view, template;
  
    while (view && !get(view, 'layout')) {
      view = get(view, 'parentView');
    }
  
    Ember.assert("You called yield in a template that was not a layout", !!view);
  
    template = get(view, 'template');
  
    if (template) { template(this, options); }
  });
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var set = Ember.set, get = Ember.get;
  
  /**
    The `Ember.Checkbox` view class renders a checkbox
    [input](https://developer.mozilla.org/en/HTML/Element/Input) element. It
    allows for binding an Ember property (`checked`) to the status of the
    checkbox.
  
    Example:
  
    ```handlebars
    {{view Ember.Checkbox checkedBinding="receiveEmail"}}
    ```
  
    You can add a `label` tag yourself in the template where the `Ember.Checkbox`
    is being used.
  
    ```handlebars
    <label>
      {{view Ember.Checkbox classNames="applicaton-specific-checkbox"}}
      Some Title
    </label>
    ```
  
    The `checked` attribute of an `Ember.Checkbox` object should always be set
    through the Ember object or by interacting with its rendered element
    representation via the mouse, keyboard, or touch. Updating the value of the
    checkbox via jQuery will result in the checked value of the object and its
    element losing synchronization.
  
    ## Layout and LayoutName properties
  
    Because HTML `input` elements are self closing `layout` and `layoutName`
    properties will not be applied. See `Ember.View`'s layout section for more
    information.
  
    @class Checkbox
    @namespace Ember
    @extends Ember.View
  */
  Ember.Checkbox = Ember.View.extend({
    classNames: ['ember-checkbox'],
  
    tagName: 'input',
  
    attributeBindings: ['type', 'checked', 'disabled', 'tabindex', 'name'],
  
    type: "checkbox",
    checked: false,
    disabled: false,
  
    init: function() {
      this._super();
      this.on("change", this, this._updateElementValue);
    },
  
    _updateElementValue: function() {
      set(this, 'checked', this.$().prop('checked'));
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var get = Ember.get, set = Ember.set;
  
  /**
    Shared mixin used by `Ember.TextField` and `Ember.TextArea`.
  
    @class TextSupport
    @namespace Ember
    @extends Ember.Mixin
    @private
  */
  Ember.TextSupport = Ember.Mixin.create({
    value: "",
  
    attributeBindings: ['placeholder', 'disabled', 'maxlength', 'tabindex'],
    placeholder: null,
    disabled: false,
    maxlength: null,
  
    insertNewline: Ember.K,
    cancel: Ember.K,
  
    init: function() {
      this._super();
      this.on("focusOut", this, this._elementValueDidChange);
      this.on("change", this, this._elementValueDidChange);
      this.on("paste", this, this._elementValueDidChange);
      this.on("cut", this, this._elementValueDidChange);
      this.on("input", this, this._elementValueDidChange);
      this.on("keyUp", this, this.interpretKeyEvents);
    },
  
    interpretKeyEvents: function(event) {
      var map = Ember.TextSupport.KEY_EVENTS;
      var method = map[event.keyCode];
  
      this._elementValueDidChange();
      if (method) { return this[method](event); }
    },
  
    _elementValueDidChange: function() {
      set(this, 'value', this.$().val());
    }
  
  });
  
  Ember.TextSupport.KEY_EVENTS = {
    13: 'insertNewline',
    27: 'cancel'
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var get = Ember.get, set = Ember.set;
  
  /**
    The `Ember.TextField` view class renders a text
    [input](https://developer.mozilla.org/en/HTML/Element/Input) element. It
    allows for binding Ember properties to the text field contents (`value`),
    live-updating as the user inputs text.
  
    Example:
  
    ```handlebars
    {{view Ember.TextField valueBinding="firstName"}}
    ```
  
    ## Layout and LayoutName properties
  
    Because HTML `input` elements are self closing `layout` and `layoutName`
    properties will not be applied. See `Ember.View`'s layout section for more
    information.
  
    ## HTML Attributes
  
    By default `Ember.TextField` provides support for `type`, `value`, `size`,
    `pattern`, `placeholder`, `disabled`, `maxlength` and `tabindex` attributes
    on a text field. If you need to support more attributes have a look at the
    `attributeBindings` property in `Ember.View`'s HTML Attributes section.
  
    To globally add support for additional attributes you can reopen
    `Ember.TextField` or `Ember.TextSupport`.
  
    ```javascript
    Ember.TextSupport.reopen({
      attributeBindings: ["required"]
    })
    ```
  
    @class TextField
    @namespace Ember
    @extends Ember.View
    @uses Ember.TextSupport
  */
  Ember.TextField = Ember.View.extend(Ember.TextSupport,
    /** @scope Ember.TextField.prototype */ {
  
    classNames: ['ember-text-field'],
    tagName: "input",
    attributeBindings: ['type', 'value', 'size', 'pattern', 'name'],
  
    /**
      The `value` attribute of the input element. As the user inputs text, this
      property is updated live.
  
      @property value
      @type String
      @default ""
    */
    value: "",
  
    /**
      The `type` attribute of the input element.
  
      @property type
      @type String
      @default "text"
    */
    type: "text",
  
    /**
      The `size` of the text field in characters.
  
      @property size
      @type String
      @default null
    */
    size: null,
  
    /**
      The `pattern` the pattern attribute of input element.
  
      @property pattern
      @type String
      @default null
    */
    pattern: null,
  
    /**
      The action to be sent when the user presses the return key.
  
      This is similar to the `{{action}}` helper, but is fired when
      the user presses the return key when editing a text field, and sends
      the value of the field as the context.
  
      @property action
      @type String
      @default null
    */
    action: null,
  
    /**
      The event that should send the action.
  
      Options are:
  
      * `enter`: the user pressed enter
      * `keypress`: the user pressed a key
  
      @property onEvent
      @type String
      @default enter
    */
    onEvent: 'enter',
  
    /**
      Whether they `keyUp` event that triggers an `action` to be sent continues
      propagating to other views.
  
      By default, when the user presses the return key on their keyboard and
      the text field has an `action` set, the action will be sent to the view's
      controller and the key event will stop propagating.
  
      If you would like parent views to receive the `keyUp` event even after an
      action has been dispatched, set `bubbles` to true.
  
      @property bubbles
      @type Boolean
      @default false
    */
    bubbles: false,
  
    insertNewline: function(event) {
      sendAction('enter', this, event);
    },
  
    keyPress: function(event) {
      sendAction('keyPress', this, event);
    }
  });
  
  function sendAction(eventName, view, event) {
    var action = get(view, 'action'),
        on = get(view, 'onEvent');
  
    if (action && on === eventName) {
      var controller = get(view, 'controller'),
          value = get(view, 'value'),
          bubbles = get(view, 'bubbles');
  
      controller.send(action, value, view);
  
      if (!bubbles) {
        event.stopPropagation();
      }
    }
  }
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var get = Ember.get, set = Ember.set;
  
  /**
    @class Button
    @namespace Ember
    @extends Ember.View
    @uses Ember.TargetActionSupport
    @deprecated
  */
  Ember.Button = Ember.View.extend(Ember.TargetActionSupport, {
    classNames: ['ember-button'],
    classNameBindings: ['isActive'],
  
    tagName: 'button',
  
    propagateEvents: false,
  
    attributeBindings: ['type', 'disabled', 'href', 'tabindex'],
  
    /**
      @private
  
      Overrides `TargetActionSupport`'s `targetObject` computed
      property to use Handlebars-specific path resolution.
  
      @property targetObject
    */
    targetObject: Ember.computed(function() {
      var target = get(this, 'target'),
          root = get(this, 'context'),
          data = get(this, 'templateData');
  
      if (typeof target !== 'string') { return target; }
  
      return Ember.Handlebars.get(root, target, { data: data });
    }).property('target'),
  
    // Defaults to 'button' if tagName is 'input' or 'button'
    type: Ember.computed(function(key) {
      var tagName = this.tagName;
      if (tagName === 'input' || tagName === 'button') { return 'button'; }
    }),
  
    disabled: false,
  
    // Allow 'a' tags to act like buttons
    href: Ember.computed(function() {
      return this.tagName === 'a' ? '#' : null;
    }),
  
    mouseDown: function() {
      if (!get(this, 'disabled')) {
        set(this, 'isActive', true);
        this._mouseDown = true;
        this._mouseEntered = true;
      }
      return get(this, 'propagateEvents');
    },
  
    mouseLeave: function() {
      if (this._mouseDown) {
        set(this, 'isActive', false);
        this._mouseEntered = false;
      }
    },
  
    mouseEnter: function() {
      if (this._mouseDown) {
        set(this, 'isActive', true);
        this._mouseEntered = true;
      }
    },
  
    mouseUp: function(event) {
      if (get(this, 'isActive')) {
        // Actually invoke the button's target and action.
        // This method comes from the Ember.TargetActionSupport mixin.
        this.triggerAction();
        set(this, 'isActive', false);
      }
  
      this._mouseDown = false;
      this._mouseEntered = false;
      return get(this, 'propagateEvents');
    },
  
    keyDown: function(event) {
      // Handle space or enter
      if (event.keyCode === 13 || event.keyCode === 32) {
        this.mouseDown();
      }
    },
  
    keyUp: function(event) {
      // Handle space or enter
      if (event.keyCode === 13 || event.keyCode === 32) {
        this.mouseUp();
      }
    },
  
    // TODO: Handle proper touch behavior. Including should make inactive when
    // finger moves more than 20x outside of the edge of the button (vs mouse
    // which goes inactive as soon as mouse goes out of edges.)
  
    touchStart: function(touch) {
      return this.mouseDown(touch);
    },
  
    touchEnd: function(touch) {
      return this.mouseUp(touch);
    },
  
    init: function() {
      Ember.deprecate("Ember.Button is deprecated and will be removed from future releases. Consider using the `{{action}}` helper.");
      this._super();
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var get = Ember.get, set = Ember.set;
  
  /**
    The `Ember.TextArea` view class renders a
    [textarea](https://developer.mozilla.org/en/HTML/Element/textarea) element.
    It allows for binding Ember properties to the text area contents (`value`),
    live-updating as the user inputs text.
  
    ## Layout and LayoutName properties
  
    Because HTML `textarea` elements do not contain inner HTML the `layout` and
    `layoutName` properties will not be applied. See `Ember.View`'s layout
    section for more information.
  
    ## HTML Attributes
  
    By default `Ember.TextArea` provides support for `rows`, `cols`,
    `placeholder`, `disabled`, `maxlength` and `tabindex` attributes on a
    textarea. If you need to support  more attributes have a look at the
    `attributeBindings` property in `Ember.View`'s HTML Attributes section.
  
    To globally add support for additional attributes you can reopen
    `Ember.TextArea` or `Ember.TextSupport`.
  
    ```javascript
    Ember.TextSupport.reopen({
      attributeBindings: ["required"]
    })
    ```
  
    @class TextArea
    @namespace Ember
    @extends Ember.View
    @uses Ember.TextSupport
  */
  Ember.TextArea = Ember.View.extend(Ember.TextSupport, {
    classNames: ['ember-text-area'],
  
    tagName: "textarea",
    attributeBindings: ['rows', 'cols', 'name'],
    rows: null,
    cols: null,
  
    _updateElementValue: Ember.observer(function() {
      // We do this check so cursor position doesn't get affected in IE
      var value = get(this, 'value'),
          $el = this.$();
      if ($el && value !== $el.val()) {
        $el.val(value);
      }
    }, 'value'),
  
    init: function() {
      this._super();
      this.on("didInsertElement", this, this._updateElementValue);
    }
  
  });
  
  })();
  
  
  
  (function() {
  /*jshint eqeqeq:false */
  
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  var set = Ember.set,
      get = Ember.get,
      indexOf = Ember.EnumerableUtils.indexOf,
      indexesOf = Ember.EnumerableUtils.indexesOf,
      replace = Ember.EnumerableUtils.replace,
      isArray = Ember.isArray,
      precompileTemplate = Ember.Handlebars.compile;
  
  Ember.SelectOption = Ember.View.extend({
    tagName: 'option',
    attributeBindings: ['value', 'selected'],
  
    defaultTemplate: function(context, options) {
      options = { data: options.data, hash: {} };
      Ember.Handlebars.helpers.bind.call(context, "view.label", options);
    },
  
    init: function() {
      this.labelPathDidChange();
      this.valuePathDidChange();
  
      this._super();
    },
  
    selected: Ember.computed(function() {
      var content = get(this, 'content'),
          selection = get(this, 'parentView.selection');
      if (get(this, 'parentView.multiple')) {
        return selection && indexOf(selection, content.valueOf()) > -1;
      } else {
        // Primitives get passed through bindings as objects... since
        // `new Number(4) !== 4`, we use `==` below
        return content == selection;
      }
    }).property('content', 'parentView.selection'),
  
    labelPathDidChange: Ember.observer(function() {
      var labelPath = get(this, 'parentView.optionLabelPath');
  
      if (!labelPath) { return; }
  
      Ember.defineProperty(this, 'label', Ember.computed(function() {
        return get(this, labelPath);
      }).property(labelPath));
    }, 'parentView.optionLabelPath'),
  
    valuePathDidChange: Ember.observer(function() {
      var valuePath = get(this, 'parentView.optionValuePath');
  
      if (!valuePath) { return; }
  
      Ember.defineProperty(this, 'value', Ember.computed(function() {
        return get(this, valuePath);
      }).property(valuePath));
    }, 'parentView.optionValuePath')
  });
  
  /**
    The `Ember.Select` view class renders a
    [select](https://developer.mozilla.org/en/HTML/Element/select) HTML element,
    allowing the user to choose from a list of options.
  
    The text and `value` property of each `<option>` element within the
    `<select>` element are populated from the objects in the `Element.Select`'s
    `content` property. The underlying data object of the selected `<option>` is
    stored in the `Element.Select`'s `value` property.
  
    ### `content` as an array of Strings
  
    The simplest version of an `Ember.Select` takes an array of strings as its
    `content` property. The string will be used as both the `value` property and
    the inner text of each `<option>` element inside the rendered `<select>`.
  
    Example:
  
    ```javascript
    App.names = ["Yehuda", "Tom"];
    ```
  
    ```handlebars
    {{view Ember.Select contentBinding="App.names"}}
    ```
  
    Would result in the following HTML:
  
    ```html
    <select class="ember-select">
      <option value="Yehuda">Yehuda</option>
      <option value="Tom">Tom</option>
    </select>
    ```
  
    You can control which `<option>` is selected through the `Ember.Select`'s
    `value` property directly or as a binding:
  
    ```javascript
    App.names = Ember.Object.create({
      selected: 'Tom',
      content: ["Yehuda", "Tom"]
    });
    ```
  
    ```handlebars
    {{view Ember.Select
           contentBinding="App.names.content"
           valueBinding="App.names.selected"
    }}
    ```
  
    Would result in the following HTML with the `<option>` for 'Tom' selected:
  
    ```html
    <select class="ember-select">
      <option value="Yehuda">Yehuda</option>
      <option value="Tom" selected="selected">Tom</option>
    </select>
    ```
  
    A user interacting with the rendered `<select>` to choose "Yehuda" would
    update the value of `App.names.selected` to "Yehuda".
  
    ### `content` as an Array of Objects
  
    An `Ember.Select` can also take an array of JavaScript or Ember objects as
    its `content` property.
  
    When using objects you need to tell the `Ember.Select` which property should
    be accessed on each object to supply the `value` attribute of the `<option>`
    and which property should be used to supply the element text.
  
    The `optionValuePath` option is used to specify the path on each object to
    the desired property for the `value` attribute. The `optionLabelPath`
    specifies the path on each object to the desired property for the
    element's text. Both paths must reference each object itself as `content`:
  
    ```javascript
    App.programmers = [
      Ember.Object.create({firstName: "Yehuda", id: 1}),
      Ember.Object.create({firstName: "Tom",    id: 2})
    ];
    ```
  
    ```handlebars
    {{view Ember.Select
           contentBinding="App.programmers"
           optionValuePath="content.id"
           optionLabelPath="content.firstName"}}
    ```
  
    Would result in the following HTML:
  
    ```html
    <select class="ember-select">
      <option value="1">Yehuda</option>
      <option value="2">Tom</option>
    </select>
    ```
  
    The `value` attribute of the selected `<option>` within an `Ember.Select`
    can be bound to a property on another object by providing a
    `valueBinding` option:
  
    ```javascript
    App.programmers = [
      Ember.Object.create({firstName: "Yehuda", id: 1}),
      Ember.Object.create({firstName: "Tom",    id: 2})
    ];
  
    App.currentProgrammer = Ember.Object.create({
      id: 2
    });
    ```
  
    ```handlebars
    {{view Ember.Select
           contentBinding="App.programmers"
           optionValuePath="content.id"
           optionLabelPath="content.firstName"
           valueBinding="App.currentProgrammer.id"}}
    ```
  
    Would result in the following HTML with a selected option:
  
    ```html
    <select class="ember-select">
      <option value="1">Yehuda</option>
      <option value="2" selected="selected">Tom</option>
    </select>
    ```
  
    Interacting with the rendered element by selecting the first option
    ('Yehuda') will update the `id` value of `App.currentProgrammer`
    to match the `value` property of the newly selected `<option>`.
  
    Alternatively, you can control selection through the underlying objects
    used to render each object providing a `selectionBinding`. When the selected
    `<option>` is changed, the property path provided to `selectionBinding`
    will be updated to match the content object of the rendered `<option>`
    element:
  
    ```javascript
    App.controller = Ember.Object.create({
      selectedPerson: null,
      content: [
        Ember.Object.create({firstName: "Yehuda", id: 1}),
        Ember.Object.create({firstName: "Tom",    id: 2})
      ]
    });
    ```
  
    ```handlebars
    {{view Ember.Select
           contentBinding="App.controller.content"
           optionValuePath="content.id"
           optionLabelPath="content.firstName"
           selectionBinding="App.controller.selectedPerson"}}
    ```
  
    Would result in the following HTML with a selected option:
  
    ```html
    <select class="ember-select">
      <option value="1">Yehuda</option>
      <option value="2" selected="selected">Tom</option>
    </select>
    ```
  
    Interacting with the rendered element by selecting the first option
    ('Yehuda') will update the `selectedPerson` value of `App.controller`
    to match the content object of the newly selected `<option>`. In this
    case it is the first object in the `App.controller.content`
  
    ### Supplying a Prompt
  
    A `null` value for the `Ember.Select`'s `value` or `selection` property
    results in there being no `<option>` with a `selected` attribute:
  
    ```javascript
    App.controller = Ember.Object.create({
      selected: null,
      content: [
        "Yehuda",
        "Tom"
      ]
    });
    ```
  
    ``` handlebars
    {{view Ember.Select
           contentBinding="App.controller.content"
           valueBinding="App.controller.selected"
    }}
    ```
  
    Would result in the following HTML:
  
    ```html
    <select class="ember-select">
      <option value="Yehuda">Yehuda</option>
      <option value="Tom">Tom</option>
    </select>
    ```
  
    Although `App.controller.selected` is `null` and no `<option>`
    has a `selected` attribute the rendered HTML will display the
    first item as though it were selected. You can supply a string
    value for the `Ember.Select` to display when there is no selection
    with the `prompt` option:
  
    ```javascript
    App.controller = Ember.Object.create({
      selected: null,
      content: [
        "Yehuda",
        "Tom"
      ]
    });
    ```
  
    ```handlebars
    {{view Ember.Select
           contentBinding="App.controller.content"
           valueBinding="App.controller.selected"
           prompt="Please select a name"
    }}
    ```
  
    Would result in the following HTML:
  
    ```html
    <select class="ember-select">
      <option>Please select a name</option>
      <option value="Yehuda">Yehuda</option>
      <option value="Tom">Tom</option>
    </select>
    ```
  
    @class Select
    @namespace Ember
    @extends Ember.View
  */
  Ember.Select = Ember.View.extend(
    /** @scope Ember.Select.prototype */ {
  
    tagName: 'select',
    classNames: ['ember-select'],
    defaultTemplate: Ember.Handlebars.template(function anonymous(Handlebars,depth0,helpers,partials,data) {
  this.compilerInfo = [3,'>= 1.0.0-rc.4'];
  helpers = helpers || Ember.Handlebars.helpers; data = data || {};
    var buffer = '', stack1, hashTypes, hashContexts, escapeExpression=this.escapeExpression, self=this;
  
  function program1(depth0,data) {
  
    var buffer = '', hashTypes, hashContexts;
    data.buffer.push("<option value=\"\">");
    hashTypes = {};
    hashContexts = {};
    data.buffer.push(escapeExpression(helpers._triageMustache.call(depth0, "view.prompt", {hash:{},contexts:[depth0],types:["ID"],hashContexts:hashContexts,hashTypes:hashTypes,data:data})));
    data.buffer.push("</option>");
    return buffer;
    }
  
  function program3(depth0,data) {
  
    var hashContexts, hashTypes;
    hashContexts = {'contentBinding': depth0};
    hashTypes = {'contentBinding': "STRING"};
    data.buffer.push(escapeExpression(helpers.view.call(depth0, "view.optionView", {hash:{
      'contentBinding': ("this")
    },contexts:[depth0],types:["ID"],hashContexts:hashContexts,hashTypes:hashTypes,data:data})));
    }
  
    hashTypes = {};
    hashContexts = {};
    stack1 = helpers['if'].call(depth0, "view.prompt", {hash:{},inverse:self.noop,fn:self.program(1, program1, data),contexts:[depth0],types:["ID"],hashContexts:hashContexts,hashTypes:hashTypes,data:data});
    if(stack1 || stack1 === 0) { data.buffer.push(stack1); }
    hashTypes = {};
    hashContexts = {};
    stack1 = helpers.each.call(depth0, "view.content", {hash:{},inverse:self.noop,fn:self.program(3, program3, data),contexts:[depth0],types:["ID"],hashContexts:hashContexts,hashTypes:hashTypes,data:data});
    if(stack1 || stack1 === 0) { data.buffer.push(stack1); }
    return buffer;
  
  }),
    attributeBindings: ['multiple', 'disabled', 'tabindex', 'name'],
  
    /**
      The `multiple` attribute of the select element. Indicates whether multiple
      options can be selected.
  
      @property multiple
      @type Boolean
      @default false
    */
    multiple: false,
  
    disabled: false,
  
    /**
      The list of options.
  
      If `optionLabelPath` and `optionValuePath` are not overridden, this should
      be a list of strings, which will serve simultaneously as labels and values.
  
      Otherwise, this should be a list of objects. For instance:
  
      ```javascript
      Ember.Select.create({
        content: Ember.A([
            { id: 1, firstName: 'Yehuda' },
            { id: 2, firstName: 'Tom' }
          ]),
        optionLabelPath: 'content.firstName',
        optionValuePath: 'content.id'
      });
      ```
  
      @property content
      @type Array
      @default null
    */
    content: null,
  
    /**
      When `multiple` is `false`, the element of `content` that is currently
      selected, if any.
  
      When `multiple` is `true`, an array of such elements.
  
      @property selection
      @type Object or Array
      @default null
    */
    selection: null,
  
    /**
      In single selection mode (when `multiple` is `false`), value can be used to
      get the current selection's value or set the selection by it's value.
  
      It is not currently supported in multiple selection mode.
  
      @property value
      @type String
      @default null
    */
    value: Ember.computed(function(key, value) {
      if (arguments.length === 2) { return value; }
      var valuePath = get(this, 'optionValuePath').replace(/^content\.?/, '');
      return valuePath ? get(this, 'selection.' + valuePath) : get(this, 'selection');
    }).property('selection'),
  
    /**
      If given, a top-most dummy option will be rendered to serve as a user
      prompt.
  
      @property prompt
      @type String
      @default null
    */
    prompt: null,
  
    /**
      The path of the option labels. See `content`.
  
      @property optionLabelPath
      @type String
      @default 'content'
    */
    optionLabelPath: 'content',
  
    /**
      The path of the option values. See `content`.
  
      @property optionValuePath
      @type String
      @default 'content'
    */
    optionValuePath: 'content',
  
    /**
      The view class for option.
  
      @property optionView
      @type Ember.View
      @default Ember.SelectOption
    */
    optionView: Ember.SelectOption,
  
    _change: function() {
      if (get(this, 'multiple')) {
        this._changeMultiple();
      } else {
        this._changeSingle();
      }
    },
  
    selectionDidChange: Ember.observer(function() {
      var selection = get(this, 'selection');
      if (get(this, 'multiple')) {
        if (!isArray(selection)) {
          set(this, 'selection', Ember.A([selection]));
          return;
        }
        this._selectionDidChangeMultiple();
      } else {
        this._selectionDidChangeSingle();
      }
    }, 'selection.@each'),
  
    valueDidChange: Ember.observer(function() {
      var content = get(this, 'content'),
          value = get(this, 'value'),
          valuePath = get(this, 'optionValuePath').replace(/^content\.?/, ''),
          selectedValue = (valuePath ? get(this, 'selection.' + valuePath) : get(this, 'selection')),
          selection;
  
      if (value !== selectedValue) {
        selection = content ? content.find(function(obj) {
          return value === (valuePath ? get(obj, valuePath) : obj);
        }) : null;
  
        this.set('selection', selection);
      }
    }, 'value'),
  
  
    _triggerChange: function() {
      var selection = get(this, 'selection');
      var value = get(this, 'value');
  
      if (!Ember.isNone(selection)) { this.selectionDidChange(); }
      if (!Ember.isNone(value)) { this.valueDidChange(); }
  
      this._change();
    },
  
    _changeSingle: function() {
      var selectedIndex = this.$()[0].selectedIndex,
          content = get(this, 'content'),
          prompt = get(this, 'prompt');
  
      if (!content || !get(content, 'length')) { return; }
      if (prompt && selectedIndex === 0) { set(this, 'selection', null); return; }
  
      if (prompt) { selectedIndex -= 1; }
      set(this, 'selection', content.objectAt(selectedIndex));
    },
  
  
    _changeMultiple: function() {
      var options = this.$('option:selected'),
          prompt = get(this, 'prompt'),
          offset = prompt ? 1 : 0,
          content = get(this, 'content'),
          selection = get(this, 'selection');
  
      if (!content){ return; }
      if (options) {
        var selectedIndexes = options.map(function(){
          return this.index - offset;
        }).toArray();
        var newSelection = content.objectsAt(selectedIndexes);
  
        if (isArray(selection)) {
          replace(selection, 0, get(selection, 'length'), newSelection);
        } else {
          set(this, 'selection', newSelection);
        }
      }
    },
  
    _selectionDidChangeSingle: function() {
      var el = this.get('element');
      if (!el) { return; }
  
      var content = get(this, 'content'),
          selection = get(this, 'selection'),
          selectionIndex = content ? indexOf(content, selection) : -1,
          prompt = get(this, 'prompt');
  
      if (prompt) { selectionIndex += 1; }
      if (el) { el.selectedIndex = selectionIndex; }
    },
  
    _selectionDidChangeMultiple: function() {
      var content = get(this, 'content'),
          selection = get(this, 'selection'),
          selectedIndexes = content ? indexesOf(content, selection) : [-1],
          prompt = get(this, 'prompt'),
          offset = prompt ? 1 : 0,
          options = this.$('option'),
          adjusted;
  
      if (options) {
        options.each(function() {
          adjusted = this.index > -1 ? this.index - offset : -1;
          this.selected = indexOf(selectedIndexes, adjusted) > -1;
        });
      }
    },
  
    init: function() {
      this._super();
      this.on("didInsertElement", this, this._triggerChange);
      this.on("change", this, this._change);
    }
  });
  
  })();
  
  
  
  (function() {
  function normalizeHash(hash, hashTypes) {
    for (var prop in hash) {
      if (hashTypes[prop] === 'ID') {
        hash[prop + 'Binding'] = hash[prop];
        delete hash[prop];
      }
    }
  }
  
  /**
   * `{{input}}` inserts a new instance of either Ember.TextField or
   * Ember.Checkbox, depending on the `type` option passed in. If no `type`
   * is supplied it defaults to Ember.TextField.
   *
   * @method input
   * @for Ember.Handlebars.helpers
   * @param {Hash} options
   */
  Ember.Handlebars.registerHelper('input', function(options) {
    Ember.assert('You can only pass attributes to the `input` helper, not arguments', arguments.length < 2);
  
    var hash = options.hash,
        types = options.hashTypes,
        inputType = hash.type,
        onEvent = hash.on;
  
    delete hash.type;
    delete hash.on;
  
    normalizeHash(hash, types);
  
    if (inputType === 'checkbox') {
      return Ember.Handlebars.helpers.view.call(this, Ember.Checkbox, options);
    } else {
      hash.type = inputType;
      hash.onEvent = onEvent || 'enter';
      return Ember.Handlebars.helpers.view.call(this, Ember.TextField, options);
    }
  });
  
  /**
   * `{{textarea}}` inserts a new instance of Ember.TextArea into the template
   * passing its options to `Ember.TextArea`'s `create` method.
   *
   * @method textarea
   * @for Ember.Handlebars.helpers
   * @param {Hash} options
   */
  Ember.Handlebars.registerHelper('textarea', function(options) {
    Ember.assert('You can only pass attributes to the `textarea` helper, not arguments', arguments.length < 2);
  
    var hash = options.hash,
        types = options.hashTypes;
  
    normalizeHash(hash, types);
    return Ember.Handlebars.helpers.view.call(this, Ember.TextArea, options);
  });
  
  })();
  
  
  
  (function() {
  /*globals Handlebars */
  /**
  @module ember
  @submodule ember-handlebars
  */
  
  /**
    @private
  
    Find templates stored in the head tag as script tags and make them available
    to `Ember.CoreView` in the global `Ember.TEMPLATES` object. This will be run
    as as jQuery DOM-ready callback.
  
    Script tags with `text/x-handlebars` will be compiled
    with Ember's Handlebars and are suitable for use as a view's template.
    Those with type `text/x-raw-handlebars` will be compiled with regular
    Handlebars and are suitable for use in views' computed properties.
  
    @method bootstrap
    @for Ember.Handlebars
    @static
    @param ctx
  */
  Ember.Handlebars.bootstrap = function(ctx) {
    var selectors = 'script[type="text/x-handlebars"], script[type="text/x-raw-handlebars"]';
  
    Ember.$(selectors, ctx)
      .each(function() {
      // Get a reference to the script tag
      var script = Ember.$(this);
  
      var compile = (script.attr('type') === 'text/x-raw-handlebars') ?
                    Ember.$.proxy(Handlebars.compile, Handlebars) :
                    Ember.$.proxy(Ember.Handlebars.compile, Ember.Handlebars),
        // Get the name of the script, used by Ember.View's templateName property.
        // First look for data-template-name attribute, then fall back to its
        // id if no name is found.
        templateName = script.attr('data-template-name') || script.attr('id') || 'application',
        template = compile(script.html());
  
      // For templates which have a name, we save them and then remove them from the DOM
      Ember.TEMPLATES[templateName] = template;
  
      // Remove script tag from DOM
      script.remove();
    });
  };
  
  function bootstrap() {
    Ember.Handlebars.bootstrap( Ember.$(document) );
  }
  
  function registerComponents(container) {
    var templates = Ember.TEMPLATES, match;
    if (!templates) { return; }
  
    for (var prop in templates) {
      if (match = prop.match(/^components\/(.*)$/)) {
        registerComponent(container, match[1]);
      }
    }
  }
  
  function registerComponent(container, name) {
    Ember.assert("You provided a template named 'components/" + name + "', but custom components must include a '-'", name.match(/-/));
  
    var className = name.replace(/-/g, '_');
    var Component = container.lookupFactory('component:' + className) || container.lookupFactory('component:' + name);
    var View = Component || Ember.Component.extend();
  
    View.reopen({
      layoutName: 'components/' + name
    });
  
    Ember.Handlebars.helper(name, View);
  }
  
  /*
    We tie this to application.load to ensure that we've at least
    attempted to bootstrap at the point that the application is loaded.
  
    We also tie this to document ready since we're guaranteed that all
    the inline templates are present at this point.
  
    There's no harm to running this twice, since we remove the templates
    from the DOM after processing.
  */
  
  Ember.onLoad('Ember.Application', function(Application) {
    if (Application.initializer) {
      Application.initializer({
        name: 'domTemplates',
        initialize: bootstrap
      });
  
      Application.initializer({
        name: 'registerComponents',
        after: 'domTemplates',
        initialize: registerComponents
      });
    } else {
      // for ember-old-router
      Ember.onLoad('application', bootstrap);
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  Ember Handlebars
  
  @module ember
  @submodule ember-handlebars
  @requires ember-views
  */
  
  Ember.runLoadHooks('Ember.Handlebars', Ember.Handlebars);
  
  })();
  
  (function() {
  define("route-recognizer",
    [],
    function() {
      "use strict";
      var specials = [
        '/', '.', '*', '+', '?', '|',
        '(', ')', '[', ']', '{', '}', '\\'
      ];
  
      var escapeRegex = new RegExp('(\\' + specials.join('|\\') + ')', 'g');
  
      // A Segment represents a segment in the original route description.
      // Each Segment type provides an `eachChar` and `regex` method.
      //
      // The `eachChar` method invokes the callback with one or more character
      // specifications. A character specification consumes one or more input
      // characters.
      //
      // The `regex` method returns a regex fragment for the segment. If the
      // segment is a dynamic of star segment, the regex fragment also includes
      // a capture.
      //
      // A character specification contains:
      //
      // * `validChars`: a String with a list of all valid characters, or
      // * `invalidChars`: a String with a list of all invalid characters
      // * `repeat`: true if the character specification can repeat
  
      function StaticSegment(string) { this.string = string; }
      StaticSegment.prototype = {
        eachChar: function(callback) {
          var string = this.string, char;
  
          for (var i=0, l=string.length; i<l; i++) {
            char = string.charAt(i);
            callback({ validChars: char });
          }
        },
  
        regex: function() {
          return this.string.replace(escapeRegex, '\\$1');
        },
  
        generate: function() {
          return this.string;
        }
      };
  
      function DynamicSegment(name) { this.name = name; }
      DynamicSegment.prototype = {
        eachChar: function(callback) {
          callback({ invalidChars: "/", repeat: true });
        },
  
        regex: function() {
          return "([^/]+)";
        },
  
        generate: function(params) {
          return params[this.name];
        }
      };
  
      function StarSegment(name) { this.name = name; }
      StarSegment.prototype = {
        eachChar: function(callback) {
          callback({ invalidChars: "", repeat: true });
        },
  
        regex: function() {
          return "(.+)";
        },
  
        generate: function(params) {
          return params[this.name];
        }
      };
  
      function EpsilonSegment() {}
      EpsilonSegment.prototype = {
        eachChar: function() {},
        regex: function() { return ""; },
        generate: function() { return ""; }
      };
  
      function parse(route, names, types) {
        // normalize route as not starting with a "/". Recognition will
        // also normalize.
        if (route.charAt(0) === "/") { route = route.substr(1); }
  
        var segments = route.split("/"), results = [];
  
        for (var i=0, l=segments.length; i<l; i++) {
          var segment = segments[i], match;
  
          if (match = segment.match(/^:([^\/]+)$/)) {
            results.push(new DynamicSegment(match[1]));
            names.push(match[1]);
            types.dynamics++;
          } else if (match = segment.match(/^\*([^\/]+)$/)) {
            results.push(new StarSegment(match[1]));
            names.push(match[1]);
            types.stars++;
          } else if(segment === "") {
            results.push(new EpsilonSegment());
          } else {
            results.push(new StaticSegment(segment));
            types.statics++;
          }
        }
  
        return results;
      }
  
      // A State has a character specification and (`charSpec`) and a list of possible
      // subsequent states (`nextStates`).
      //
      // If a State is an accepting state, it will also have several additional
      // properties:
      //
      // * `regex`: A regular expression that is used to extract parameters from paths
      //   that reached this accepting state.
      // * `handlers`: Information on how to convert the list of captures into calls
      //   to registered handlers with the specified parameters
      // * `types`: How many static, dynamic or star segments in this route. Used to
      //   decide which route to use if multiple registered routes match a path.
      //
      // Currently, State is implemented naively by looping over `nextStates` and
      // comparing a character specification against a character. A more efficient
      // implementation would use a hash of keys pointing at one or more next states.
  
      function State(charSpec) {
        this.charSpec = charSpec;
        this.nextStates = [];
      }
  
      State.prototype = {
        get: function(charSpec) {
          var nextStates = this.nextStates;
  
          for (var i=0, l=nextStates.length; i<l; i++) {
            var child = nextStates[i];
  
            var isEqual = child.charSpec.validChars === charSpec.validChars;
            isEqual = isEqual && child.charSpec.invalidChars === charSpec.invalidChars;
  
            if (isEqual) { return child; }
          }
        },
  
        put: function(charSpec) {
          var state;
  
          // If the character specification already exists in a child of the current
          // state, just return that state.
          if (state = this.get(charSpec)) { return state; }
  
          // Make a new state for the character spec
          state = new State(charSpec);
  
          // Insert the new state as a child of the current state
          this.nextStates.push(state);
  
          // If this character specification repeats, insert the new state as a child
          // of itself. Note that this will not trigger an infinite loop because each
          // transition during recognition consumes a character.
          if (charSpec.repeat) {
            state.nextStates.push(state);
          }
  
          // Return the new state
          return state;
        },
  
        // Find a list of child states matching the next character
        match: function(char) {
          // DEBUG "Processing `" + char + "`:"
          var nextStates = this.nextStates,
              child, charSpec, chars;
  
          // DEBUG "  " + debugState(this)
          var returned = [];
  
          for (var i=0, l=nextStates.length; i<l; i++) {
            child = nextStates[i];
  
            charSpec = child.charSpec;
  
            if (typeof (chars = charSpec.validChars) !== 'undefined') {
              if (chars.indexOf(char) !== -1) { returned.push(child); }
            } else if (typeof (chars = charSpec.invalidChars) !== 'undefined') {
              if (chars.indexOf(char) === -1) { returned.push(child); }
            }
          }
  
          return returned;
        }
  
        /** IF DEBUG
        , debug: function() {
          var charSpec = this.charSpec,
              debug = "[",
              chars = charSpec.validChars || charSpec.invalidChars;
  
          if (charSpec.invalidChars) { debug += "^"; }
          debug += chars;
          debug += "]";
  
          if (charSpec.repeat) { debug += "+"; }
  
          return debug;
        }
        END IF **/
      };
  
      /** IF DEBUG
      function debug(log) {
        console.log(log);
      }
  
      function debugState(state) {
        return state.nextStates.map(function(n) {
          if (n.nextStates.length === 0) { return "( " + n.debug() + " [accepting] )"; }
          return "( " + n.debug() + " <then> " + n.nextStates.map(function(s) { return s.debug() }).join(" or ") + " )";
        }).join(", ")
      }
      END IF **/
  
      // This is a somewhat naive strategy, but should work in a lot of cases
      // A better strategy would properly resolve /posts/:id/new and /posts/edit/:id
      function sortSolutions(states) {
        return states.sort(function(a, b) {
          if (a.types.stars !== b.types.stars) { return a.types.stars - b.types.stars; }
          if (a.types.dynamics !== b.types.dynamics) { return a.types.dynamics - b.types.dynamics; }
          if (a.types.statics !== b.types.statics) { return a.types.statics - b.types.statics; }
  
          return 0;
        });
      }
  
      function recognizeChar(states, char) {
        var nextStates = [];
  
        for (var i=0, l=states.length; i<l; i++) {
          var state = states[i];
  
          nextStates = nextStates.concat(state.match(char));
        }
  
        return nextStates;
      }
  
      function findHandler(state, path) {
        var handlers = state.handlers, regex = state.regex;
        var captures = path.match(regex), currentCapture = 1;
        var result = [];
  
        for (var i=0, l=handlers.length; i<l; i++) {
          var handler = handlers[i], names = handler.names, params = {};
  
          for (var j=0, m=names.length; j<m; j++) {
            params[names[j]] = captures[currentCapture++];
          }
  
          result.push({ handler: handler.handler, params: params, isDynamic: !!names.length });
        }
  
        return result;
      }
  
      function addSegment(currentState, segment) {
        segment.eachChar(function(char) {
          var state;
  
          currentState = currentState.put(char);
        });
  
        return currentState;
      }
  
      // The main interface
  
      var RouteRecognizer = function() {
        this.rootState = new State();
        this.names = {};
      };
  
  
      RouteRecognizer.prototype = {
        add: function(routes, options) {
          var currentState = this.rootState, regex = "^",
              types = { statics: 0, dynamics: 0, stars: 0 },
              handlers = [], allSegments = [], name;
  
          var isEmpty = true;
  
          for (var i=0, l=routes.length; i<l; i++) {
            var route = routes[i], names = [];
  
            var segments = parse(route.path, names, types);
  
            allSegments = allSegments.concat(segments);
  
            for (var j=0, m=segments.length; j<m; j++) {
              var segment = segments[j];
  
              if (segment instanceof EpsilonSegment) { continue; }
  
              isEmpty = false;
  
              // Add a "/" for the new segment
              currentState = currentState.put({ validChars: "/" });
              regex += "/";
  
              // Add a representation of the segment to the NFA and regex
              currentState = addSegment(currentState, segment);
              regex += segment.regex();
            }
  
            handlers.push({ handler: route.handler, names: names });
          }
  
          if (isEmpty) {
            currentState = currentState.put({ validChars: "/" });
            regex += "/";
          }
  
          currentState.handlers = handlers;
          currentState.regex = new RegExp(regex + "$");
          currentState.types = types;
  
          if (name = options && options.as) {
            this.names[name] = {
              segments: allSegments,
              handlers: handlers
            };
          }
        },
  
        handlersFor: function(name) {
          var route = this.names[name], result = [];
          if (!route) { throw new Error("There is no route named " + name); }
  
          for (var i=0, l=route.handlers.length; i<l; i++) {
            result.push(route.handlers[i]);
          }
  
          return result;
        },
  
        hasRoute: function(name) {
          return !!this.names[name];
        },
  
        generate: function(name, params) {
          var route = this.names[name], output = "";
          if (!route) { throw new Error("There is no route named " + name); }
  
          var segments = route.segments;
  
          for (var i=0, l=segments.length; i<l; i++) {
            var segment = segments[i];
  
            if (segment instanceof EpsilonSegment) { continue; }
  
            output += "/";
            output += segment.generate(params);
          }
  
          if (output.charAt(0) !== '/') { output = '/' + output; }
  
          return output;
        },
  
        recognize: function(path) {
          var states = [ this.rootState ],
              pathLen, i, l;
  
          // DEBUG GROUP path
  
          if (path.charAt(0) !== "/") { path = "/" + path; }
  
          pathLen = path.length;
          if (pathLen > 1 && path.charAt(pathLen - 1) === "/") {
            path = path.substr(0, pathLen - 1);
          }
  
          for (i=0, l=path.length; i<l; i++) {
            states = recognizeChar(states, path.charAt(i));
            if (!states.length) { break; }
          }
  
          // END DEBUG GROUP
  
          var solutions = [];
          for (i=0, l=states.length; i<l; i++) {
            if (states[i].handlers) { solutions.push(states[i]); }
          }
  
          states = sortSolutions(solutions);
  
          var state = solutions[0];
  
          if (state && state.handlers) {
            return findHandler(state, path);
          }
        }
      };
  
      function Target(path, matcher, delegate) {
        this.path = path;
        this.matcher = matcher;
        this.delegate = delegate;
      }
  
      Target.prototype = {
        to: function(target, callback) {
          var delegate = this.delegate;
  
          if (delegate && delegate.willAddRoute) {
            target = delegate.willAddRoute(this.matcher.target, target);
          }
  
          this.matcher.add(this.path, target);
  
          if (callback) {
            if (callback.length === 0) { throw new Error("You must have an argument in the function passed to `to`"); }
            this.matcher.addChild(this.path, target, callback, this.delegate);
          }
        }
      };
  
      function Matcher(target) {
        this.routes = {};
        this.children = {};
        this.target = target;
      }
  
      Matcher.prototype = {
        add: function(path, handler) {
          this.routes[path] = handler;
        },
  
        addChild: function(path, target, callback, delegate) {
          var matcher = new Matcher(target);
          this.children[path] = matcher;
  
          var match = generateMatch(path, matcher, delegate);
  
          if (delegate && delegate.contextEntered) {
            delegate.contextEntered(target, match);
          }
  
          callback(match);
        }
      };
  
      function generateMatch(startingPath, matcher, delegate) {
        return function(path, nestedCallback) {
          var fullPath = startingPath + path;
  
          if (nestedCallback) {
            nestedCallback(generateMatch(fullPath, matcher, delegate));
          } else {
            return new Target(startingPath + path, matcher, delegate);
          }
        };
      }
  
      function addRoute(routeArray, path, handler) {
        var len = 0;
        for (var i=0, l=routeArray.length; i<l; i++) {
          len += routeArray[i].path.length;
        }
  
        path = path.substr(len);
        routeArray.push({ path: path, handler: handler });
      }
  
      function eachRoute(baseRoute, matcher, callback, binding) {
        var routes = matcher.routes;
  
        for (var path in routes) {
          if (routes.hasOwnProperty(path)) {
            var routeArray = baseRoute.slice();
            addRoute(routeArray, path, routes[path]);
  
            if (matcher.children[path]) {
              eachRoute(routeArray, matcher.children[path], callback, binding);
            } else {
              callback.call(binding, routeArray);
            }
          }
        }
      }
  
      RouteRecognizer.prototype.map = function(callback, addRouteCallback) {
        var matcher = new Matcher();
  
        callback(generateMatch("", matcher, this.delegate));
  
        eachRoute([], matcher, function(route) {
          if (addRouteCallback) { addRouteCallback(this, route); }
          else { this.add(route); }
        }, this);
      };
      return RouteRecognizer;
    });
  
  })();
  
  
  
  (function() {
  define("router",
    ["route-recognizer", "rsvp"],
    function(RouteRecognizer, RSVP) {
      "use strict";
      /**
        @private
  
        This file references several internal structures:
  
        ## `RecognizedHandler`
  
        * `{String} handler`: A handler name
        * `{Object} params`: A hash of recognized parameters
  
        ## `HandlerInfo`
  
        * `{Boolean} isDynamic`: whether a handler has any dynamic segments
        * `{String} name`: the name of a handler
        * `{Object} handler`: a handler object
        * `{Object} context`: the active context for the handler
      */
  
  
      var slice = Array.prototype.slice;
  
  
  
      /**
        @private
  
        A Transition is a thennable (a promise-like object) that represents
        an attempt to transition to another route. It can be aborted, either
        explicitly via `abort` or by attempting another transition while a
        previous one is still underway. An aborted transition can also
        be `retry()`d later.
       */
  
      function Transition(router, promise) {
        this.router = router;
        this.promise = promise;
        this.data = {};
        this.resolvedModels = {};
        this.providedModels = {};
        this.providedModelsArray = [];
        this.sequence = ++Transition.currentSequence;
        this.params = {};
      }
  
      Transition.currentSequence = 0;
  
      Transition.prototype = {
        targetName: null,
        urlMethod: 'update',
        providedModels: null,
        resolvedModels: null,
        params: null,
  
        /**
          The Transition's internal promise. Calling `.then` on this property
          is that same as calling `.then` on the Transition object itself, but
          this property is exposed for when you want to pass around a
          Transition's promise, but not the Transition object itself, since
          Transition object can be externally `abort`ed, while the promise
          cannot.
         */
        promise: null,
  
        /**
          Custom state can be stored on a Transition's `data` object.
          This can be useful for decorating a Transition within an earlier
          hook and shared with a later hook. Properties set on `data` will
          be copied to new transitions generated by calling `retry` on this
          transition.
         */
        data: null,
  
        /**
          A standard promise hook that resolves if the transition
          succeeds and rejects if it fails/redirects/aborts.
  
          Forwards to the internal `promise` property which you can
          use in situations where you want to pass around a thennable,
          but not the Transition itself.
  
          @param {Function} success
          @param {Function} failure
         */
        then: function(success, failure) {
          return this.promise.then(success, failure);
        },
  
        /**
          Aborts the Transition. Note you can also implicitly abort a transition
          by initiating another transition while a previous one is underway.
         */
        abort: function() {
          if (this.isAborted) { return this; }
          log(this.router, this.sequence, this.targetName + ": transition was aborted");
          this.isAborted = true;
          this.router.activeTransition = null;
          return this;
        },
  
        /**
          Retries a previously-aborted transition (making sure to abort the
          transition if it's still active). Returns a new transition that
          represents the new attempt to transition.
         */
        retry: function() {
          this.abort();
  
          var recogHandlers = this.router.recognizer.handlersFor(this.targetName),
              newTransition = performTransition(this.router, recogHandlers, this.providedModelsArray, this.params, this.data);
  
          return newTransition;
        },
  
        /**
          Sets the URL-changing method to be employed at the end of a
          successful transition. By default, a new Transition will just
          use `updateURL`, but passing 'replace' to this method will
          cause the URL to update using 'replaceWith' instead. Omitting
          a parameter will disable the URL change, allowing for transitions
          that don't update the URL at completion (this is also used for
          handleURL, since the URL has already changed before the
          transition took place).
  
          @param {String} method the type of URL-changing method to use
            at the end of a transition. Accepted values are 'replace',
            falsy values, or any other non-falsy value (which is
            interpreted as an updateURL transition).
  
          @return {Transition} this transition
         */
        method: function(method) {
          this.urlMethod = method;
          return this;
        }
      };
  
      function Router() {
        this.recognizer = new RouteRecognizer();
      }
  
  
  
      /**
        Promise reject reasons passed to promise rejection
        handlers for failed transitions.
       */
      Router.UnrecognizedURLError = function(message) {
        this.message = (message || "UnrecognizedURLError");
        this.name = "UnrecognizedURLError";
      };
  
      Router.TransitionAborted = function(message) {
        this.message = (message || "TransitionAborted");
        this.name = "TransitionAborted";
      };
  
      function errorTransition(router, reason) {
        return new Transition(router, RSVP.reject(reason));
      }
  
  
      Router.prototype = {
        /**
          The main entry point into the router. The API is essentially
          the same as the `map` method in `route-recognizer`.
  
          This method extracts the String handler at the last `.to()`
          call and uses it as the name of the whole route.
  
          @param {Function} callback
        */
        map: function(callback) {
          this.recognizer.delegate = this.delegate;
  
          this.recognizer.map(callback, function(recognizer, route) {
            var lastHandler = route[route.length - 1].handler;
            var args = [route, { as: lastHandler }];
            recognizer.add.apply(recognizer, args);
          });
        },
  
        hasRoute: function(route) {
          return this.recognizer.hasRoute(route);
        },
  
        /**
          Clears the current and target route handlers and triggers exit
          on each of them starting at the leaf and traversing up through
          its ancestors.
        */
        reset: function() {
          eachHandler(this.currentHandlerInfos || [], function(handlerInfo) {
            var handler = handlerInfo.handler;
            if (handler.exit) {
              handler.exit();
            }
          });
          this.currentHandlerInfos = null;
          this.targetHandlerInfos = null;
        },
  
        activeTransition: null,
  
        /**
          var handler = handlerInfo.handler;
          The entry point for handling a change to the URL (usually
          via the back and forward button).
  
          Returns an Array of handlers and the parameters associated
          with those parameters.
  
          @param {String} url a URL to process
  
          @return {Array} an Array of `[handler, parameter]` tuples
        */
        handleURL: function(url) {
          // Perform a URL-based transition, but don't change
          // the URL afterward, since it already happened.
          return doTransition(this, arguments).method(null);
        },
  
        /**
          Hook point for updating the URL.
  
          @param {String} url a URL to update to
        */
        updateURL: function() {
          throw "updateURL is not implemented";
        },
  
        /**
          Hook point for replacing the current URL, i.e. with replaceState
  
          By default this behaves the same as `updateURL`
  
          @param {String} url a URL to update to
        */
        replaceURL: function(url) {
          this.updateURL(url);
        },
  
        /**
          Transition into the specified named route.
  
          If necessary, trigger the exit callback on any handlers
          that are no longer represented by the target route.
  
          @param {String} name the name of the route
        */
        transitionTo: function(name) {
          return doTransition(this, arguments);
        },
  
        /**
          Identical to `transitionTo` except that the current URL will be replaced
          if possible.
  
          This method is intended primarily for use with `replaceState`.
  
          @param {String} name the name of the route
        */
        replaceWith: function(name) {
          return doTransition(this, arguments).method('replace');
        },
  
        /**
          @private
  
          This method takes a handler name and a list of contexts and returns
          a serialized parameter hash suitable to pass to `recognizer.generate()`.
  
          @param {String} handlerName
          @param {Array[Object]} contexts
          @return {Object} a serialized parameter hash
        */
        paramsForHandler: function(handlerName, callback) {
          return paramsForHandler(this, handlerName, slice.call(arguments, 1));
        },
  
        /**
          Take a named route and context objects and generate a
          URL.
  
          @param {String} name the name of the route to generate
            a URL for
          @param {...Object} objects a list of objects to serialize
  
          @return {String} a URL
        */
        generate: function(handlerName) {
          var params = paramsForHandler(this, handlerName, slice.call(arguments, 1));
          return this.recognizer.generate(handlerName, params);
        },
  
        isActive: function(handlerName) {
          var contexts = slice.call(arguments, 1);
  
          var targetHandlerInfos = this.targetHandlerInfos,
              found = false, names, object, handlerInfo, handlerObj;
  
          if (!targetHandlerInfos) { return false; }
  
          for (var i=targetHandlerInfos.length-1; i>=0; i--) {
            handlerInfo = targetHandlerInfos[i];
            if (handlerInfo.name === handlerName) { found = true; }
  
            if (found) {
              if (contexts.length === 0) { break; }
  
              if (handlerInfo.isDynamic) {
                object = contexts.pop();
                if (handlerInfo.context !== object) { return false; }
              }
            }
          }
  
          return contexts.length === 0 && found;
        },
  
        trigger: function(name) {
          var args = slice.call(arguments);
          trigger(this.currentHandlerInfos, false, args);
        },
  
        /**
          Hook point for logging transition status updates.
  
          @param {String} message The message to log.
        */
        log: null
      };
  
      /**
        @private
  
        Used internally for both URL and named transition to determine
        a shared pivot parent route and other data necessary to perform
        a transition.
       */
      function getMatchPoint(router, handlers, objects, inputParams) {
  
        var objectsToMatch = objects.length,
            matchPoint = handlers.length,
            providedModels = {}, i,
            currentHandlerInfos = router.currentHandlerInfos || [],
            params = {},
            oldParams = router.currentParams || {},
            activeTransition = router.activeTransition,
            handlerParams = {};
  
        merge(params, inputParams);
  
        for (i = handlers.length - 1; i >= 0; i--) {
          var handlerObj = handlers[i],
              handlerName = handlerObj.handler,
              oldHandlerInfo = currentHandlerInfos[i],
              hasChanged = false;
  
          // Check if handler names have changed.
          if (!oldHandlerInfo || oldHandlerInfo.name !== handlerObj.handler) { hasChanged = true; }
  
          if (handlerObj.isDynamic) {
            // URL transition.
  
            if (objectsToMatch > 0) {
              hasChanged = true;
              providedModels[handlerName] = objects[--objectsToMatch];
            } else {
              handlerParams[handlerName] = {};
              for (var prop in handlerObj.params) {
                if (!handlerObj.params.hasOwnProperty(prop)) { continue; }
                var newParam = handlerObj.params[prop];
                if (oldParams[prop] !== newParam) { hasChanged = true; }
                handlerParams[handlerName][prop] = params[prop] = newParam;
              }
            }
          } else if (handlerObj.hasOwnProperty('names') && handlerObj.names.length) {
            // Named transition.
  
            if (objectsToMatch > 0) {
              hasChanged = true;
              providedModels[handlerName] = objects[--objectsToMatch];
            } else if (activeTransition && activeTransition.providedModels[handlerName]) {
  
              // Use model from previous transition attempt, preferably the resolved one.
              hasChanged = true;
              providedModels[handlerName] = activeTransition.providedModels[handlerName] ||
                                            activeTransition.resolvedModels[handlerName];
            } else {
              var names = handlerObj.names;
              handlerParams[handlerName] = {};
              for (var j = 0, len = names.length; j < len; ++j) {
                var name = names[j];
                handlerParams[handlerName][name] = params[name] = oldParams[name];
              }
            }
          }
  
          if (hasChanged) { matchPoint = i; }
        }
  
        if (objectsToMatch > 0) {
          throw "More context objects were passed than there are dynamic segments for the route: " + handlers[handlers.length - 1].handler;
        }
  
        return { matchPoint: matchPoint, providedModels: providedModels, params: params, handlerParams: handlerParams };
      }
  
      /**
        @private
  
        This method takes a handler name and a list of contexts and returns
        a serialized parameter hash suitable to pass to `recognizer.generate()`.
  
        @param {Router} router
        @param {String} handlerName
        @param {Array[Object]} objects
        @return {Object} a serialized parameter hash
      */
      function paramsForHandler(router, handlerName, objects) {
  
        var handlers = router.recognizer.handlersFor(handlerName),
            params = {},
            matchPoint = getMatchPoint(router, handlers, objects).matchPoint,
            object, handlerObj, handler, names, i;
  
        for (i=0; i<handlers.length; i++) {
          handlerObj = handlers[i];
          handler = router.getHandler(handlerObj.handler);
          names = handlerObj.names;
  
          // If it's a dynamic segment
          if (names.length) {
            // If we have objects, use them
            if (i >= matchPoint) {
              object = objects.shift();
            // Otherwise use existing context
            } else {
              object = handler.context;
            }
  
            // Serialize to generate params
            merge(params, serialize(handler, object, names));
          }
        }
        return params;
      }
  
      function merge(hash, other) {
        for (var prop in other) {
          if (other.hasOwnProperty(prop)) { hash[prop] = other[prop]; }
        }
      }
  
      /**
        @private
      */
      function createNamedTransition(router, args) {
        var handlers = router.recognizer.handlersFor(args[0]);
  
        log(router, "Attempting transition to " + args[0]);
  
        return performTransition(router, handlers, slice.call(args, 1), router.currentParams);
      }
  
      /**
        @private
      */
      function createURLTransition(router, url) {
  
        var results = router.recognizer.recognize(url),
            currentHandlerInfos = router.currentHandlerInfos;
  
        log(router, "Attempting URL transition to " + url);
  
        if (!results) {
          return errorTransition(router, new Router.UnrecognizedURLError(url));
        }
  
        return performTransition(router, results, [], {});
      }
  
  
      /**
        @private
  
        Takes an Array of `HandlerInfo`s, figures out which ones are
        exiting, entering, or changing contexts, and calls the
        proper handler hooks.
  
        For example, consider the following tree of handlers. Each handler is
        followed by the URL segment it handles.
  
        ```
        |~index ("/")
        | |~posts ("/posts")
        | | |-showPost ("/:id")
        | | |-newPost ("/new")
        | | |-editPost ("/edit")
        | |~about ("/about/:id")
        ```
  
        Consider the following transitions:
  
        1. A URL transition to `/posts/1`.
           1. Triggers the `*model` callbacks on the
              `index`, `posts`, and `showPost` handlers
           2. Triggers the `enter` callback on the same
           3. Triggers the `setup` callback on the same
        2. A direct transition to `newPost`
           1. Triggers the `exit` callback on `showPost`
           2. Triggers the `enter` callback on `newPost`
           3. Triggers the `setup` callback on `newPost`
        3. A direct transition to `about` with a specified
           context object
           1. Triggers the `exit` callback on `newPost`
              and `posts`
           2. Triggers the `serialize` callback on `about`
           3. Triggers the `enter` callback on `about`
           4. Triggers the `setup` callback on `about`
  
        @param {Transition} transition
        @param {Array[HandlerInfo]} handlerInfos
      */
      function setupContexts(transition, handlerInfos) {
        var router = transition.router,
            partition = partitionHandlers(router.currentHandlerInfos || [], handlerInfos);
  
        router.targetHandlerInfos = handlerInfos;
  
        eachHandler(partition.exited, function(handlerInfo) {
          var handler = handlerInfo.handler;
          delete handler.context;
          if (handler.exit) { handler.exit(); }
        });
  
        var currentHandlerInfos = partition.unchanged.slice();
        router.currentHandlerInfos = currentHandlerInfos;
  
        eachHandler(partition.updatedContext, function(handlerInfo) {
          handlerEnteredOrUpdated(transition, currentHandlerInfos, handlerInfo, false);
        });
  
        eachHandler(partition.entered, function(handlerInfo) {
          handlerEnteredOrUpdated(transition, currentHandlerInfos, handlerInfo, true);
        });
  
        if (router.didTransition) {
          router.didTransition(handlerInfos);
        }
      }
  
      /**
        @private
  
        Helper method used by setupContexts. Handles errors or redirects
        that may happen in enter/setup.
      */
      function handlerEnteredOrUpdated(transition, currentHandlerInfos, handlerInfo, enter) {
        var handler = handlerInfo.handler,
            context = handlerInfo.context;
  
        try {
          if (enter && handler.enter) { handler.enter(); }
          checkAbort(transition);
  
          setContext(handler, context);
  
          if (handler.setup) { handler.setup(context); }
          checkAbort(transition);
        } catch(e) {
          if (!(e instanceof Router.TransitionAborted)) {
            // Trigger the `error` event starting from this failed handler.
            trigger(currentHandlerInfos.concat(handlerInfo), true, ['error', e, transition]);
          }
  
          // Propagate the error so that the transition promise will reject.
          throw e;
        }
  
        currentHandlerInfos.push(handlerInfo);
      }
  
  
      /**
        @private
  
        Iterates over an array of `HandlerInfo`s, passing the handler
        and context into the callback.
  
        @param {Array[HandlerInfo]} handlerInfos
        @param {Function(Object, Object)} callback
      */
      function eachHandler(handlerInfos, callback) {
        for (var i=0, l=handlerInfos.length; i<l; i++) {
          callback(handlerInfos[i]);
        }
      }
  
      /**
        @private
  
        This function is called when transitioning from one URL to
        another to determine which handlers are not longer active,
        which handlers are newly active, and which handlers remain
        active but have their context changed.
  
        Take a list of old handlers and new handlers and partition
        them into four buckets:
  
        * unchanged: the handler was active in both the old and
          new URL, and its context remains the same
        * updated context: the handler was active in both the
          old and new URL, but its context changed. The handler's
          `setup` method, if any, will be called with the new
          context.
        * exited: the handler was active in the old URL, but is
          no longer active.
        * entered: the handler was not active in the old URL, but
          is now active.
  
        The PartitionedHandlers structure has four fields:
  
        * `updatedContext`: a list of `HandlerInfo` objects that
          represent handlers that remain active but have a changed
          context
        * `entered`: a list of `HandlerInfo` objects that represent
          handlers that are newly active
        * `exited`: a list of `HandlerInfo` objects that are no
          longer active.
        * `unchanged`: a list of `HanderInfo` objects that remain active.
  
        @param {Array[HandlerInfo]} oldHandlers a list of the handler
          information for the previous URL (or `[]` if this is the
          first handled transition)
        @param {Array[HandlerInfo]} newHandlers a list of the handler
          information for the new URL
  
        @return {Partition}
      */
      function partitionHandlers(oldHandlers, newHandlers) {
        var handlers = {
              updatedContext: [],
              exited: [],
              entered: [],
              unchanged: []
            };
  
        var handlerChanged, contextChanged, i, l;
  
        for (i=0, l=newHandlers.length; i<l; i++) {
          var oldHandler = oldHandlers[i], newHandler = newHandlers[i];
  
          if (!oldHandler || oldHandler.handler !== newHandler.handler) {
            handlerChanged = true;
          }
  
          if (handlerChanged) {
            handlers.entered.push(newHandler);
            if (oldHandler) { handlers.exited.unshift(oldHandler); }
          } else if (contextChanged || oldHandler.context !== newHandler.context) {
            contextChanged = true;
            handlers.updatedContext.push(newHandler);
          } else {
            handlers.unchanged.push(oldHandler);
          }
        }
  
        for (i=newHandlers.length, l=oldHandlers.length; i<l; i++) {
          handlers.exited.unshift(oldHandlers[i]);
        }
  
        return handlers;
      }
  
      function trigger(handlerInfos, ignoreFailure, args) {
  
        var name = args.shift();
  
        if (!handlerInfos) {
          if (ignoreFailure) { return; }
          throw new Error("Could not trigger event '" + name + "'. There are no active handlers");
        }
  
        var eventWasHandled = false;
  
        for (var i=handlerInfos.length-1; i>=0; i--) {
          var handlerInfo = handlerInfos[i],
              handler = handlerInfo.handler;
  
          if (handler.events && handler.events[name]) {
            if (handler.events[name].apply(handler, args) === true) {
              eventWasHandled = true;
            } else {
              return;
            }
          }
        }
  
        if (!eventWasHandled && !ignoreFailure) {
          throw new Error("Nothing handled the event '" + name + "'.");
        }
      }
  
      function setContext(handler, context) {
        handler.context = context;
        if (handler.contextDidChange) { handler.contextDidChange(); }
      }
  
      /**
        @private
  
        Creates, begins, and returns a Transition.
       */
      function performTransition(router, recogHandlers, providedModelsArray, params, data) {
  
        var matchPointResults = getMatchPoint(router, recogHandlers, providedModelsArray, params),
            targetName = recogHandlers[recogHandlers.length - 1].handler,
            wasTransitioning = false;
  
        // Check if there's already a transition underway.
        if (router.activeTransition) {
          if (transitionsIdentical(router.activeTransition, targetName, providedModelsArray)) {
            return router.activeTransition;
          }
          router.activeTransition.abort();
          wasTransitioning = true;
        }
  
        var deferred = RSVP.defer(),
            transition = new Transition(router, deferred.promise);
  
        transition.targetName = targetName;
        transition.providedModels = matchPointResults.providedModels;
        transition.providedModelsArray = providedModelsArray;
        transition.params = matchPointResults.params;
        transition.data = data || {};
        router.activeTransition = transition;
  
        var handlerInfos = generateHandlerInfos(router, recogHandlers);
  
        // Fire 'willTransition' event on current handlers, but don't fire it
        // if a transition was already underway.
        if (!wasTransitioning) {
          trigger(router.currentHandlerInfos, true, ['willTransition', transition]);
        }
  
        log(router, transition.sequence, "Beginning validation for transition to " + transition.targetName);
        validateEntry(transition, handlerInfos, 0, matchPointResults.matchPoint, matchPointResults.handlerParams)
                     .then(transitionSuccess, transitionFailure);
  
        return transition;
  
        function transitionSuccess() {
          checkAbort(transition);
  
          try {
            finalizeTransition(transition, handlerInfos);
  
            // Resolve with the final handler.
            deferred.resolve(handlerInfos[handlerInfos.length - 1].handler);
          } catch(e) {
            deferred.reject(e);
          }
  
          // Don't nullify if another transition is underway (meaning
          // there was a transition initiated with enter/setup).
          if (!transition.isAborted) {
            router.activeTransition = null;
          }
        }
  
        function transitionFailure(reason) {
          deferred.reject(reason);
        }
      }
  
      /**
        @private
  
        Accepts handlers in Recognizer format, either returned from
        recognize() or handlersFor(), and returns unified
        `HandlerInfo`s.
       */
      function generateHandlerInfos(router, recogHandlers) {
        var handlerInfos = [];
        for (var i = 0, len = recogHandlers.length; i < len; ++i) {
          var handlerObj = recogHandlers[i],
              isDynamic = handlerObj.isDynamic || (handlerObj.names && handlerObj.names.length);
  
          handlerInfos.push({
            isDynamic: !!isDynamic,
            name: handlerObj.handler,
            handler: router.getHandler(handlerObj.handler)
          });
        }
        return handlerInfos;
      }
  
      /**
        @private
       */
      function transitionsIdentical(oldTransition, targetName, providedModelsArray) {
  
        if (oldTransition.targetName !== targetName) { return false; }
  
        var oldModels = oldTransition.providedModelsArray;
        if (oldModels.length !== providedModelsArray.length) { return false; }
  
        for (var i = 0, len = oldModels.length; i < len; ++i) {
          if (oldModels[i] !== providedModelsArray[i]) { return false; }
        }
        return true;
      }
  
      /**
        @private
  
        Updates the URL (if necessary) and calls `setupContexts`
        to update the router's array of `currentHandlerInfos`.
       */
      function finalizeTransition(transition, handlerInfos) {
  
        var router = transition.router,
            seq = transition.sequence,
            handlerName = handlerInfos[handlerInfos.length - 1].name;
  
        log(router, seq, "Validation succeeded, finalizing transition;");
  
        // Collect params for URL.
        var objects = [];
        for (var i = 0, len = handlerInfos.length; i < len; ++i) {
          var handlerInfo = handlerInfos[i];
          if (handlerInfo.isDynamic) {
            objects.push(handlerInfo.context);
          }
        }
  
        var params = paramsForHandler(router, handlerName, objects);
  
        transition.providedModelsArray = [];
        transition.providedContexts = {};
        router.currentParams = params;
  
        var urlMethod = transition.urlMethod;
        if (urlMethod) {
          var url = router.recognizer.generate(handlerName, params);
  
          if (urlMethod === 'replace') {
            router.replaceURL(url);
          } else {
            // Assume everything else is just a URL update for now.
            router.updateURL(url);
          }
        }
  
        setupContexts(transition, handlerInfos);
        log(router, seq, "TRANSITION COMPLETE.");
      }
  
      /**
        @private
  
        Internal function used to construct the chain of promises used
        to validate a transition. Wraps calls to `beforeModel`, `model`,
        and `afterModel` in promises, and checks for redirects/aborts
        between each.
       */
      function validateEntry(transition, handlerInfos, index, matchPoint, handlerParams) {
  
        if (index === handlerInfos.length) {
          // No more contexts to resolve.
          return RSVP.resolve(transition.resolvedModels);
        }
  
        var router = transition.router,
            handlerInfo = handlerInfos[index],
            handler = handlerInfo.handler,
            handlerName = handlerInfo.name,
            seq = transition.sequence,
            errorAlreadyHandled = false,
            resolvedModel;
  
        if (index < matchPoint) {
          log(router, seq, handlerName + ": using context from already-active handler");
  
          // We're before the match point, so don't run any hooks,
          // just use the already resolved context from the handler.
          resolvedModel = handlerInfo.handler.context;
          return proceed();
        }
  
        return RSVP.resolve().then(handleAbort)
                             .then(beforeModel)
                             .then(null, handleError)
                             .then(handleAbort)
                             .then(model)
                             .then(null, handleError)
                             .then(handleAbort)
                             .then(afterModel)
                             .then(null, handleError)
                             .then(handleAbort)
                             .then(proceed);
  
        function handleAbort(result) {
  
          if (transition.isAborted) {
            log(transition.router, transition.sequence, "detected abort.");
            errorAlreadyHandled = true;
            return RSVP.reject(new Router.TransitionAborted());
          }
  
          return result;
        }
  
        function handleError(reason) {
  
          if (errorAlreadyHandled) { return RSVP.reject(reason); }
          errorAlreadyHandled = true;
          transition.abort();
  
          log(router, seq, handlerName + ": handling error: " + reason);
  
          // An error was thrown / promise rejected, so fire an
          // `error` event from this handler info up to root.
          trigger(handlerInfos.slice(0, index + 1), true, ['error', reason, transition]);
  
          if (handler.error) {
            handler.error(reason, transition); }
  
  
          // Propagate the original error.
          return RSVP.reject(reason);
        }
  
        function beforeModel() {
  
          log(router, seq, handlerName + ": calling beforeModel hook");
  
          return handler.beforeModel && handler.beforeModel(transition);
        }
  
        function model() {
          log(router, seq, handlerName + ": resolving model");
  
          return getModel(handlerInfo, transition, handlerParams[handlerName], index >= matchPoint);
        }
  
        function afterModel(context) {
  
          log(router, seq, handlerName + ": calling afterModel hook");
  
          // Pass the context and resolved parent contexts to afterModel, but we don't
          // want to use the value returned from `afterModel` in any way, but rather
          // always resolve with the original `context` object.
  
          resolvedModel = context;
          return handler.afterModel && handler.afterModel(resolvedModel, transition);
        }
  
        function proceed() {
          log(router, seq, handlerName + ": validation succeeded, proceeding");
  
          handlerInfo.context = transition.resolvedModels[handlerInfo.name] = resolvedModel;
          return validateEntry(transition, handlerInfos, index + 1, matchPoint, handlerParams);
        }
      }
  
      /**
        @private
  
        Throws a TransitionAborted if the provided transition has been aborted.
       */
      function checkAbort(transition) {
        if (transition.isAborted) {
          log(transition.router, transition.sequence, "detected abort.");
          throw new Router.TransitionAborted();
        }
      }
  
      /**
        @private
  
        Encapsulates the logic for whether to call `model` on a route,
        or use one of the models provided to `transitionTo`.
       */
      function getModel(handlerInfo, transition, handlerParams, needsUpdate) {
  
        var handler = handlerInfo.handler,
            handlerName = handlerInfo.name;
  
        if (!needsUpdate && handler.hasOwnProperty('context')) {
          return handler.context;
        }
  
        if (handlerInfo.isDynamic && transition.providedModels.hasOwnProperty(handlerName)) {
          var providedModel = transition.providedModels[handlerName];
          return typeof providedModel === 'function' ? providedModel() : providedModel;
        }
  
        return handler.model && handler.model(handlerParams || {}, transition);
      }
  
      /**
        @private
       */
      function log(router, sequence, msg) {
  
        if (!router.log) { return; }
  
        if (arguments.length === 3) {
          router.log("Transition #" + sequence + ": " + msg);
        } else {
          msg = sequence;
          router.log(msg);
        }
      }
  
      /**
        @private
  
        Begins and returns a Transition based on the provided
        arguments. Accepts arguments in the form of both URL
        transitions and named transitions.
  
        @param {Router} router
        @param {Array[Object]} args arguments passed to transitionTo,
          replaceWith, or handleURL
      */
      function doTransition(router, args) {
        // Normalize blank transitions to root URL transitions.
        var name = args[0] || '/';
  
        if (name.charAt(0) === '/') {
          return createURLTransition(router, name);
        } else {
          return createNamedTransition(router, args);
        }
      }
  
      /**
        @private
  
        Serializes a handler using its custom `serialize` method or
        by a default that looks up the expected property name from
        the dynamic segment.
  
        @param {Object} handler a router handler
        @param {Object} model the model to be serialized for this handler
        @param {Array[Object]} names the names array attached to an
          handler object returned from router.recognizer.handlersFor()
      */
      function serialize(handler, model, names) {
  
        // Use custom serialize if it exists.
        if (handler.serialize) {
          return handler.serialize(model, names);
        }
  
        if (names.length !== 1) { return; }
  
        var name = names[0], object = {};
  
        if (/_id$/.test(name)) {
          object[name] = model.id;
        } else {
          object[name] = model;
        }
        return object;
      }
  
      return Router;
    });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  function DSL(name) {
    this.parent = name;
    this.matches = [];
  }
  
  DSL.prototype = {
    resource: function(name, options, callback) {
      if (arguments.length === 2 && typeof options === 'function') {
        callback = options;
        options = {};
      }
  
      if (arguments.length === 1) {
        options = {};
      }
  
      if (typeof options.path !== 'string') {
        options.path = "/" + name;
      }
  
      if (callback) {
        var dsl = new DSL(name);
        callback.call(dsl);
        this.push(options.path, name, dsl.generate());
      } else {
        this.push(options.path, name);
      }
    },
  
    push: function(url, name, callback) {
      var parts = name.split('.');
      if (url === "" || url === "/" || parts[parts.length-1] === "index") { this.explicitIndex = true; }
  
      this.matches.push([url, name, callback]);
    },
  
    route: function(name, options) {
      Ember.assert("You must use `this.resource` to nest", typeof options !== 'function');
  
      options = options || {};
  
      if (typeof options.path !== 'string') {
        options.path = "/" + name;
      }
  
      if (this.parent && this.parent !== 'application') {
        name = this.parent + "." + name;
      }
  
      this.push(options.path, name);
    },
  
    generate: function() {
      var dslMatches = this.matches;
  
      if (!this.explicitIndex) {
        this.route("index", { path: "/" });
      }
  
      return function(match) {
        for (var i=0, l=dslMatches.length; i<l; i++) {
          var dslMatch = dslMatches[i];
          match(dslMatch[0]).to(dslMatch[1], dslMatch[2]);
        }
      };
    }
  };
  
  DSL.map = function(callback) {
    var dsl = new DSL();
    callback.call(dsl);
    return dsl;
  };
  
  Ember.RouterDSL = DSL;
  
  })();
  
  
  
  (function() {
  var get = Ember.get;
  
  /**
  @module ember
  @submodule ember-routing
  */
  
  Ember.controllerFor = function(container, controllerName, context, lookupOptions) {
    return container.lookup('controller:' + controllerName, lookupOptions) ||
           Ember.generateController(container, controllerName, context);
  };
  /*
    Generates a controller automatically if none was provided.
    The type of generated controller depends on the context.
    You can customize your generated controllers by defining
    `App.ObjectController` and `App.ArrayController`
  */
  Ember.generateController = function(container, controllerName, context) {
    var controller, DefaultController, fullName, instance;
  
    if (context && Ember.isArray(context)) {
      DefaultController = container.resolve('controller:array');
      controller = DefaultController.extend({
        content: context
      });
    } else if (context) {
      DefaultController = container.resolve('controller:object');
      controller = DefaultController.extend({
        content: context
      });
    } else {
      DefaultController = container.resolve('controller:basic');
      controller = DefaultController.extend();
    }
  
    controller.toString = function() {
      return "(generated " + controllerName + " controller)";
    };
  
    fullName = 'controller:' + controllerName;
    container.register(fullName, controller);
  
    instance = container.lookup(fullName);
  
    if (get(instance, 'namespace.LOG_ACTIVE_GENERATION')) {
      Ember.Logger.info("generated -> " + fullName, { fullName: fullName });
    }
  
    return instance;
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var Router = requireModule("router");
  var get = Ember.get, set = Ember.set;
  var defineProperty = Ember.defineProperty;
  
  var DefaultView = Ember._MetamorphView;
  function setupLocation(router) {
    var location = get(router, 'location'),
        rootURL = get(router, 'rootURL'),
        options = {};
  
    if (typeof rootURL === 'string') {
      options.rootURL = rootURL;
    }
  
    if ('string' === typeof location) {
      options.implementation = location;
      location = set(router, 'location', Ember.Location.create(options));
  
    }
  }
  
  /**
    The `Ember.Router` class manages the application state and URLs. Refer to
    the [routing guide](http://emberjs.com/guides/routing/) for documentation.
  
    @class Router
    @namespace Ember
    @extends Ember.Object
  */
  Ember.Router = Ember.Object.extend({
    location: 'hash',
  
    init: function() {
      this.router = this.constructor.router || this.constructor.map(Ember.K);
      this._activeViews = {};
      setupLocation(this);
    },
  
    url: Ember.computed(function() {
      return get(this, 'location').getURL();
    }),
  
    startRouting: function() {
      this.router = this.router || this.constructor.map(Ember.K);
  
      var router = this.router,
          location = get(this, 'location'),
          container = this.container,
          self = this;
  
      setupRouter(this, router, location);
  
      container.register('view:default', DefaultView);
      container.register('view:toplevel', Ember.View.extend());
  
      location.onUpdateURL(function(url) {
        self.handleURL(url);
      });
  
      this.handleURL(location.getURL());
    },
  
    didTransition: function(infos) {
      var appController = this.container.lookup('controller:application'),
          path = routePath(infos);
  
      if (!('currentPath' in appController)) {
        defineProperty(appController, 'currentPath');
      }
      set(appController, 'currentPath', path);
      this.notifyPropertyChange('url');
  
      if (get(this, 'namespace').LOG_TRANSITIONS) {
        Ember.Logger.log("Transitioned into '" + path + "'");
      }
    },
  
    handleURL: function(url) {
      scheduleLoadingStateEntry(this);
  
      var self = this;
  
      return this.router.handleURL(url).then(function() {
        transitionCompleted(self);
      });
    },
  
    transitionTo: function() {
      return doTransition(this, 'transitionTo', arguments);
    },
  
    replaceWith: function() {
      return doTransition(this, 'replaceWith', arguments);
    },
  
    generate: function() {
      var url = this.router.generate.apply(this.router, arguments);
      return this.location.formatURL(url);
    },
  
    isActive: function(routeName) {
      var router = this.router;
      return router.isActive.apply(router, arguments);
    },
  
    send: function(name, context) {
      this.router.trigger.apply(this.router, arguments);
    },
  
    hasRoute: function(route) {
      return this.router.hasRoute(route);
    },
  
    /**
      @private
  
      Resets the state of the router by clearing the current route
      handlers and deactivating them.
  
      @method reset
     */
    reset: function() {
      this.router.reset();
    },
  
    _lookupActiveView: function(templateName) {
      var active = this._activeViews[templateName];
      return active && active[0];
    },
  
    _connectActiveView: function(templateName, view) {
      var existing = this._activeViews[templateName];
  
      if (existing) {
        existing[0].off('willDestroyElement', this, existing[1]);
      }
  
      var disconnect = function() {
        delete this._activeViews[templateName];
      };
  
      this._activeViews[templateName] = [view, disconnect];
      view.one('willDestroyElement', this, disconnect);
    }
  });
  
  function getHandlerFunction(router) {
    var seen = {}, container = router.container,
        DefaultRoute = container.resolve('route:basic');
  
    return function(name) {
      var routeName = 'route:' + name,
          handler = container.lookup(routeName);
  
      if (seen[name]) { return handler; }
  
      seen[name] = true;
  
      if (!handler) {
        if (name === 'loading') { return {}; }
  
        container.register(routeName, DefaultRoute.extend());
        handler = container.lookup(routeName);
  
        if (get(router, 'namespace.LOG_ACTIVE_GENERATION')) {
          Ember.Logger.info("generated -> " + routeName, { fullName: routeName });
        }
      }
  
      if (name === 'application') {
        // Inject default `error` handler.
        handler.events = handler.events || {};
        handler.events.error = handler.events.error || defaultErrorHandler;
      }
  
      handler.routeName = name;
      return handler;
    };
  }
  
  function defaultErrorHandler(error, transition) {
    Ember.Logger.error('Error while loading route:', error);
  
    // Using setTimeout allows us to escape from the Promise's try/catch block
    setTimeout(function() { throw error; });
  }
  
  
  function routePath(handlerInfos) {
    var path = [];
  
    for (var i=1, l=handlerInfos.length; i<l; i++) {
      var name = handlerInfos[i].name,
          nameParts = name.split(".");
  
      path.push(nameParts[nameParts.length - 1]);
    }
  
    return path.join(".");
  }
  
  function setupRouter(emberRouter, router, location) {
    var lastURL;
  
    router.getHandler = getHandlerFunction(emberRouter);
  
    var doUpdateURL = function() {
      location.setURL(lastURL);
    };
  
    router.updateURL = function(path) {
      lastURL = path;
      Ember.run.once(doUpdateURL);
    };
  
    if (location.replaceURL) {
      var doReplaceURL = function() {
        location.replaceURL(lastURL);
      };
  
      router.replaceURL = function(path) {
        lastURL = path;
        Ember.run.once(doReplaceURL);
      };
    }
  
    router.didTransition = function(infos) {
      emberRouter.didTransition(infos);
    };
  }
  
  function doTransition(router, method, args) {
    // Normalize blank route to root URL.
    args = [].slice.call(args);
    args[0] = args[0] || '/';
  
    var passedName = args[0], name;
  
    if (passedName.charAt(0) === '/') {
      name = passedName;
    } else {
      if (!router.router.hasRoute(passedName)) {
        name = args[0] = passedName + '.index';
      } else {
        name = passedName;
      }
  
      Ember.assert("The route " + passedName + " was not found", router.router.hasRoute(name));
    }
  
    scheduleLoadingStateEntry(router);
  
    var transitionPromise = router.router[method].apply(router.router, args);
    transitionPromise.then(function() {
      transitionCompleted(router);
    });
  
    // We want to return the configurable promise object
    // so that callers of this function can use `.method()` on it,
    // which obviously doesn't exist for normal RSVP promises.
    return transitionPromise;
  }
  
  function scheduleLoadingStateEntry(router) {
    if (router._loadingStateActive) { return; }
    router._shouldEnterLoadingState = true;
    Ember.run.scheduleOnce('routerTransitions', null, enterLoadingState, router);
  }
  
  function enterLoadingState(router) {
    if (router._loadingStateActive || !router._shouldEnterLoadingState) { return; }
  
    var loadingRoute = router.router.getHandler('loading');
    if (loadingRoute) {
      if (loadingRoute.enter) { loadingRoute.enter(); }
      if (loadingRoute.setup) { loadingRoute.setup(); }
      router._loadingStateActive = true;
    }
  }
  
  function exitLoadingState(router) {
    router._shouldEnterLoadingState = false;
    if (!router._loadingStateActive) { return; }
  
    var loadingRoute = router.router.getHandler('loading');
    if (loadingRoute && loadingRoute.exit) { loadingRoute.exit(); }
    router._loadingStateActive = false;
  }
  
  function transitionCompleted(router) {
    router.notifyPropertyChange('url');
    exitLoadingState(router);
  }
  
  Ember.Router.reopenClass({
    map: function(callback) {
      var router = this.router = new Router();
  
      if (get(this, 'namespace.LOG_TRANSITIONS_INTERNAL')) {
        router.log = Ember.Logger.debug;
      }
  
      var dsl = Ember.RouterDSL.map(function() {
        this.resource('application', { path: "/" }, function() {
          callback.call(this);
        });
      });
  
      router.map(dsl.generate());
      return router;
    }
  });
  
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var get = Ember.get, set = Ember.set,
      classify = Ember.String.classify,
      fmt = Ember.String.fmt,
      a_forEach = Ember.EnumerableUtils.forEach,
      a_replace = Ember.EnumerableUtils.replace;
  
  /**
    The `Ember.Route` class is used to define individual routes. Refer to
    the [routing guide](http://emberjs.com/guides/routing/) for documentation.
  
    @class Route
    @namespace Ember
    @extends Ember.Object
  */
  Ember.Route = Ember.Object.extend({
    /**
      @private
  
      @method exit
    */
    exit: function() {
      this.deactivate();
      this.teardownViews();
    },
  
    /**
      @private
  
      @method enter
    */
    enter: function() {
      this.activate();
    },
  
    /**
      The collection of functions, keyed by name, available on this route as
      action targets.
  
      These functions will be invoked when a matching `{{action}}` is triggered
      from within a template and the application's current route is this route.
  
      Events can also be invoked from other parts of your application via `Route#send`
      or `Controller#send`.
  
      The context of the event will be this route.
  
      ## Bubbling
  
      By default, an event will stop bubbling once a handler defined
      on the `events` hash handles it. To continue bubbling the event,
      you must return `true` from the handler.
  
      ## Built-in events
  
      There are a few built-in events pertaining to transitions that you
      can use to customize transition behavior: `willTransition` and
      `error`.
  
      ### `willTransition`
  
      The `willTransition` event is fired at the beginning of any
      attempted transition with a `Transition` object as the sole
      argument. This event can be used for aborting, redirecting,
      or decorating the transition from the currently active routes.
  
      A good example is preventing navigation when a form is
      half-filled out:
  
      ```js
      App.ContactFormRoute = Ember.Route.extend({
        events: {
          willTransition: function(transition) {
            if (this.controller.get('userHasEnteredData')) {
              this.controller.displayNavigationConfirm();
              transition.abort();
            }
          }
        }
      });
      ```
  
      You can also redirect elsewhere by calling
      `this.transitionTo('elsewhere')` from within `willTransition`.
      Note that `willTransition` will not be fired for the
      redirecting `transitionTo`, since `willTransition` doesn't
      fire when there is already a transition underway. If you want
      subsequent `willTransition` events to fire for the redirecting
      transition, you must first explicitly call
      `transition.abort()`.
  
      ### `error`
  
      When attempting to transition into a route, any of the hooks
      may throw an error, or return a promise that rejects, at which
      point an `error` event will be fired on the partially-entered
      routes, allowing for per-route error handling logic, or shared
      error handling logic defined on a parent route.
  
      Here is an example of an error handler that will be invoked
      for rejected promises / thrown errors from the various hooks
      on the route, as well as any unhandled errors from child
      routes:
  
      ```js
      App.AdminRoute = Ember.Route.extend({
        beforeModel: function() {
          throw "bad things!";
          // ...or, equivalently:
          return Ember.RSVP.reject("bad things!");
        },
  
        events: {
          error: function(error, transition) {
            // Assuming we got here due to the error in `beforeModel`,
            // we can expect that error === "bad things!",
            // but a promise model rejecting would also
            // call this hook, as would any errors encountered
            // in `afterModel`.
  
            // The `error` hook is also provided the failed
            // `transition`, which can be stored and later
            // `.retry()`d if desired.
  
            this.transitionTo('login');
          }
        }
      });
      ```
  
      `error` events that bubble up all the way to `ApplicationRoute`
      will fire a default error handler that logs the error. You can
      specify your own global default error handler by overriding the
      `error` handler on `ApplicationRoute`:
  
      ```js
      App.ApplicationRoute = Ember.Route.extend({
        events: {
          error: function(error, transition) {
            this.controllerFor('banner').displayError(error.message);
          }
        }
      });
      ```
  
      @see {Ember.Route#send}
      @see {Handlebars.helpers.action}
  
      @property events
      @type Hash
      @default null
    */
    events: null,
  
    /**
      This hook is executed when the router completely exits this route. It is
      not executed when the model for the route changes.
  
      @method deactivate
    */
    deactivate: Ember.K,
  
    /**
      This hook is executed when the router enters the route for the first time.
      It is not executed when the model for the route changes.
  
      @method activate
    */
    activate: Ember.K,
  
    /**
      Transition into another route. Optionally supply a model for the
      route in question. The model will be serialized into the URL
      using the `serialize` hook.
  
      @method transitionTo
      @param {String} name the name of the route
      @param {...Object} models the
    */
    transitionTo: function(name, context) {
      var router = this.router;
      return router.transitionTo.apply(router, arguments);
    },
  
    /**
      Transition into another route while replacing the current URL if
      possible. Identical to `transitionTo` in all other respects.
  
      Of the bundled location types, only `history` currently supports
      this behavior.
  
      @method replaceWith
      @param {String} name the name of the route
      @param {...Object} models the
    */
    replaceWith: function() {
      var router = this.router;
      return this.router.replaceWith.apply(this.router, arguments);
    },
  
    send: function() {
      return this.router.send.apply(this.router, arguments);
    },
  
    /**
      @private
  
      This hook is the entry point for router.js
  
      @method setup
    */
    setup: function(context) {
      var controller = this.controllerFor(this.routeName, context);
  
      // Assign the route's controller so that it can more easily be
      // referenced in event handlers
      this.controller = controller;
  
      if (this.setupControllers) {
        Ember.deprecate("Ember.Route.setupControllers is deprecated. Please use Ember.Route.setupController(controller, model) instead.");
        this.setupControllers(controller, context);
      } else {
        this.setupController(controller, context);
      }
  
      if (this.renderTemplates) {
        Ember.deprecate("Ember.Route.renderTemplates is deprecated. Please use Ember.Route.renderTemplate(controller, model) instead.");
        this.renderTemplates(context);
      } else {
        this.renderTemplate(controller, context);
      }
    },
  
    /**
      @deprecated
  
      A hook you can implement to optionally redirect to another route.
  
      If you call `this.transitionTo` from inside of this hook, this route
      will not be entered in favor of the other hook.
  
      This hook is deprecated in favor of using the `afterModel` hook
      for performing redirects after the model has resolved.
  
      @method redirect
      @param {Object} model the model for this route
    */
    redirect: Ember.K,
  
    /**
      This hook is the first of the route entry validation hooks
      called when an attempt is made to transition into a route
      or one of its children. It is called before `model` and
      `afterModel`, and is appropriate for cases when:
  
      1) A decision can be made to redirect elsewhere without
         needing to resolve the model first.
      2) Any async operations need to occur first before the
         model is attempted to be resolved.
  
      This hook is provided the current `transition` attempt
      as a parameter, which can be used to `.abort()` the transition,
      save it for a later `.retry()`, or retrieve values set
      on it from a previous hook. You can also just call
      `this.transitionTo` to another route to implicitly
      abort the `transition`.
  
      You can return a promise from this hook to pause the
      transition until the promise resolves (or rejects). This could
      be useful, for instance, for retrieving async code from
      the server that is required to enter a route.
  
      ```js
      App.PostRoute = Ember.Route.extend({
        beforeModel: function(transition) {
          if (!App.Post) {
            return Ember.$.getScript('/models/post.js');
          }
        }
      });
      ```
  
      If `App.Post` doesn't exist in the above example,
      `beforeModel` will use jQuery's `getScript`, which
      returns a promise that resolves after the server has
      successfully retrieved and executed the code from the
      server. Note that if an error were to occur, it would
      be passed to the `error` hook on `Ember.Route`, but
      it's also possible to handle errors specific to
      `beforeModel` right from within the hook (to distinguish
      from the shared error handling behavior of the `error`
      hook):
  
      ```js
      App.PostRoute = Ember.Route.extend({
        beforeModel: function(transition) {
          if (!App.Post) {
            var self = this;
            return Ember.$.getScript('post.js').then(null, function(e) {
              self.transitionTo('help');
  
              // Note that the above transitionTo will implicitly
              // halt the transition. If you were to return
              // nothing from this promise reject handler,
              // according to promise semantics, that would
              // convert the reject into a resolve and the
              // transition would continue. To propagate the
              // error so that it'd be handled by the `error`
              // hook, you would have to either
              return Ember.RSVP.reject(e);
              // or
              throw e;
            });
          }
        }
      });
      ```
  
      @param {Transition} transition
      @return {Promise} if the value returned from this hook is
        a promise, the transition will pause until the transition
        resolves. Otherwise, non-promise return values are not
        utilized in any way.
    */
    beforeModel: Ember.K,
  
    /**
      This hook is called after this route's model has resolved.
      It follows identical async/promise semantics to `beforeModel`
      but is provided the route's resolved model in addition to
      the `transition`, and is therefore suited to performing
      logic that can only take place after the model has already
      resolved.
  
      ```js
      App.PostRoute = Ember.Route.extend({
        afterModel: function(posts, transition) {
          if (posts.length === 1) {
            this.transitionTo('post.show', posts[0]);
          }
        }
      });
      ```
  
      Refer to documentation for `beforeModel` for a description
      of transition-pausing semantics when a promise is returned
      from this hook.
  
      @param {Transition} transition
      @return {Promise} if the value returned from this hook is
        a promise, the transition will pause until the transition
        resolves. Otherwise, non-promise return values are not
        utilized in any way.
     */
    afterModel: function(resolvedModel, transition) {
      this.redirect(resolvedModel, transition);
    },
  
  
    /**
      @private
  
      Called when the context is changed by router.js.
  
      @method contextDidChange
    */
    contextDidChange: function() {
      this.currentModel = this.context;
    },
  
    /**
      A hook you can implement to convert the URL into the model for
      this route.
  
      ```js
      App.Router.map(function() {
        this.resource('post', {path: '/posts/:post_id'});
      });
      ```
  
      The model for the `post` route is `App.Post.find(params.post_id)`.
  
      By default, if your route has a dynamic segment ending in `_id`:
  
      * The model class is determined from the segment (`post_id`'s
        class is `App.Post`)
      * The find method is called on the model class with the value of
        the dynamic segment.
  
      Note that for routes with dynamic segments, this hook is only
      executed when entered via the URL. If the route is entered
      through a transition (e.g. when using the `linkTo` Handlebars
      helper), then a model context is already provided and this hook
      is not called. Routes without dynamic segments will always
      execute the model hook.
  
      This hook follows the asynchronous/promise semantics
      described in the documentation for `beforeModel`. In particular,
      if a promise returned from `model` fails, the error will be
      handled by the `error` hook on `Ember.Route`.
  
      @method model
      @param {Object} params the parameters extracted from the URL
    */
    model: function(params, resolvedParentModels) {
      var match, name, sawParams, value;
  
      for (var prop in params) {
        if (match = prop.match(/^(.*)_id$/)) {
          name = match[1];
          value = params[prop];
        }
        sawParams = true;
      }
  
      if (!name && sawParams) { return params; }
      else if (!name) { return; }
  
      var className = classify(name),
          namespace = this.router.namespace,
          modelClass = namespace[className];
  
      Ember.assert("You used the dynamic segment " + name + "_id in your router, but " + namespace + "." + className + " did not exist and you did not override your route's `model` hook.", modelClass);
      return modelClass.find(value);
    },
  
    /**
      A hook you can implement to convert the route's model into parameters
      for the URL.
  
      ```js
      App.Router.map(function() {
        this.resource('post', {path: '/posts/:post_id'});
      });
  
      App.PostRoute = Ember.Route.extend({
        model: function(params) {
          // the server returns `{ id: 12 }`
          return jQuery.getJSON("/posts/" + params.post_id);
        },
  
        serialize: function(model) {
          // this will make the URL `/posts/12`
          return { post_id: model.id };
        }
      });
      ```
  
      The default `serialize` method inserts the model's `id` into the
      route's dynamic segment (in this case, `:post_id`).
  
      This method is called when `transitionTo` is called with a context
      in order to populate the URL.
  
      @method serialize
      @param {Object} model the route's model
      @param {Array} params an Array of parameter names for the current
        route (in the example, `['post_id']`.
      @return {Object} the serialized parameters
    */
    serialize: function(model, params) {
      if (params.length !== 1) { return; }
  
      var name = params[0], object = {};
  
      if (/_id$/.test(name)) {
        object[name] = get(model, 'id');
      } else {
        object[name] = model;
      }
  
      return object;
    },
  
    /**
      A hook you can use to setup the controller for the current route.
  
      This method is called with the controller for the current route and the
      model supplied by the `model` hook.
  
      By default, the `setupController` hook sets the `content` property of
      the controller to the `model`.
  
      This means that your template will get a proxy for the model as its
      context, and you can act as though the model itself was the context.
  
      The provided controller will be one resolved based on the name
      of this route.
  
      If no explicit controller is defined, Ember will automatically create
      an appropriate controller for the model.
  
      * if the model is an `Ember.Array` (including record arrays from Ember
        Data), the controller is an `Ember.ArrayController`.
      * otherwise, the controller is an `Ember.ObjectController`.
  
      As an example, consider the router:
  
      ```js
      App.Router.map(function() {
        this.resource('post', {path: '/posts/:post_id'});
      });
      ```
  
      For the `post` route, a controller named `App.PostController` would
      be used if it is defined. If it is not defined, an `Ember.ObjectController`
      instance would be used.
  
      @method setupController
    */
    setupController: function(controller, context){
      if (controller && (context !== undefined)) {
        set(controller, 'model', context);
      }
    },
  
    /**
      Returns the controller for a particular route.
  
      ```js
      App.PostRoute = Ember.Route.extend({
        setupController: function(controller, post) {
          this._super(controller, post);
          this.controllerFor('posts').set('currentPost', post);
        }
      });
      ```
  
      By default, the controller for `post` is the shared instance of
      `App.PostController`.
  
      @method controllerFor
      @param {String} name the name of the route
      @param {Object} model the model associated with the route (optional)
      @return {Ember.Controller}
    */
    controllerFor: function(name, model) {
      var container = this.router.container,
          controller = container.lookup('controller:' + name);
  
      if (!controller) {
        model = model || this.modelFor(name);
  
        Ember.assert("You are trying to look up a controller that you did not define, and for which Ember does not know the model.\n\nThis is not a controller for a route, so you must explicitly define the controller ("+this.router.namespace.toString() + "." + Ember.String.capitalize(Ember.String.camelize(name))+"Controller) or pass a model as the second parameter to `controllerFor`, so that Ember knows which type of controller to create for you.", model || this.container.lookup('route:' + name));
  
        controller = Ember.generateController(container, name, model);
      }
  
      return controller;
    },
  
    /**
      Returns the current model for a given route.
  
      This is the object returned by the `model` hook of the route
      in question.
  
      @method modelFor
      @param {String} name the name of the route
      @return {Object} the model object
    */
    modelFor: function(name) {
  
      var route = this.container.lookup('route:' + name),
          transition = this.router.router.activeTransition;
  
      // If we are mid-transition, we want to try and look up
      // resolved parent contexts on the current transitionEvent.
      if (transition) {
        var modelLookupName = (route && route.routeName) || name;
        if (transition.resolvedModels.hasOwnProperty(modelLookupName)) {
          return transition.resolvedModels[modelLookupName];
        }
      }
  
      return route && route.currentModel;
    },
  
    /**
      A hook you can use to render the template for the current route.
  
      This method is called with the controller for the current route and the
      model supplied by the `model` hook. By default, it renders the route's
      template, configured with the controller for the route.
  
      This method can be overridden to set up and render additional or
      alternative templates.
  
      @method renderTemplate
      @param {Object} controller the route's controller
      @param {Object} model the route's model
    */
    renderTemplate: function(controller, model) {
      this.render();
    },
  
    /**
      Renders a template into an outlet.
  
      This method has a number of defaults, based on the name of the
      route specified in the router.
  
      For example:
  
      ```js
      App.Router.map(function() {
        this.route('index');
        this.resource('post', {path: '/posts/:post_id'});
      });
  
      App.PostRoute = App.Route.extend({
        renderTemplate: function() {
          this.render();
        }
      });
      ```
  
      The name of the `PostRoute`, as defined by the router, is `post`.
  
      By default, render will:
  
      * render the `post` template
      * with the `post` view (`PostView`) for event handling, if one exists
      * and the `post` controller (`PostController`), if one exists
      * into the `main` outlet of the `application` template
  
      You can override this behavior:
  
      ```js
      App.PostRoute = App.Route.extend({
        renderTemplate: function() {
          this.render('myPost', {   // the template to render
            into: 'index',          // the template to render into
            outlet: 'detail',       // the name of the outlet in that template
            controller: 'blogPost'  // the controller to use for the template
          });
        }
      });
      ```
  
      Remember that the controller's `content` will be the route's model. In
      this case, the default model will be `App.Post.find(params.post_id)`.
  
      @method render
      @param {String} name the name of the template to render
      @param {Object} options the options
    */
    render: function(name, options) {
      Ember.assert("The name in the given arguments is undefined", arguments.length > 0 ? !Ember.isNone(arguments[0]) : true);
  
      if (typeof name === 'object' && !options) {
        options = name;
        name = this.routeName;
      }
  
      name = name ? name.replace(/\//g, '.') : this.routeName;
  
      var container = this.container,
          view = container.lookup('view:' + name),
          template = container.lookup('template:' + name);
  
      if (!view && !template) {
        if (get(this.router, 'namespace.LOG_VIEW_LOOKUPS')) {
          Ember.Logger.info("Could not find \"" + name + "\" template or view. Nothing will be rendered", { fullName: 'template:' + name });
        }
        return;
      }
  
      options = normalizeOptions(this, name, template, options);
      view = setupView(view, container, options);
  
      if (options.outlet === 'main') { this.lastRenderedTemplate = name; }
  
      appendView(this, view, options);
    },
  
    willDestroy: function() {
      this.teardownViews();
    },
  
    teardownViews: function() {
      // Tear down the top level view
      if (this.teardownTopLevelView) { this.teardownTopLevelView(); }
  
      // Tear down any outlets rendered with 'into'
      var teardownOutletViews = this.teardownOutletViews || [];
      a_forEach(teardownOutletViews, function(teardownOutletView) {
        teardownOutletView();
      });
  
      delete this.teardownTopLevelView;
      delete this.teardownOutletViews;
      delete this.lastRenderedTemplate;
    }
  });
  
  function parentRoute(route) {
    var handlerInfos = route.router.router.targetHandlerInfos;
  
    if (!handlerInfos) { return; }
  
    var parent, current;
  
    for (var i=0, l=handlerInfos.length; i<l; i++) {
      current = handlerInfos[i].handler;
      if (current === route) { return parent; }
      parent = current;
    }
  }
  
  function parentTemplate(route, isRecursive) {
    var parent = parentRoute(route), template;
  
    if (!parent) { return; }
  
    Ember.warn(fmt("The immediate parent route ('%@') did not render into the main outlet and the default 'into' option ('%@') may not be expected", [get(parent, 'routeName'), get(route, 'routeName')]), !isRecursive);
  
    if (template = parent.lastRenderedTemplate) {
      return template;
    } else {
      return parentTemplate(parent, true);
    }
  }
  
  function normalizeOptions(route, name, template, options) {
    options = options || {};
    options.into = options.into ? options.into.replace(/\//g, '.') : parentTemplate(route);
    options.outlet = options.outlet || 'main';
    options.name = name;
    options.template = template;
    options.LOG_VIEW_LOOKUPS = get(route.router, 'namespace.LOG_VIEW_LOOKUPS');
  
    Ember.assert("An outlet ("+options.outlet+") was specified but this view will render at the root level.", options.outlet === 'main' || options.into);
  
    var controller = options.controller, namedController;
  
    if (options.controller) {
      controller = options.controller;
    } else if (namedController = route.container.lookup('controller:' + name)) {
      controller = namedController;
    } else {
      controller = route.routeName;
    }
  
    if (typeof controller === 'string') {
      controller = route.container.lookup('controller:' + controller);
    }
  
    options.controller = controller;
  
    return options;
  }
  
  function setupView(view, container, options) {
    if (view) {
      if (options.LOG_VIEW_LOOKUPS) {
        Ember.Logger.info("Rendering " + options.name + " with " + view, { fullName: 'view:' + options.name });
      }
    } else {
      var defaultView = options.into ? 'view:default' : 'view:toplevel';
      view = container.lookup(defaultView);
      if (options.LOG_VIEW_LOOKUPS) {
        Ember.Logger.info("Rendering " + options.name + " with default view " + view, { fullName: 'view:' + options.name });
      }
    }
  
    if (!get(view, 'templateName')) {
      set(view, 'template', options.template);
  
      set(view, '_debugTemplateName', options.name);
    }
  
    set(view, 'renderedName', options.name);
    set(view, 'controller', options.controller);
  
    return view;
  }
  
  function appendView(route, view, options) {
    if (options.into) {
      var parentView = route.router._lookupActiveView(options.into);
      var teardownOutletView = generateOutletTeardown(parentView, options.outlet);
      if (!route.teardownOutletViews) { route.teardownOutletViews = []; }
      a_replace(route.teardownOutletViews, 0, 0, [teardownOutletView]);
      parentView.connectOutlet(options.outlet, view);
    } else {
      var rootElement = get(route, 'router.namespace.rootElement');
      // tear down view if one is already rendered
      if (route.teardownTopLevelView) {
        route.teardownTopLevelView();
      }
      route.router._connectActiveView(options.name, view);
      route.teardownTopLevelView = generateTopLevelTeardown(view);
      view.appendTo(rootElement);
    }
  }
  
  function generateTopLevelTeardown(view) {
    return function() { view.destroy(); };
  }
  
  function generateOutletTeardown(parentView, outlet) {
    return function() { parentView.disconnectOutlet(outlet); };
  }
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  Ember.onLoad('Ember.Handlebars', function() {
    var handlebarsResolve = Ember.Handlebars.resolveParams,
        map = Ember.ArrayPolyfills.map,
        get = Ember.get;
  
    function resolveParams(context, params, options) {
      var resolved = handlebarsResolve(context, params, options);
      return map.call(resolved, unwrap);
  
      function unwrap(object, i) {
        if (params[i] === 'controller') { return object; }
  
        if (Ember.ControllerMixin.detect(object)) {
          return unwrap(get(object, 'model'));
        } else {
          return object;
        }
      }
    }
  
    Ember.Router.resolveParams = resolveParams;
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var get = Ember.get, set = Ember.set, fmt = Ember.String.fmt;
  Ember.onLoad('Ember.Handlebars', function(Handlebars) {
  
    var resolveParams = Ember.Router.resolveParams,
        isSimpleClick = Ember.ViewUtils.isSimpleClick;
  
    function fullRouteName(router, name) {
      if (!router.hasRoute(name)) {
        name = name + '.index';
      }
  
      return name;
    }
  
    function resolvedPaths(options) {
      var types = options.options.types.slice(1),
          data = options.options.data;
  
      return resolveParams(options.context, options.params, { types: types, data: data });
    }
  
    function args(linkView, router, route) {
      var passedRouteName = route || linkView.namedRoute, routeName;
  
      routeName = fullRouteName(router, passedRouteName);
  
      Ember.assert(fmt("The attempt to linkTo route '%@' failed. The router did not find '%@' in its possible routes: '%@'", [passedRouteName, passedRouteName, Ember.keys(router.router.recognizer.names).join("', '")]), router.hasRoute(routeName));
  
      var ret = [ routeName ];
      return ret.concat(resolvedPaths(linkView.parameters));
    }
  
    /**
      `Ember.LinkView` renders an element whose `click` event triggers a
      transition of the application's instance of `Ember.Router` to
      a supplied route by name.
  
      Instances of `LinkView` will most likely be created through
      the `linkTo` Handlebars helper, but properties of this class
      can be overridden to customize application-wide behavior.
  
      @class LinkView
      @namespace Ember
      @extends Ember.View
      @see {Handlebars.helpers.linkTo}
    **/
    var LinkView = Ember.LinkView = Ember.View.extend({
      tagName: 'a',
      namedRoute: null,
      currentWhen: null,
  
      /**
        Sets the `title` attribute of the `LinkView`'s HTML element.
  
        @property title
        @default null
      **/
      title: null,
  
      /**
        The CSS class to apply to `LinkView`'s element when its `active`
        property is `true`.
  
        @property activeClass
        @type String
        @default active
      **/
      activeClass: 'active',
  
      /**
        The CSS class to apply to a `LinkView`'s element when its `disabled`
        property is `true`.
  
        @property disabledClass
        @type String
        @default disabled
      **/
      disabledClass: 'disabled',
      _isDisabled: false,
  
      /**
        Determines whether the `LinkView` will trigger routing via
        the `replaceWith` routing strategy.
  
        @type Boolean
        @default false
      **/
      replace: false,
      attributeBindings: ['href', 'title'],
      classNameBindings: ['active', 'disabled'],
  
      /**
        By default the `{{linkTo}}` helper responds to the `click` event. You
        can override this globally by setting this property to your custom
        event name.
  
        This is particularly useful on mobile when one wants to avoid the 300ms
        click delay using some sort of custom `tap` event.
  
        @property eventName
        @type String
        @default click
      */
      eventName: 'click',
  
      // this is doc'ed here so it shows up in the events
      // section of the API documentation, which is where
      // people will likely go looking for it.
      /**
        Triggers the `LinkView`'s routing behavior. If
        `eventName` is changed to a value other than `click`
        the routing behavior will trigger on that custom event
        instead.
  
        @event click
      **/
  
      init: function() {
        this._super();
        // Map desired event name to invoke function
        var eventName = get(this, 'eventName');
        this.on(eventName, this, this._invoke);
      },
  
      /**
        @private
  
        Even though this isn't a virtual view, we want to treat it as if it is
        so that you can access the parent with {{view.prop}}
  
        @method concreteView
      **/
      concreteView: Ember.computed(function() {
        return get(this, 'parentView');
      }).property('parentView'),
  
      /**
  
        Accessed as a classname binding to apply the `LinkView`'s `disabledClass`
        CSS `class` to the element when the link is disabled.
  
        When `true` interactions with the element will not trigger route changes.
        @property disabled
      */
      disabled: Ember.computed(function(key, value) {
        if (value !== undefined) { this.set('_isDisabled', value); }
  
        return value ? this.get('disabledClass') : false;
      }),
  
      /**
        Accessed as a classname binding to apply the `LinkView`'s `activeClass`
        CSS `class` to the element when the link is active.
  
        A `LinkView` is considered active when its `currentWhen` property is `true`
        or the application's current route is the route the `LinkView` would trigger
        transitions into.
  
        @property active
      **/
      active: Ember.computed(function() {
        var router = this.get('router'),
            params = resolvedPaths(this.parameters),
            currentWithIndex = this.currentWhen + '.index',
            isActive = router.isActive.apply(router, [this.currentWhen].concat(params)) ||
                       router.isActive.apply(router, [currentWithIndex].concat(params));
  
        if (isActive) { return get(this, 'activeClass'); }
      }).property('namedRoute', 'router.url'),
  
      router: Ember.computed(function() {
        return this.get('controller').container.lookup('router:main');
      }),
  
      /**
        @private
  
        Event handler that invokes the link, activating the associated route.
  
        @method _invoke
        @param {Event} event
      */
      _invoke: function(event) {
        if (!isSimpleClick(event)) { return true; }
  
        event.preventDefault();
        if (this.bubbles === false) { event.stopPropagation(); }
  
        if (get(this, '_isDisabled')) { return false; }
  
        var router = this.get('router'),
            routeArgs = args(this, router);
  
        if (this.get('replace')) {
          router.replaceWith.apply(router, routeArgs);
        } else {
          router.transitionTo.apply(router, routeArgs);
        }
      },
  
      /**
        Sets the element's `href` attribute to the url for
        the `LinkView`'s targeted route.
  
        If the `LinkView`'s `tagName` is changed to a value other
        than `a`, this property will be ignored.
  
        @property href
      **/
      href: Ember.computed(function() {
        if (this.get('tagName') !== 'a') { return false; }
  
        var router = this.get('router');
        return router.generate.apply(router, args(this, router));
      })
    });
  
    LinkView.toString = function() { return "LinkView"; };
  
    /**
      The `{{linkTo}}` helper renders a link to the supplied
      `routeName` passing an optionally supplied model to the
      route as its `model` context of the route. The block
      for `{{linkTo}}` becomes the innerHTML of the rendered
      element:
  
      ```handlebars
      {{#linkTo photoGallery}}
        Great Hamster Photos
      {{/linkTo}}
      ```
  
      ```html
      <a href="/hamster-photos">
        Great Hamster Photos
      </a>
      ```
  
      ### Supplying a tagName
      By default `{{linkTo}}` renders an `<a>` element. This can
      be overridden for a single use of `{{linkTo}}` by supplying
      a `tagName` option:
  
      ```handlebars
      {{#linkTo photoGallery tagName="li"}}
        Great Hamster Photos
      {{/linkTo}}
      ```
  
      ```html
      <li>
        Great Hamster Photos
      </li>
      ```
  
      To override this option for your entire application, see
      "Overriding Application-wide Defaults".
  
      ### Handling `href`
      `{{linkTo}}` will use your application's Router to
      fill the element's `href` property with a url that
      matches the path to the supplied `routeName` for your
      routers's configured `Location` scheme, which defaults
      to Ember.HashLocation.
  
      ### Handling current route
      `{{linkTo}}` will apply a CSS class name of 'active'
      when the application's current route matches
      the supplied routeName. For example, if the application's
      current route is 'photoGallery.recent' the following
      use of `{{linkTo}}`:
  
      ```handlebars
      {{#linkTo photoGallery.recent}}
        Great Hamster Photos from the last week
      {{/linkTo}}
      ```
  
      will result in
  
      ```html
      <a href="/hamster-photos/this-week" class="active">
        Great Hamster Photos
      </a>
      ```
  
      The CSS class name used for active classes can be customized
      for a single use of `{{linkTo}}` by passing an `activeClass`
      option:
  
      ```handlebars
      {{#linkTo photoGallery.recent activeClass="current-url"}}
        Great Hamster Photos from the last week
      {{/linkTo}}
      ```
  
      ```html
      <a href="/hamster-photos/this-week" class="current-url">
        Great Hamster Photos
      </a>
      ```
  
      To override this option for your entire application, see
      "Overriding Application-wide Defaults".
  
      ### Supplying a model
      An optional model argument can be used for routes whose
      paths contain dynamic segments. This argument will become
      the model context of the linked route:
  
      ```javascript
      App.Router.map(function(){
        this.resource("photoGallery", {path: "hamster-photos/:photo_id"});
      })
      ```
  
      ```handlebars
      {{#linkTo photoGallery aPhoto}}
        {{aPhoto.title}}
      {{/linkTo}}
      ```
  
      ```html
      <a href="/hamster-photos/42">
        Tomster
      </a>
      ```
  
      ### Supplying multiple models
      For deep-linking to route paths that contain multiple
      dynamic segments, multiple model arguments can be used.
      As the router transitions through the route path, each
      supplied model argument will become the context for the
      route with the dynamic segments:
  
      ```javascript
      App.Router.map(function(){
        this.resource("photoGallery", {path: "hamster-photos/:photo_id"}, function(){
          this.route("comment", {path: "comments/:comment_id"});
        });
      });
      ```
      This argument will become the model context of the linked route:
  
      ```handlebars
      {{#linkTo photoGallery.comment aPhoto comment}}
        {{comment.body}}
      {{/linkTo}}
      ```
  
      ```html
      <a href="/hamster-photos/42/comment/718">
        A+++ would snuggle again.
      </a>
      ```
  
      ### Overriding Application-wide Defaults
      ``{{linkTo}}`` creates an instance of Ember.LinkView
      for rendering. To override options for your entire
      application, reopen Ember.LinkView and supply the
      desired values:
  
      ``` javascript
      Ember.LinkView.reopen({
        activeClass: "is-active",
        tagName: 'li'
      })
      ```
  
      It is also possible to override the default event in
      this manner:
  
      ``` javascript
      Ember.LinkView.reopen({
        eventName: 'customEventName'
      });
      ```
  
      @method linkTo
      @for Ember.Handlebars.helpers
      @param {String} routeName
      @param {Object} [context]*
      @return {String} HTML string
    */
    Ember.Handlebars.registerHelper('linkTo', function(name) {
      var options = [].slice.call(arguments, -1)[0];
      var params = [].slice.call(arguments, 1, -1);
  
      var hash = options.hash;
  
      hash.namedRoute = name;
      hash.currentWhen = hash.currentWhen || name;
      hash.disabledBinding = hash.disabledWhen;
  
      hash.parameters = {
        context: this,
        options: options,
        params: params
      };
  
      return Ember.Handlebars.helpers.view.call(this, LinkView, options);
    });
  
  });
  
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var get = Ember.get, set = Ember.set;
  Ember.onLoad('Ember.Handlebars', function(Handlebars) {
    /**
    @module ember
    @submodule ember-routing
    */
  
    Handlebars.OutletView = Ember.ContainerView.extend(Ember._Metamorph);
  
    /**
      The `outlet` helper is a placeholder that the router will fill in with
      the appropriate template based on the current state of the application.
  
      ``` handlebars
      {{outlet}}
      ```
  
      By default, a template based on Ember's naming conventions will be rendered
      into the `outlet` (e.g. `App.PostsRoute` will render the `posts` template).
  
      You can render a different template by using the `render()` method in the
      route's `renderTemplate` hook. The following will render the `favoritePost`
      template into the `outlet`.
  
      ``` javascript
      App.PostsRoute = Ember.Route.extend({
        renderTemplate: function() {
          this.render('favoritePost');
        }
      });
      ```
  
      You can create custom named outlets for more control.
  
      ``` handlebars
      {{outlet favoritePost}}
      {{outlet posts}}
      ```
  
      Then you can define what template is rendered into each outlet in your
      route.
  
  
      ``` javascript
      App.PostsRoute = Ember.Route.extend({
        renderTemplate: function() {
          this.render('favoritePost', { outlet: 'favoritePost' });
          this.render('posts', { outlet: 'posts' });
        }
      });
      ```
  
      You can specify the view class that the outlet uses to contain and manage the
      templates rendered into it.
  
      ``` handlebars
      {{outlet viewClass=App.SectionContainer}}
      ```
  
      ``` javascript
      App.SectionContainer = Ember.ContainerView.extend({
        tagName: 'section',
        classNames: ['special']
      });
      ```
  
      @method outlet
      @for Ember.Handlebars.helpers
      @param {String} property the property on the controller
        that holds the view for this outlet
    */
    Handlebars.registerHelper('outlet', function(property, options) {
      var outletSource, outletContainerClass;
  
      if (property && property.data && property.data.isRenderData) {
        options = property;
        property = 'main';
      }
  
      outletSource = options.data.view;
      while (!(outletSource.get('template.isTop'))){
        outletSource = outletSource.get('_parentView');
      }
  
      outletContainerClass = options.hash.viewClass || Handlebars.OutletView;
  
      options.data.view.set('outletSource', outletSource);
      options.hash.currentViewBinding = '_view.outletSource._outlets.' + property;
  
      return Handlebars.helpers.view.call(this, outletContainerClass, options);
    });
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var get = Ember.get, set = Ember.set;
  Ember.onLoad('Ember.Handlebars', function(Handlebars) {
  
    /**
      Renders the named template in the current context with the same-named
      controller.
  
      If a view class with the same name exists, the view class will be used.
  
      The optional second argument is a property path that will be bound
      to the `model` property of the controller.
  
      If a `model` property path is specified, then a new instance of the
      controller will be created.
  
      If no `model` property path is provided, then the helper will use the
      singleton instance of the controller. A given controller may only be used
      one time in your app in this manner.
  
      The default target for `{{action}}`s in the rendered template is the
      controller.
  
      @method render
      @for Ember.Handlebars.helpers
      @param {String} name
      @param {Object?} contextString
      @param {Hash} options
    */
    Ember.Handlebars.registerHelper('render', function(name, contextString, options) {
      Ember.assert("You must pass a template to render", arguments.length >= 2);
      var container, router, controller, view, context, lookupOptions;
  
      if (arguments.length === 2) {
        options = contextString;
        contextString = undefined;
      }
  
      if (typeof contextString === 'string') {
        context = Ember.Handlebars.get(options.contexts[1], contextString, options);
        lookupOptions = { singleton: false };
      }
  
      name = name.replace(/\//g, '.');
      container = options.data.keywords.controller.container;
      router = container.lookup('router:main');
  
      Ember.assert("You can only use the {{render}} helper once without a model object as its second argument, as in {{render \"post\" post}}.", context || !router || !router._lookupActiveView(name));
  
      view = container.lookup('view:' + name) || container.lookup('view:default');
  
      var controllerName = options.hash.controller;
  
      // Look up the controller by name, if provided.
      if (controllerName) {
        controller = container.lookup('controller:' + controllerName, lookupOptions);
        Ember.assert("The controller name you supplied '" + controllerName + "' did not resolve to a controller.", !!controller);
      } else {
        controller = Ember.controllerFor(container, name, context, lookupOptions);
      }
  
      if (controller && context) {
        controller.set('model', context);
      }
  
      var root = options.contexts[1];
  
      if (root) {
        view.registerObserver(root, contextString, function() {
          controller.set('model', Ember.Handlebars.get(root, contextString, options));
        });
      }
  
      controller.set('target', options.data.keywords.controller);
  
      options.hash.viewName = Ember.String.camelize(name);
      options.hash.template = container.lookup('template:' + name);
      options.hash.controller = controller;
  
      if (router && !context) {
        router._connectActiveView(name, view);
      }
  
      Ember.Handlebars.helpers.view.call(this, view, options);
    });
  
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  Ember.onLoad('Ember.Handlebars', function(Handlebars) {
  
    var resolveParams = Ember.Router.resolveParams,
        isSimpleClick = Ember.ViewUtils.isSimpleClick;
  
    var EmberHandlebars = Ember.Handlebars,
        handlebarsGet = EmberHandlebars.get,
        SafeString = EmberHandlebars.SafeString,
        forEach = Ember.ArrayPolyfills.forEach,
        get = Ember.get,
        a_slice = Array.prototype.slice;
  
    function args(options, actionName) {
      var ret = [];
      if (actionName) { ret.push(actionName); }
  
      var types = options.options.types.slice(1),
          data = options.options.data;
  
      return ret.concat(resolveParams(options.context, options.params, { types: types, data: data }));
    }
  
    var ActionHelper = EmberHandlebars.ActionHelper = {
      registeredActions: {}
    };
  
    var keys = ["alt", "shift", "meta", "ctrl"];
  
    var isAllowedClick = function(event, allowedKeys) {
      if (typeof allowedKeys === "undefined") {
        return isSimpleClick(event);
      }
  
      var allowed = true;
  
      forEach.call(keys, function(key) {
        if (event[key + "Key"] && allowedKeys.indexOf(key) === -1) {
          allowed = false;
        }
      });
  
      return allowed;
    };
  
    ActionHelper.registerAction = function(actionName, options, allowedKeys) {
      var actionId = (++Ember.uuid).toString();
  
      ActionHelper.registeredActions[actionId] = {
        eventName: options.eventName,
        handler: function(event) {
          if (!isAllowedClick(event, allowedKeys)) { return true; }
  
          event.preventDefault();
  
          if (options.bubbles === false) {
            event.stopPropagation();
          }
  
          var target = options.target;
  
          if (target.target) {
            target = handlebarsGet(target.root, target.target, target.options);
          } else {
            target = target.root;
          }
  
          Ember.run(function() {
            if (target.send) {
              target.send.apply(target, args(options.parameters, actionName));
            } else {
              Ember.assert("The action '" + actionName + "' did not exist on " + target, typeof target[actionName] === 'function');
              target[actionName].apply(target, args(options.parameters));
            }
          });
        }
      };
  
      options.view.on('willClearRender', function() {
        delete ActionHelper.registeredActions[actionId];
      });
  
      return actionId;
    };
  
    /**
      The `{{action}}` helper registers an HTML element within a template for DOM
      event handling and forwards that interaction to the view's controller
      or supplied `target` option (see 'Specifying a Target').
  
      If the view's controller does not implement the event, the event is sent
      to the current route, and it bubbles up the route hierarchy from there.
  
      User interaction with that element will invoke the supplied action name on
      the appropriate target.
  
      Given the following Handlebars template on the page
  
      ```handlebars
      <script type="text/x-handlebars" data-template-name='a-template'>
        <div {{action anActionName}}>
          click me
        </div>
      </script>
      ```
  
      And application code
  
      ```javascript
      AController = Ember.Controller.extend({
        anActionName: function() {}
      });
  
      AView = Ember.View.extend({
        controller: AController.create(),
        templateName: 'a-template'
      });
  
      aView = AView.create();
      aView.appendTo('body');
      ```
  
      Will result in the following rendered HTML
  
      ```html
      <div class="ember-view">
        <div data-ember-action="1">
          click me
        </div>
      </div>
      ```
  
      Clicking "click me" will trigger the `anActionName` method of the
      `AController`. In this case, no additional parameters will be passed.
  
      If you provide additional parameters to the helper:
  
      ```handlebars
      <button {{action 'edit' post}}>Edit</button>
      ```
  
      Those parameters will be passed along as arguments to the JavaScript
      function implementing the action.
  
      ### Event Propagation
  
      Events triggered through the action helper will automatically have
      `.preventDefault()` called on them. You do not need to do so in your event
      handlers.
  
      To also disable bubbling, pass `bubbles=false` to the helper:
  
      ```handlebars
      <button {{action 'edit' post bubbles=false}}>Edit</button>
      ```
  
      If you need the default handler to trigger you should either register your
      own event handler, or use event methods on your view class. See `Ember.View`
      'Responding to Browser Events' for more information.
  
      ### Specifying DOM event type
  
      By default the `{{action}}` helper registers for DOM `click` events. You can
      supply an `on` option to the helper to specify a different DOM event name:
  
      ```handlebars
      <script type="text/x-handlebars" data-template-name='a-template'>
        <div {{action anActionName on="doubleClick"}}>
          click me
        </div>
      </script>
      ```
  
      See `Ember.View` 'Responding to Browser Events' for a list of
      acceptable DOM event names.
  
      NOTE: Because `{{action}}` depends on Ember's event dispatch system it will
      only function if an `Ember.EventDispatcher` instance is available. An
      `Ember.EventDispatcher` instance will be created when a new `Ember.Application`
      is created. Having an instance of `Ember.Application` will satisfy this
      requirement.
  
      ### Specifying whitelisted modifier keys
  
      By default the `{{action}}` helper will ignore click event with pressed modifier
      keys. You can supply an `allowedKeys` option to specify which keys should not be ignored.
  
      ```handlebars
      <script type="text/x-handlebars" data-template-name='a-template'>
        <div {{action anActionName allowedKeys="alt"}}>
          click me
        </div>
      </script>
      ```
  
      This way the `{{action}}` will fire when clicking with the alt key pressed down.
  
      ### Specifying a Target
  
      There are several possible target objects for `{{action}}` helpers:
  
      In a typical Ember application, where views are managed through use of the
      `{{outlet}}` helper, actions will bubble to the current controller, then
      to the current route, and then up the route hierarchy.
  
      Alternatively, a `target` option can be provided to the helper to change
      which object will receive the method call. This option must be a path
      to an object, accessible in the current context:
  
      ```handlebars
      <script type="text/x-handlebars" data-template-name='a-template'>
        <div {{action anActionName target="MyApplication.someObject"}}>
          click me
        </div>
      </script>
      ```
  
      Clicking "click me" in the rendered HTML of the above template will trigger
      the  `anActionName` method of the object at `MyApplication.someObject`.
  
      If an action's target does not implement a method that matches the supplied
      action name an error will be thrown.
  
      ```handlebars
      <script type="text/x-handlebars" data-template-name='a-template'>
        <div {{action aMethodNameThatIsMissing}}>
          click me
        </div>
      </script>
      ```
  
      With the following application code
  
      ```javascript
      AView = Ember.View.extend({
        templateName; 'a-template',
        // note: no method 'aMethodNameThatIsMissing'
        anActionName: function(event) {}
      });
  
      aView = AView.create();
      aView.appendTo('body');
      ```
  
      Will throw `Uncaught TypeError: Cannot call method 'call' of undefined` when
      "click me" is clicked.
  
      ### Additional Parameters
  
      You may specify additional parameters to the `{{action}}` helper. These
      parameters are passed along as the arguments to the JavaScript function
      implementing the action.
  
      ```handlebars
      <script type="text/x-handlebars" data-template-name='a-template'>
        {{#each person in people}}
          <div {{action edit person}}>
            click me
          </div>
        {{/each}}
      </script>
      ```
  
      Clicking "click me" will trigger the `edit` method on the current view's
      controller with the current person as a parameter.
  
      @method action
      @for Ember.Handlebars.helpers
      @param {String} actionName
      @param {Object} [context]*
      @param {Hash} options
    */
    EmberHandlebars.registerHelper('action', function(actionName) {
      var options = arguments[arguments.length - 1],
          contexts = a_slice.call(arguments, 1, -1);
  
      var hash = options.hash,
          controller;
  
      // create a hash to pass along to registerAction
      var action = {
        eventName: hash.on || "click"
      };
  
      action.parameters = {
        context: this,
        options: options,
        params: contexts
      };
  
      action.view = options.data.view;
  
      var root, target;
  
      if (hash.target) {
        root = this;
        target = hash.target;
      } else if (controller = options.data.keywords.controller) {
        root = controller;
      }
  
      action.target = { root: root, target: target, options: options };
      action.bubbles = hash.bubbles;
  
      var actionId = ActionHelper.registerAction(actionName, action, hash.allowedKeys);
      return new SafeString('data-ember-action="' + actionId + '"');
    });
  
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  if (Ember.ENV.EXPERIMENTAL_CONTROL_HELPER) {
    var get = Ember.get, set = Ember.set;
  
    /**
      The control helper is currently under development and is considered experimental.
      To enable it, set `ENV.EXPERIMENTAL_CONTROL_HELPER = true` before requiring Ember.
  
      @method control
      @for Ember.Handlebars.helpers
      @param {String} path
      @param {String} modelPath
      @param {Hash} options
      @return {String} HTML string
    */
    Ember.Handlebars.registerHelper('control', function(path, modelPath, options) {
      if (arguments.length === 2) {
        options = modelPath;
        modelPath = undefined;
      }
  
      var model;
  
      if (modelPath) {
        model = Ember.Handlebars.get(this, modelPath, options);
      }
  
      var controller = options.data.keywords.controller,
          view = options.data.keywords.view,
          children = get(controller, '_childContainers'),
          controlID = options.hash.controlID,
          container, subContainer;
  
      if (children.hasOwnProperty(controlID)) {
        subContainer = children[controlID];
      } else {
        container = get(controller, 'container'),
        subContainer = container.child();
        children[controlID] = subContainer;
      }
  
      var normalizedPath = path.replace(/\//g, '.');
  
      var childView = subContainer.lookup('view:' + normalizedPath) || subContainer.lookup('view:default'),
          childController = subContainer.lookup('controller:' + normalizedPath),
          childTemplate = subContainer.lookup('template:' + path);
  
      Ember.assert("Could not find controller for path: " + normalizedPath, childController);
      Ember.assert("Could not find view for path: " + normalizedPath, childView);
  
      set(childController, 'target', controller);
      set(childController, 'model', model);
  
      options.hash.template = childTemplate;
      options.hash.controller = childController;
  
      function observer() {
        var model = Ember.Handlebars.get(this, modelPath, options);
        set(childController, 'model', model);
        childView.rerender();
      }
  
      if (modelPath) {
        Ember.addObserver(this, modelPath, observer);
        childView.one('willDestroyElement', this, function() {
          Ember.removeObserver(this, modelPath, observer);
        });
      }
  
      Ember.Handlebars.helpers.view.call(this, childView, options);
    });
  }
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var get = Ember.get, set = Ember.set;
  
  Ember.ControllerMixin.reopen({
    /**
      Transition the application into another route. The route may
      be either a single route or route path:
  
      ```javascript
        aController.transitionToRoute('blogPosts');
        aController.transitionToRoute('blogPosts.recentEntries');
      ```
  
      Optionally supply a model for the route in question. The model
      will be serialized into the URL using the `serialize` hook of
      the route:
  
      ```javascript
        aController.transitionToRoute('blogPost', aPost);
      ```
  
      @param {String} name the name of the route
      @param {...Object} models the
      @for Ember.ControllerMixin
      @method transitionToRoute
    */
    transitionToRoute: function() {
      // target may be either another controller or a router
      var target = get(this, 'target'),
          method = target.transitionToRoute || target.transitionTo;
      return method.apply(target, arguments);
    },
  
    /**
      @deprecated
      @for Ember.ControllerMixin
      @method transitionTo
    */
    transitionTo: function() {
      Ember.deprecate("transitionTo is deprecated. Please use transitionToRoute.");
      return this.transitionToRoute.apply(this, arguments);
    },
  
    replaceRoute: function() {
      // target may be either another controller or a router
      var target = get(this, 'target'),
          method = target.replaceRoute || target.replaceWith;
      return method.apply(target, arguments);
    },
  
    /**
      @deprecated
      @for Ember.ControllerMixin
      @method replaceWith
    */
    replaceWith: function() {
      Ember.deprecate("replaceWith is deprecated. Please use replaceRoute.");
      return this.replaceRoute.apply(this, arguments);
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var get = Ember.get, set = Ember.set;
  
  Ember.View.reopen({
    init: function() {
      set(this, '_outlets', {});
      this._super();
    },
  
    connectOutlet: function(outletName, view) {
      if (this._pendingDisconnections) {
        delete this._pendingDisconnections[outletName];
      }
  
      if (this._hasEquivalentView(outletName, view)) {
        view.destroy();
        return;
      }
  
      var outlets = get(this, '_outlets'),
          container = get(this, 'container'),
          router = container && container.lookup('router:main'),
          renderedName = get(view, 'renderedName');
  
      set(outlets, outletName, view);
  
      if (router && renderedName) {
        router._connectActiveView(renderedName, view);
      }
    },
  
    _hasEquivalentView: function(outletName, view) {
      var existingView = get(this, '_outlets.'+outletName);
      return existingView &&
        existingView.constructor === view.constructor &&
        existingView.get('template') === view.get('template') &&
        existingView.get('context') === view.get('context');
    },
  
    disconnectOutlet: function(outletName) {
      if (!this._pendingDisconnections) {
        this._pendingDisconnections = {};
      }
      this._pendingDisconnections[outletName] = true;
      Ember.run.once(this, '_finishDisconnections');
    },
  
    _finishDisconnections: function() {
      var outlets = get(this, '_outlets');
      var pendingDisconnections = this._pendingDisconnections;
      this._pendingDisconnections = null;
  
      for (var outletName in pendingDisconnections) {
        set(outlets, outletName, null);
      }
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-views
  */
  
  // Add a new named queue after the 'actions' queue (where RSVP promises
  // resolve), which is used in router transitions to prevent unnecessary
  // loading state entry if all context promises resolve on the
  // 'actions' queue first.
  
  var queues = Ember.run.queues,
      indexOf = Ember.ArrayPolyfills.indexOf;
  queues.splice(indexOf.call(queues, 'actions') + 1, 0, 'routerTransitions');
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var get = Ember.get, set = Ember.set;
  
  /*
    This file implements the `location` API used by Ember's router.
  
    That API is:
  
    getURL: returns the current URL
    setURL(path): sets the current URL
    replaceURL(path): replace the current URL (optional)
    onUpdateURL(callback): triggers the callback when the URL changes
    formatURL(url): formats `url` to be placed into `href` attribute
  
    Calling setURL or replaceURL will not trigger onUpdateURL callbacks.
  
    TODO: This should perhaps be moved so that it's visible in the doc output.
  */
  
  /**
    Ember.Location returns an instance of the correct implementation of
    the `location` API.
  
    You can pass it a `implementation` ('hash', 'history', 'none') to force a
    particular implementation.
  
    @class Location
    @namespace Ember
    @static
  */
  Ember.Location = {
    create: function(options) {
      var implementation = options && options.implementation;
      Ember.assert("Ember.Location.create: you must specify a 'implementation' option", !!implementation);
  
      var implementationClass = this.implementations[implementation];
      Ember.assert("Ember.Location.create: " + implementation + " is not a valid implementation", !!implementationClass);
  
      return implementationClass.create.apply(implementationClass, arguments);
    },
  
    registerImplementation: function(name, implementation) {
      this.implementations[name] = implementation;
    },
  
    implementations: {}
  };
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var get = Ember.get, set = Ember.set;
  
  /**
    Ember.NoneLocation does not interact with the browser. It is useful for
    testing, or when you need to manage state with your Router, but temporarily
    don't want it to muck with the URL (for example when you embed your
    application in a larger page).
  
    @class NoneLocation
    @namespace Ember
    @extends Ember.Object
  */
  Ember.NoneLocation = Ember.Object.extend({
    path: '',
  
    getURL: function() {
      return get(this, 'path');
    },
  
    setURL: function(path) {
      set(this, 'path', path);
    },
  
    onUpdateURL: function(callback) {
      this.updateCallback = callback;
    },
  
    handleURL: function(url) {
      set(this, 'path', url);
      this.updateCallback(url);
    },
  
    formatURL: function(url) {
      // The return value is not overly meaningful, but we do not want to throw
      // errors when test code renders templates containing {{action href=true}}
      // helpers.
      return url;
    }
  });
  
  Ember.Location.registerImplementation('none', Ember.NoneLocation);
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var get = Ember.get, set = Ember.set;
  
  /**
    Ember.HashLocation implements the location API using the browser's
    hash. At present, it relies on a hashchange event existing in the
    browser.
  
    @class HashLocation
    @namespace Ember
    @extends Ember.Object
  */
  Ember.HashLocation = Ember.Object.extend({
  
    init: function() {
      set(this, 'location', get(this, 'location') || window.location);
    },
  
    /**
      @private
  
      Returns the current `location.hash`, minus the '#' at the front.
  
      @method getURL
    */
    getURL: function() {
      return get(this, 'location').hash.substr(1);
    },
  
    /**
      @private
  
      Set the `location.hash` and remembers what was set. This prevents
      `onUpdateURL` callbacks from triggering when the hash was set by
      `HashLocation`.
  
      @method setURL
      @param path {String}
    */
    setURL: function(path) {
      get(this, 'location').hash = path;
      set(this, 'lastSetURL', path);
    },
  
    /**
      @private
  
      Register a callback to be invoked when the hash changes. These
      callbacks will execute when the user presses the back or forward
      button, but not after `setURL` is invoked.
  
      @method onUpdateURL
      @param callback {Function}
    */
    onUpdateURL: function(callback) {
      var self = this;
      var guid = Ember.guidFor(this);
  
      Ember.$(window).on('hashchange.ember-location-'+guid, function() {
        Ember.run(function() {
          var path = location.hash.substr(1);
          if (get(self, 'lastSetURL') === path) { return; }
  
          set(self, 'lastSetURL', null);
  
          callback(path);
        });
      });
    },
  
    /**
      @private
  
      Given a URL, formats it to be placed into the page as part
      of an element's `href` attribute.
  
      This is used, for example, when using the {{action}} helper
      to generate a URL based on an event.
  
      @method formatURL
      @param url {String}
    */
    formatURL: function(url) {
      return '#'+url;
    },
  
    willDestroy: function() {
      var guid = Ember.guidFor(this);
  
      Ember.$(window).unbind('hashchange.ember-location-'+guid);
    }
  });
  
  Ember.Location.registerImplementation('hash', Ember.HashLocation);
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-routing
  */
  
  var get = Ember.get, set = Ember.set;
  var popstateFired = false;
  
  /**
    Ember.HistoryLocation implements the location API using the browser's
    history.pushState API.
  
    @class HistoryLocation
    @namespace Ember
    @extends Ember.Object
  */
  Ember.HistoryLocation = Ember.Object.extend({
  
    init: function() {
      set(this, 'location', get(this, 'location') || window.location);
      this.initState();
    },
  
    /**
      @private
  
      Used to set state on first call to setURL
  
      @method initState
    */
    initState: function() {
      set(this, 'history', get(this, 'history') || window.history);
      this.replaceState(this.formatURL(this.getURL()));
    },
  
    /**
      Will be pre-pended to path upon state change
  
      @property rootURL
      @default '/'
    */
    rootURL: '/',
  
    /**
      @private
  
      Returns the current `location.pathname` without rootURL
  
      @method getURL
    */
    getURL: function() {
      var rootURL = get(this, 'rootURL'),
          url = get(this, 'location').pathname;
  
      rootURL = rootURL.replace(/\/$/, '');
      url = url.replace(rootURL, '');
  
      return url;
    },
  
    /**
      @private
  
      Uses `history.pushState` to update the url without a page reload.
  
      @method setURL
      @param path {String}
    */
    setURL: function(path) {
      path = this.formatURL(path);
  
      if (this.getState() && this.getState().path !== path) {
        this.pushState(path);
      }
    },
  
    /**
      @private
  
      Uses `history.replaceState` to update the url without a page reload
      or history modification.
  
      @method replaceURL
      @param path {String}
    */
    replaceURL: function(path) {
      path = this.formatURL(path);
  
      if (this.getState() && this.getState().path !== path) {
        this.replaceState(path);
      }
    },
  
    /**
     @private
  
     Get the current `history.state`
  
     @method getState
    */
    getState: function() {
      return get(this, 'history').state;
    },
  
    /**
     @private
  
     Pushes a new state
  
     @method pushState
     @param path {String}
    */
    pushState: function(path) {
      get(this, 'history').pushState({ path: path }, null, path);
      // used for webkit workaround
      this._previousURL = this.getURL();
    },
  
    /**
     @private
  
     Replaces the current state
  
     @method replaceState
     @param path {String}
    */
    replaceState: function(path) {
      get(this, 'history').replaceState({ path: path }, null, path);
      // used for webkit workaround
      this._previousURL = this.getURL();
    },
  
    /**
      @private
  
      Register a callback to be invoked whenever the browser
      history changes, including using forward and back buttons.
  
      @method onUpdateURL
      @param callback {Function}
    */
    onUpdateURL: function(callback) {
      var guid = Ember.guidFor(this),
          self = this;
  
      Ember.$(window).on('popstate.ember-location-'+guid, function(e) {
        // Ignore initial page load popstate event in Chrome
        if(!popstateFired) {
          popstateFired = true;
          if (self.getURL() === self._previousURL) { return; }
        }
        callback(self.getURL());
      });
    },
  
    /**
      @private
  
      Used when using `{{action}}` helper.  The url is always appended to the rootURL.
  
      @method formatURL
      @param url {String}
    */
    formatURL: function(url) {
      var rootURL = get(this, 'rootURL');
  
      if (url !== '') {
        rootURL = rootURL.replace(/\/$/, '');
      }
  
      return rootURL + url;
    },
  
    willDestroy: function() {
      var guid = Ember.guidFor(this);
  
      Ember.$(window).unbind('popstate.ember-location-'+guid);
    }
  });
  
  Ember.Location.registerImplementation('history', Ember.HistoryLocation);
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  /**
  Ember Routing
  
  @module ember
  @submodule ember-routing
  @requires ember-states
  @requires ember-views
  */
  
  })();
  
  (function() {
  function visit(vertex, fn, visited, path) {
    var name = vertex.name,
      vertices = vertex.incoming,
      names = vertex.incomingNames,
      len = names.length,
      i;
    if (!visited) {
      visited = {};
    }
    if (!path) {
      path = [];
    }
    if (visited.hasOwnProperty(name)) {
      return;
    }
    path.push(name);
    visited[name] = true;
    for (i = 0; i < len; i++) {
      visit(vertices[names[i]], fn, visited, path);
    }
    fn(vertex, path);
    path.pop();
  }
  
  function DAG() {
    this.names = [];
    this.vertices = {};
  }
  
  DAG.prototype.add = function(name) {
    if (!name) { return; }
    if (this.vertices.hasOwnProperty(name)) {
      return this.vertices[name];
    }
    var vertex = {
      name: name, incoming: {}, incomingNames: [], hasOutgoing: false, value: null
    };
    this.vertices[name] = vertex;
    this.names.push(name);
    return vertex;
  };
  
  DAG.prototype.map = function(name, value) {
    this.add(name).value = value;
  };
  
  DAG.prototype.addEdge = function(fromName, toName) {
    if (!fromName || !toName || fromName === toName) {
      return;
    }
    var from = this.add(fromName), to = this.add(toName);
    if (to.incoming.hasOwnProperty(fromName)) {
      return;
    }
    function checkCycle(vertex, path) {
      if (vertex.name === toName) {
        throw new Error("cycle detected: " + toName + " <- " + path.join(" <- "));
      }
    }
    visit(from, checkCycle);
    from.hasOutgoing = true;
    to.incoming[fromName] = from;
    to.incomingNames.push(fromName);
  };
  
  DAG.prototype.topsort = function(fn) {
    var visited = {},
      vertices = this.vertices,
      names = this.names,
      len = names.length,
      i, vertex;
    for (i = 0; i < len; i++) {
      vertex = vertices[names[i]];
      if (!vertex.hasOutgoing) {
        visit(vertex, fn, visited);
      }
    }
  };
  
  DAG.prototype.addEdges = function(name, value, before, after) {
    var i;
    this.map(name, value);
    if (before) {
      if (typeof before === 'string') {
        this.addEdge(name, before);
      } else {
        for (i = 0; i < before.length; i++) {
          this.addEdge(name, before[i]);
        }
      }
    }
    if (after) {
      if (typeof after === 'string') {
        this.addEdge(after, name);
      } else {
        for (i = 0; i < after.length; i++) {
          this.addEdge(after[i], name);
        }
      }
    }
  };
  
  Ember.DAG = DAG;
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-application
  */
  
  var get = Ember.get,
      classify = Ember.String.classify,
      capitalize = Ember.String.capitalize,
      decamelize = Ember.String.decamelize;
  
  /**
    The DefaultResolver defines the default lookup rules to resolve
    container lookups before consulting the container for registered
    items:
  
    * templates are looked up on `Ember.TEMPLATES`
    * other names are looked up on the application after converting
      the name. For example, `controller:post` looks up
      `App.PostController` by default.
    * there are some nuances (see examples below)
  
    ### How Resolving Works
  
    The container calls this object's `resolve` method with the
    `fullName` argument.
  
    It first parses the fullName into an object using `parseName`.
  
    Then it checks for the presence of a type-specific instance
    method of the form `resolve[Type]` and calls it if it exists.
    For example if it was resolving 'template:post', it would call
    the `resolveTemplate` method.
  
    Its last resort is to call the `resolveOther` method.
  
    The methods of this object are designed to be easy to override
    in a subclass. For example, you could enhance how a template
    is resolved like so:
  
    ```javascript
    App = Ember.Application.create({
      resolver: Ember.DefaultResolver.extend({
        resolveTemplate: function(parsedName) {
          var resolvedTemplate = this._super(parsedName);
          if (resolvedTemplate) { return resolvedTemplate; }
          return Ember.TEMPLATES['not_found'];
        }
      })
    });
    ```
  
    Some examples of how names are resolved:
  
    ```
    'template:post' //=> Ember.TEMPLATES['post']
    'template:posts/byline' //=> Ember.TEMPLATES['posts/byline']
    'template:posts.byline' //=> Ember.TEMPLATES['posts/byline']
    'template:blogPost' //=> Ember.TEMPLATES['blogPost']
                        //   OR
                        //   Ember.TEMPLATES['blog_post']
    'controller:post' //=> App.PostController
    'controller:posts.index' //=> App.PostsIndexController
    'controller:blog/post' //=> Blog.PostController
    'controller:basic' //=> Ember.Controller
    'route:post' //=> App.PostRoute
    'route:posts.index' //=> App.PostsIndexRoute
    'route:blog/post' //=> Blog.PostRoute
    'route:basic' //=> Ember.Route
    'view:post' //=> App.PostView
    'view:posts.index' //=> App.PostsIndexView
    'view:blog/post' //=> Blog.PostView
    'view:basic' //=> Ember.View
    'foo:post' //=> App.PostFoo
    ```
  
    @class DefaultResolver
    @namespace Ember
    @extends Ember.Object
  */
  Ember.DefaultResolver = Ember.Object.extend({
    /**
      This will be set to the Application instance when it is
      created.
  
      @property namespace
    */
    namespace: null,
    /**
      This method is called via the container's resolver method.
      It parses the provided `fullName` and then looks up and
      returns the appropriate template or class.
  
      @method resolve
      @param {String} fullName the lookup string
      @return {Object} the resolved factory
    */
    resolve: function(fullName) {
      var parsedName = this.parseName(fullName),
          typeSpecificResolveMethod = this[parsedName.resolveMethodName];
      if (typeSpecificResolveMethod) {
        var resolved = typeSpecificResolveMethod.call(this, parsedName);
        if (resolved) { return resolved; }
      }
      return this.resolveOther(parsedName);
    },
    /**
      Convert the string name of the form "type:name" to
      a Javascript object with the parsed aspects of the name
      broken out.
  
      @protected
      @method parseName
    */
    parseName: function(fullName) {
      var nameParts = fullName.split(":"),
          type = nameParts[0], fullNameWithoutType = nameParts[1],
          name = fullNameWithoutType,
          namespace = get(this, 'namespace'),
          root = namespace;
  
      if (type !== 'template' && name.indexOf('/') !== -1) {
        var parts = name.split('/');
        name = parts[parts.length - 1];
        var namespaceName = capitalize(parts.slice(0, -1).join('.'));
        root = Ember.Namespace.byName(namespaceName);
  
        Ember.assert('You are looking for a ' + name + ' ' + type + ' in the ' + namespaceName + ' namespace, but the namespace could not be found', root);
      }
  
      return {
        fullName: fullName,
        type: type,
        fullNameWithoutType: fullNameWithoutType,
        name: name,
        root: root,
        resolveMethodName: "resolve" + classify(type)
      };
    },
    /**
      Look up the template in Ember.TEMPLATES
  
      @protected
      @method resolveTemplate
    */
    resolveTemplate: function(parsedName) {
      var templateName = parsedName.fullNameWithoutType.replace(/\./g, '/');
  
      if (Ember.TEMPLATES[templateName]) {
        return Ember.TEMPLATES[templateName];
      }
  
      templateName = decamelize(templateName);
      if (Ember.TEMPLATES[templateName]) {
        return Ember.TEMPLATES[templateName];
      }
    },
    /**
      Given a parseName object (output from `parseName`), apply
      the conventions expected by `Ember.Router`
  
      @protected
      @method useRouterNaming
    */
    useRouterNaming: function(parsedName) {
      parsedName.name = parsedName.name.replace(/\./g, '_');
      if (parsedName.name === 'basic') {
        parsedName.name = '';
      }
    },
    /**
      @protected
      @method resolveController
    */
    resolveController: function(parsedName) {
      this.useRouterNaming(parsedName);
      return this.resolveOther(parsedName);
    },
    /**
      @protected
      @method resolveRoute
    */
    resolveRoute: function(parsedName) {
      this.useRouterNaming(parsedName);
      return this.resolveOther(parsedName);
    },
    /**
      @protected
      @method resolveView
    */
    resolveView: function(parsedName) {
      this.useRouterNaming(parsedName);
      return this.resolveOther(parsedName);
    },
    /**
      Look up the specified object (from parsedName) on the appropriate
      namespace (usually on the Application)
  
      @protected
      @method resolveOther
    */
    resolveOther: function(parsedName) {
      var className = classify(parsedName.name) + classify(parsedName.type),
          factory = get(parsedName.root, className);
      if (factory) { return factory; }
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-application
  */
  
  var get = Ember.get, set = Ember.set;
  
  function DeprecatedContainer(container) {
    this._container = container;
  }
  
  DeprecatedContainer.deprecate = function(method) {
    return function() {
      var container = this._container;
  
      Ember.deprecate('Using the defaultContainer is no longer supported. [defaultContainer#' + method + '] see: http://git.io/EKPpnA', false);
      return container[method].apply(container, arguments);
    };
  };
  
  DeprecatedContainer.prototype = {
    _container: null,
    lookup: DeprecatedContainer.deprecate('lookup'),
    resolve: DeprecatedContainer.deprecate('resolve'),
    register: DeprecatedContainer.deprecate('register')
  };
  
  /**
    An instance of `Ember.Application` is the starting point for every Ember
    application. It helps to instantiate, initialize and coordinate the many
    objects that make up your app.
  
    Each Ember app has one and only one `Ember.Application` object. In fact, the
    very first thing you should do in your application is create the instance:
  
    ```javascript
    window.App = Ember.Application.create();
    ```
  
    Typically, the application object is the only global variable. All other
    classes in your app should be properties on the `Ember.Application` instance,
    which highlights its first role: a global namespace.
  
    For example, if you define a view class, it might look like this:
  
    ```javascript
    App.MyView = Ember.View.extend();
    ```
  
    By default, calling `Ember.Application.create()` will automatically initialize
    your application by calling the `Ember.Application.initialize()` method. If
    you need to delay initialization, you can call your app's `deferReadiness()`
    method. When you are ready for your app to be initialized, call its
    `advanceReadiness()` method.
  
    You can define a `ready` method on the `Ember.Application` instance, which
    will be run by Ember when the application is initialized.
  
    Because `Ember.Application` inherits from `Ember.Namespace`, any classes
    you create will have useful string representations when calling `toString()`.
    See the `Ember.Namespace` documentation for more information.
  
    While you can think of your `Ember.Application` as a container that holds the
    other classes in your application, there are several other responsibilities
    going on under-the-hood that you may want to understand.
  
    ### Event Delegation
  
    Ember uses a technique called _event delegation_. This allows the framework
    to set up a global, shared event listener instead of requiring each view to
    do it manually. For example, instead of each view registering its own
    `mousedown` listener on its associated element, Ember sets up a `mousedown`
    listener on the `body`.
  
    If a `mousedown` event occurs, Ember will look at the target of the event and
    start walking up the DOM node tree, finding corresponding views and invoking
    their `mouseDown` method as it goes.
  
    `Ember.Application` has a number of default events that it listens for, as
    well as a mapping from lowercase events to camel-cased view method names. For
    example, the `keypress` event causes the `keyPress` method on the view to be
    called, the `dblclick` event causes `doubleClick` to be called, and so on.
  
    If there is a browser event that Ember does not listen for by default, you
    can specify custom events and their corresponding view method names by
    setting the application's `customEvents` property:
  
    ```javascript
    App = Ember.Application.create({
      customEvents: {
        // add support for the loadedmetadata media
        // player event
        'loadedmetadata': "loadedMetadata"
      }
    });
    ```
  
    By default, the application sets up these event listeners on the document
    body. However, in cases where you are embedding an Ember application inside
    an existing page, you may want it to set up the listeners on an element
    inside the body.
  
    For example, if only events inside a DOM element with the ID of `ember-app`
    should be delegated, set your application's `rootElement` property:
  
    ```javascript
    window.App = Ember.Application.create({
      rootElement: '#ember-app'
    });
    ```
  
    The `rootElement` can be either a DOM element or a jQuery-compatible selector
    string. Note that *views appended to the DOM outside the root element will
    not receive events.* If you specify a custom root element, make sure you only
    append views inside it!
  
    To learn more about the advantages of event delegation and the Ember view
    layer, and a list of the event listeners that are setup by default, visit the
    [Ember View Layer guide](http://emberjs.com/guides/understanding-ember/the-view-layer/#toc_event-delegation).
  
    ### Initializers
  
    Libraries on top of Ember can register additional initializers, like so:
  
    ```javascript
    Ember.Application.initializer({
      name: "store",
  
      initialize: function(container, application) {
        container.register('store:main', application.Store);
      }
    });
    ```
  
    ### Routing
  
    In addition to creating your application's router, `Ember.Application` is
    also responsible for telling the router when to start routing. Transitions
    between routes can be logged with the LOG_TRANSITIONS flag, and more
    detailed intra-transition logging can be logged with
    the LOG_TRANSITIONS_INTERNAL flag:
  
    ```javascript
    window.App = Ember.Application.create({
      LOG_TRANSITIONS: true, // basic logging of successful transitions
      LOG_TRANSITIONS_INTERNAL: true // detailed logging of all routing steps
    });
    ```
  
    By default, the router will begin trying to translate the current URL into
    application state once the browser emits the `DOMContentReady` event. If you
    need to defer routing, you can call the application's `deferReadiness()`
    method. Once routing can begin, call the `advanceReadiness()` method.
  
    If there is any setup required before routing begins, you can implement a
    `ready()` method on your app that will be invoked immediately before routing
    begins.
    ```
  
    @class Application
    @namespace Ember
    @extends Ember.Namespace
  */
  
  var Application = Ember.Application = Ember.Namespace.extend(Ember.DeferredMixin, {
  
    /**
      The root DOM element of the Application. This can be specified as an
      element or a
      [jQuery-compatible selector string](http://api.jquery.com/category/selectors/).
  
      This is the element that will be passed to the Application's,
      `eventDispatcher`, which sets up the listeners for event delegation. Every
      view in your application should be a child of the element you specify here.
  
      @property rootElement
      @type DOMElement
      @default 'body'
    */
    rootElement: 'body',
  
    /**
      The `Ember.EventDispatcher` responsible for delegating events to this
      application's views.
  
      The event dispatcher is created by the application at initialization time
      and sets up event listeners on the DOM element described by the
      application's `rootElement` property.
  
      See the documentation for `Ember.EventDispatcher` for more information.
  
      @property eventDispatcher
      @type Ember.EventDispatcher
      @default null
    */
    eventDispatcher: null,
  
    /**
      The DOM events for which the event dispatcher should listen.
  
      By default, the application's `Ember.EventDispatcher` listens
      for a set of standard DOM events, such as `mousedown` and
      `keyup`, and delegates them to your application's `Ember.View`
      instances.
  
      If you would like additional events to be delegated to your
      views, set your `Ember.Application`'s `customEvents` property
      to a hash containing the DOM event name as the key and the
      corresponding view method name as the value. For example:
  
      ```javascript
      App = Ember.Application.create({
        customEvents: {
          // add support for the loadedmetadata media
          // player event
          'loadedmetadata': "loadedMetadata"
        }
      });
      ```
  
      @property customEvents
      @type Object
      @default null
    */
    customEvents: null,
  
    // Start off the number of deferrals at 1. This will be
    // decremented by the Application's own `initialize` method.
    _readinessDeferrals: 1,
  
    init: function() {
      if (!this.$) { this.$ = Ember.$; }
      this.__container__ = this.buildContainer();
  
      this.Router = this.Router || this.defaultRouter();
      if (this.Router) { this.Router.namespace = this; }
  
      this._super();
  
      this.scheduleInitialize();
  
      if ( Ember.LOG_VERSION ) {
        Ember.LOG_VERSION = false; // we only need to see this once per Application#init
        Ember.debug('-------------------------------');
        Ember.debug('Ember.VERSION : ' + Ember.VERSION);
        Ember.debug('Handlebars.VERSION : ' + Ember.Handlebars.VERSION);
        Ember.debug('jQuery.VERSION : ' + Ember.$().jquery);
        Ember.debug('-------------------------------');
      }
    },
  
    /**
      @private
  
      Build the container for the current application.
  
      Also register a default application view in case the application
      itself does not.
  
      @method buildContainer
      @return {Ember.Container} the configured container
    */
    buildContainer: function() {
      var container = this.__container__ = Application.buildContainer(this);
  
      return container;
    },
  
    /**
      @private
  
      If the application has not opted out of routing and has not explicitly
      defined a router, supply a default router for the application author
      to configure.
  
      This allows application developers to do:
  
      ```javascript
      var App = Ember.Application.create();
  
      App.Router.map(function() {
        this.resource('posts');
      });
      ```
  
      @method defaultRouter
      @return {Ember.Router} the default router
    */
    defaultRouter: function() {
      // Create a default App.Router if one was not supplied to make
      // it possible to do App.Router.map(...) without explicitly
      // creating a router first.
      if (this.router === undefined) {
        return Ember.Router.extend();
      }
    },
  
    /**
      @private
  
      Automatically initialize the application once the DOM has
      become ready.
  
      The initialization itself is scheduled on the actions queue
      which ensures that application loading finishes before
      booting.
  
      If you are asynchronously loading code, you should call
      `deferReadiness()` to defer booting, and then call
      `advanceReadiness()` once all of your code has finished
      loading.
  
      @method scheduleInitialize
    */
    scheduleInitialize: function() {
      var self = this;
  
      if (!this.$ || this.$.isReady) {
        Ember.run.schedule('actions', self, '_initialize');
      } else {
        this.$().ready(function(){
          Ember.run(self, '_initialize');
        });
      }
    },
  
    /**
      Use this to defer readiness until some condition is true.
  
      Example:
  
      ```javascript
      App = Ember.Application.create();
      App.deferReadiness();
  
      jQuery.getJSON("/auth-token", function(token) {
        App.token = token;
        App.advanceReadiness();
      });
      ```
  
      This allows you to perform asynchronous setup logic and defer
      booting your application until the setup has finished.
  
      However, if the setup requires a loading UI, it might be better
      to use the router for this purpose.
  
      @method deferReadiness
    */
    deferReadiness: function() {
      Ember.assert("You cannot defer readiness since the `ready()` hook has already been called.", this._readinessDeferrals > 0);
      this._readinessDeferrals++;
    },
  
    /**
      @method advanceReadiness
      @see {Ember.Application#deferReadiness}
    */
    advanceReadiness: function() {
      this._readinessDeferrals--;
  
      if (this._readinessDeferrals === 0) {
        Ember.run.once(this, this.didBecomeReady);
      }
    },
  
    /**
      registers a factory for later injection
  
      Example:
  
      ```javascript
      App = Ember.Application.create();
  
      App.Person = Ember.Object.extend({});
      App.Orange = Ember.Object.extend({});
      App.Email  = Ember.Object.extend({});
  
      App.register('model:user', App.Person, {singleton: false });
      App.register('fruit:favorite', App.Orange);
      App.register('communication:main', App.Email, {singleton: false});
      ```
  
      @method register
      @param  type {String}
      @param  name {String}
      @param  factory {String}
      @param  options {String} (optional)
    **/
    register: function() {
      var container = this.__container__;
      container.register.apply(container, arguments);
    },
    /**
      defines an injection or typeInjection
  
      Example:
  
      ```javascript
      App.inject(<full_name or type>, <property name>, <full_name>)
      App.inject('model:user', 'email', 'model:email')
      App.inject('model', 'source', 'source:main')
      ```
  
      @method inject
      @param  factoryNameOrType {String}
      @param  property {String}
      @param  injectionName {String}
    **/
    inject: function(){
      var container = this.__container__;
      container.injection.apply(container, arguments);
    },
  
    /**
      @private
      @deprecated
  
      Calling initialize manually is not supported.
  
      Please see Ember.Application#advanceReadiness and
      Ember.Application#deferReadiness.
  
      @method initialize
     **/
    initialize: function(){
      Ember.deprecate('Calling initialize manually is not supported. Please see Ember.Application#advanceReadiness and Ember.Application#deferReadiness');
    },
    /**
      @private
  
      Initialize the application. This happens automatically.
  
      Run any initializers and run the application load hook. These hooks may
      choose to defer readiness. For example, an authentication hook might want
      to defer readiness until the auth token has been retrieved.
  
      @method _initialize
    */
    _initialize: function() {
      if (this.isDestroyed) { return; }
  
      // At this point, the App.Router must already be assigned
      this.register('router:main', this.Router);
  
      this.runInitializers();
      Ember.runLoadHooks('application', this);
  
      // At this point, any initializers or load hooks that would have wanted
      // to defer readiness have fired. In general, advancing readiness here
      // will proceed to didBecomeReady.
      this.advanceReadiness();
  
      return this;
    },
  
    /**
      Reset the application. This is typically used only in tests. It cleans up
      the application in the following order:
  
      1. Deactivate existing routes
      2. Destroy all objects in the container
      3. Create a new application container
      4. Re-route to the existing url
  
      Typical Example:
  
      ```javascript
  
      var App;
  
      Ember.run(function(){
        App = Ember.Application.create();
      });
  
      module("acceptance test", {
        setup: function() {
          App.reset();
        }
      });
  
      test("first test", function(){
        // App is freshly reset
      });
  
      test("first test", function(){
        // App is again freshly reset
      });
      ```
  
      Advanced Example:
  
      Occasionally you may want to prevent the app from initializing during
      setup. This could enable extra configuration, or enable asserting prior
      to the app becoming ready.
  
      ```javascript
  
      var App;
  
      Ember.run(function(){
        App = Ember.Application.create();
      });
  
      module("acceptance test", {
        setup: function() {
          Ember.run(function() {
            App.reset();
            App.deferReadiness();
          });
        }
      });
  
      test("first test", function(){
        ok(true, 'something before app is initialized');
  
        Ember.run(function(){
          App.advanceReadiness();
        });
        ok(true, 'something after app is initialized');
      });
      ```
  
      @method reset
    **/
    reset: function() {
      this._readinessDeferrals = 1;
  
      function handleReset() {
        var router = this.__container__.lookup('router:main');
        router.reset();
  
        Ember.run(this.__container__, 'destroy');
  
        this.buildContainer();
  
        Ember.run.schedule('actions', this, function(){
          this._initialize();
          this.startRouting();
        });
      }
  
      Ember.run.join(this, handleReset);
    },
  
    /**
      @private
      @method runInitializers
    */
    runInitializers: function() {
      var initializers = get(this.constructor, 'initializers'),
          container = this.__container__,
          graph = new Ember.DAG(),
          namespace = this,
          i, initializer;
  
      for (i=0; i<initializers.length; i++) {
        initializer = initializers[i];
        graph.addEdges(initializer.name, initializer.initialize, initializer.before, initializer.after);
      }
  
      graph.topsort(function (vertex) {
        var initializer = vertex.value;
        Ember.assert("No application initializer named '"+vertex.name+"'", initializer);
        initializer(container, namespace);
      });
    },
  
    /**
      @private
      @method didBecomeReady
    */
    didBecomeReady: function() {
      this.setupEventDispatcher();
      this.ready(); // user hook
      this.startRouting();
  
      if (!Ember.testing) {
        // Eagerly name all classes that are already loaded
        Ember.Namespace.processAll();
        Ember.BOOTED = true;
      }
  
      this.resolve(this);
    },
  
    /**
      @private
  
      Setup up the event dispatcher to receive events on the
      application's `rootElement` with any registered
      `customEvents`.
  
      @method setupEventDispatcher
    */
    setupEventDispatcher: function() {
      var customEvents = get(this, 'customEvents'),
          rootElement = get(this, 'rootElement'),
          dispatcher = this.__container__.lookup('event_dispatcher:main');
  
      set(this, 'eventDispatcher', dispatcher);
      dispatcher.setup(customEvents, rootElement);
    },
  
    /**
      @private
  
      If the application has a router, use it to route to the current URL, and
      trigger a new call to `route` whenever the URL changes.
  
      @method startRouting
      @property router {Ember.Router}
    */
    startRouting: function() {
      var router = this.__container__.lookup('router:main');
      if (!router) { return; }
  
      router.startRouting();
    },
  
    handleURL: function(url) {
      var router = this.__container__.lookup('router:main');
  
      router.handleURL(url);
    },
  
    /**
      Called when the Application has become ready.
      The call will be delayed until the DOM has become ready.
  
      @event ready
    */
    ready: Ember.K,
  
    /**
      Set this to provide an alternate class to `Ember.DefaultResolver`
  
      @property resolver
    */
    resolver: null,
  
    willDestroy: function() {
      Ember.BOOTED = false;
  
      this.__container__.destroy();
    },
  
    initializer: function(options) {
      this.constructor.initializer(options);
    }
  });
  
  Ember.Application.reopenClass({
    concatenatedProperties: ['initializers'],
    initializers: Ember.A(),
    initializer: function(initializer) {
      var initializers = get(this, 'initializers');
  
      Ember.assert("The initializer '" + initializer.name + "' has already been registered", !initializers.findProperty('name', initializers.name));
      Ember.assert("An injection cannot be registered with both a before and an after", !(initializer.before && initializer.after));
      Ember.assert("An injection cannot be registered without an injection function", Ember.canInvoke(initializer, 'initialize'));
  
      initializers.push(initializer);
    },
  
    /**
      @private
  
      This creates a container with the default Ember naming conventions.
  
      It also configures the container:
  
      * registered views are created every time they are looked up (they are
        not singletons)
      * registered templates are not factories; the registered value is
        returned directly.
      * the router receives the application as its `namespace` property
      * all controllers receive the router as their `target` and `controllers`
        properties
      * all controllers receive the application as their `namespace` property
      * the application view receives the application controller as its
        `controller` property
      * the application view receives the application template as its
        `defaultTemplate` property
  
      @method buildContainer
      @static
      @param {Ember.Application} namespace the application to build the
        container for.
      @return {Ember.Container} the built container
    */
    buildContainer: function(namespace) {
      var container = new Ember.Container();
  
      Ember.Container.defaultContainer = new DeprecatedContainer(container);
  
      container.set = Ember.set;
      container.normalize = normalize;
      container.resolver = resolverFor(namespace);
      container.optionsForType('view', { singleton: false });
      container.optionsForType('template', { instantiate: false });
      container.register('application:main', namespace, { instantiate: false });
  
      container.register('controller:basic', Ember.Controller, { instantiate: false });
      container.register('controller:object', Ember.ObjectController, { instantiate: false });
      container.register('controller:array', Ember.ArrayController, { instantiate: false });
      container.register('route:basic', Ember.Route, { instantiate: false });
      container.register('event_dispatcher:main', Ember.EventDispatcher);
  
      container.injection('router:main', 'namespace', 'application:main');
  
      container.injection('controller', 'target', 'router:main');
      container.injection('controller', 'namespace', 'application:main');
  
      container.injection('route', 'router', 'router:main');
  
      return container;
    }
  });
  
  /**
    @private
  
    This function defines the default lookup rules for container lookups:
  
    * templates are looked up on `Ember.TEMPLATES`
    * other names are looked up on the application after classifying the name.
      For example, `controller:post` looks up `App.PostController` by default.
    * if the default lookup fails, look for registered classes on the container
  
    This allows the application to register default injections in the container
    that could be overridden by the normal naming convention.
  
    @method resolverFor
    @param {Ember.Namespace} namespace the namespace to look for classes
    @return {*} the resolved value for a given lookup
  */
  function resolverFor(namespace) {
    var resolverClass = namespace.get('resolver') || Ember.DefaultResolver;
    var resolver = resolverClass.create({
      namespace: namespace
    });
    return function(fullName) {
      return resolver.resolve(fullName);
    };
  }
  
  function normalize(fullName) {
    var split = fullName.split(':', 2),
        type = split[0],
        name = split[1];
  
    Ember.assert("Tried to normalize a container name without a colon (:) in it. You probably tried to lookup a name that did not contain a type, a colon, and a name. A proper lookup name would be `view:post`.", split.length === 2);
  
    if (type !== 'template') {
      var result = name;
  
      if (result.indexOf('.') > -1) {
        result = result.replace(/\.(.)/g, function(m) { return m.charAt(1).toUpperCase(); });
      }
  
      if (name.indexOf('_') > -1) {
        result = result.replace(/_(.)/g, function(m) { return m.charAt(1).toUpperCase(); });
      }
  
      return type + ':' + result;
    } else {
      return fullName;
    }
  }
  
  Ember.runLoadHooks('Ember.Application', Ember.Application);
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-application
  */
  
  var get = Ember.get, set = Ember.set;
  var ControllersProxy = Ember.Object.extend({
    controller: null,
  
    unknownProperty: function(controllerName) {
      var controller = get(this, 'controller'),
        needs = get(controller, 'needs'),
        container = controller.get('container'),
        dependency;
  
      for (var i=0, l=needs.length; i<l; i++) {
        dependency = needs[i];
        if (dependency === controllerName) {
          return container.lookup('controller:' + controllerName);
        }
      }
    }
  });
  
  function verifyDependencies(controller) {
    var needs = get(controller, 'needs'),
        container = get(controller, 'container'),
        dependency, satisfied = true;
  
    for (var i=0, l=needs.length; i<l; i++) {
      dependency = needs[i];
      if (dependency.indexOf(':') === -1) {
        dependency = "controller:" + dependency;
      }
  
      if (!container.has(dependency)) {
        satisfied = false;
        Ember.assert(controller + " needs " + dependency + " but it does not exist", false);
      }
    }
  
    return satisfied;
  }
  
  Ember.ControllerMixin.reopen({
    concatenatedProperties: ['needs'],
  
    /**
      An array of other controller objects available inside
      instances of this controller via the `controllers`
      property:
  
      For example, when you define a controller:
  
      ```javascript
      App.CommentsController = Ember.ArrayController.extend({
        needs: ['post']
      });
      ```
  
      The application's single instance of these other
      controllers are accessible by name through the
      `controllers` property:
  
      ```javascript
      this.get('controllers.post'); // instance of App.PostController
      ```
  
      This is only available for singleton controllers.
  
      @property {Array} needs
      @default []
    */
    needs: [],
  
    init: function() {
      this._super.apply(this, arguments);
  
      // Structure asserts to still do verification but not string concat in production
      if(!verifyDependencies(this)) {
        Ember.assert("Missing dependencies", false);
      }
    },
  
    controllerFor: function(controllerName) {
      Ember.deprecate("Controller#controllerFor is deprecated, please use Controller#needs instead");
      var container = get(this, 'container');
      return container.lookup('controller:' + controllerName);
    },
  
    controllers: Ember.computed(function() {
      return ControllersProxy.create({ controller: this });
    })
  });
  
  })();
  
  
  
  (function() {
  
  })();
  
  
  
  (function() {
  /**
  Ember Application
  
  @module ember
  @submodule ember-application
  @requires ember-views, ember-states, ember-routing
  */
  
  })();
  
  (function() {
  var get = Ember.get, set = Ember.set;
  
  /**
  @module ember
  @submodule ember-states
  */
  
  /**
    @class State
    @namespace Ember
    @extends Ember.Object
    @uses Ember.Evented
  */
  Ember.State = Ember.Object.extend(Ember.Evented,
  /** @scope Ember.State.prototype */{
    /**
      A reference to the parent state.
  
      @property parentState
      @type Ember.State
    */
    parentState: null,
    start: null,
  
    /**
      The name of this state.
  
      @property name
      @type String
    */
    name: null,
  
    /**
      The full path to this state.
  
      @property path
      @type String
    */
    path: Ember.computed(function() {
      var parentPath = get(this, 'parentState.path'),
          path = get(this, 'name');
  
      if (parentPath) {
        path = parentPath + '.' + path;
      }
  
      return path;
    }),
  
    /**
      @private
  
      Override the default event firing from `Ember.Evented` to
      also call methods with the given name.
  
      @method trigger
      @param name
    */
    trigger: function(name) {
      if (this[name]) {
        this[name].apply(this, [].slice.call(arguments, 1));
      }
      this._super.apply(this, arguments);
    },
  
    init: function() {
      var states = get(this, 'states');
      set(this, 'childStates', Ember.A());
      set(this, 'eventTransitions', get(this, 'eventTransitions') || {});
  
      var name, value, transitionTarget;
  
      // As a convenience, loop over the properties
      // of this state and look for any that are other
      // Ember.State instances or classes, and move them
      // to the `states` hash. This avoids having to
      // create an explicit separate hash.
  
      if (!states) {
        states = {};
  
        for (name in this) {
          if (name === "constructor") { continue; }
  
          if (value = this[name]) {
            if (transitionTarget = value.transitionTarget) {
              this.eventTransitions[name] = transitionTarget;
            }
  
            this.setupChild(states, name, value);
          }
        }
  
        set(this, 'states', states);
      } else {
        for (name in states) {
          this.setupChild(states, name, states[name]);
        }
      }
  
      // pathsCaches is a nested hash of the form:
      //   pathsCaches[stateManagerTypeGuid][path] == transitions_hash
      set(this, 'pathsCaches', {});
    },
  
    setPathsCache: function(stateManager, path, transitions) {
      var stateManagerTypeGuid = Ember.guidFor(stateManager.constructor),
        pathsCaches = get(this, 'pathsCaches'),
        pathsCacheForManager = pathsCaches[stateManagerTypeGuid] || {};
  
      pathsCacheForManager[path] = transitions;
      pathsCaches[stateManagerTypeGuid] = pathsCacheForManager;
    },
  
    getPathsCache: function(stateManager, path) {
      var stateManagerTypeGuid = Ember.guidFor(stateManager.constructor),
        pathsCaches = get(this, 'pathsCaches'),
        pathsCacheForManager = pathsCaches[stateManagerTypeGuid] || {};
  
      return pathsCacheForManager[path];
    },
  
    setupChild: function(states, name, value) {
      if (!value) { return false; }
      var instance;
  
      if (value instanceof Ember.State) {
        set(value, 'name', name);
        instance = value;
        instance.container = this.container;
      } else if (Ember.State.detect(value)) {
        instance = value.create({
          name: name,
          container: this.container
        });
      }
  
      if (instance instanceof Ember.State) {
        set(instance, 'parentState', this);
        get(this, 'childStates').pushObject(instance);
        states[name] = instance;
        return instance;
      }
    },
  
    lookupEventTransition: function(name) {
      var path, state = this;
  
      while(state && !path) {
        path = state.eventTransitions[name];
        state = state.get('parentState');
      }
  
      return path;
    },
  
    /**
      A Boolean value indicating whether the state is a leaf state
      in the state hierarchy. This is `false` if the state has child
      states; otherwise it is true.
  
      @property isLeaf
      @type Boolean
    */
    isLeaf: Ember.computed(function() {
      return !get(this, 'childStates').length;
    }),
  
    /**
      A boolean value indicating whether the state takes a context.
      By default we assume all states take contexts.
  
      @property hasContext
      @default true
    */
    hasContext: true,
  
    /**
      This is the default transition event.
  
      @event setup
      @param {Ember.StateManager} manager
      @param context
      @see Ember.StateManager#transitionEvent
    */
    setup: Ember.K,
  
    /**
      This event fires when the state is entered.
  
      @event enter
      @param {Ember.StateManager} manager
    */
    enter: Ember.K,
  
    /**
      This event fires when the state is exited.
  
      @event exit
      @param {Ember.StateManager} manager
    */
    exit: Ember.K
  });
  
  Ember.State.reopenClass({
  
    /**
      Creates an action function for transitioning to the named state while
      preserving context.
  
      The following example StateManagers are equivalent:
  
      ```javascript
      aManager = Ember.StateManager.create({
        stateOne: Ember.State.create({
          changeToStateTwo: Ember.State.transitionTo('stateTwo')
        }),
        stateTwo: Ember.State.create({})
      })
  
      bManager = Ember.StateManager.create({
        stateOne: Ember.State.create({
          changeToStateTwo: function(manager, context){
            manager.transitionTo('stateTwo', context)
          }
        }),
        stateTwo: Ember.State.create({})
      })
      ```
  
      @method transitionTo
      @static
      @param {String} target
    */
  
    transitionTo: function(target) {
  
      var transitionFunction = function(stateManager, contextOrEvent) {
        var contexts = [],
            Event = Ember.$ && Ember.$.Event;
  
        if (contextOrEvent && (Event && contextOrEvent instanceof Event)) {
          if (contextOrEvent.hasOwnProperty('contexts')) {
            contexts = contextOrEvent.contexts.slice();
          }
        }
        else {
          contexts = [].slice.call(arguments, 1);
        }
  
        contexts.unshift(target);
        stateManager.transitionTo.apply(stateManager, contexts);
      };
  
      transitionFunction.transitionTarget = target;
  
      return transitionFunction;
    }
  
  });
  
  })();
  
  
  
  (function() {
  /**
  @module ember
  @submodule ember-states
  */
  
  var get = Ember.get, set = Ember.set, fmt = Ember.String.fmt;
  var arrayForEach = Ember.ArrayPolyfills.forEach;
  /**
    A Transition takes the enter, exit and resolve states and normalizes
    them:
  
    * takes any passed in contexts into consideration
    * adds in `initialState`s
  
    @class Transition
    @private
  */
  var Transition = function(raw) {
    this.enterStates = raw.enterStates.slice();
    this.exitStates = raw.exitStates.slice();
    this.resolveState = raw.resolveState;
  
    this.finalState = raw.enterStates[raw.enterStates.length - 1] || raw.resolveState;
  };
  
  Transition.prototype = {
    /**
      Normalize the passed in enter, exit and resolve states.
  
      This process also adds `finalState` and `contexts` to the Transition object.
  
      @method normalize
      @param {Ember.StateManager} manager the state manager running the transition
      @param {Array} contexts a list of contexts passed into `transitionTo`
    */
    normalize: function(manager, contexts) {
      this.matchContextsToStates(contexts);
      this.addInitialStates();
      this.removeUnchangedContexts(manager);
      return this;
    },
  
    /**
      Match each of the contexts passed to `transitionTo` to a state.
      This process may also require adding additional enter and exit
      states if there are more contexts than enter states.
  
      @method matchContextsToStates
      @param {Array} contexts a list of contexts passed into `transitionTo`
    */
    matchContextsToStates: function(contexts) {
      var stateIdx = this.enterStates.length - 1,
          matchedContexts = [],
          state,
          context;
  
      // Next, we will match the passed in contexts to the states they
      // represent.
      //
      // First, assign a context to each enter state in reverse order. If
      // any contexts are left, add a parent state to the list of states
      // to enter and exit, and assign a context to the parent state.
      //
      // If there are still contexts left when the state manager is
      // reached, raise an exception.
      //
      // This allows the following:
      //
      // |- root
      // | |- post
      // | | |- comments
      // | |- about (* current state)
      //
      // For `transitionTo('post.comments', post, post.get('comments')`,
      // the first context (`post`) will be assigned to `root.post`, and
      // the second context (`post.get('comments')`) will be assigned
      // to `root.post.comments`.
      //
      // For the following:
      //
      // |- root
      // | |- post
      // | | |- index (* current state)
      // | | |- comments
      //
      // For `transitionTo('post.comments', otherPost, otherPost.get('comments')`,
      // the `<root.post>` state will be added to the list of enter and exit
      // states because its context has changed.
  
      while (contexts.length > 0) {
        if (stateIdx >= 0) {
          state = this.enterStates[stateIdx--];
        } else {
          if (this.enterStates.length) {
            state = get(this.enterStates[0], 'parentState');
            if (!state) { throw "Cannot match all contexts to states"; }
          } else {
            // If re-entering the current state with a context, the resolve
            // state will be the current state.
            state = this.resolveState;
          }
  
          this.enterStates.unshift(state);
          this.exitStates.unshift(state);
        }
  
        // in routers, only states with dynamic segments have a context
        if (get(state, 'hasContext')) {
          context = contexts.pop();
        } else {
          context = null;
        }
  
        matchedContexts.unshift(context);
      }
  
      this.contexts = matchedContexts;
    },
  
    /**
      Add any `initialState`s to the list of enter states.
  
      @method addInitialStates
    */
    addInitialStates: function() {
      var finalState = this.finalState, initialState;
  
      while(true) {
        initialState = get(finalState, 'initialState') || 'start';
        finalState = get(finalState, 'states.' + initialState);
  
        if (!finalState) { break; }
  
        this.finalState = finalState;
        this.enterStates.push(finalState);
        this.contexts.push(undefined);
      }
    },
  
    /**
      Remove any states that were added because the number of contexts
      exceeded the number of explicit enter states, but the context has
      not changed since the last time the state was entered.
  
      @method removeUnchangedContexts
      @param {Ember.StateManager} manager passed in to look up the last
        context for a states
    */
    removeUnchangedContexts: function(manager) {
      // Start from the beginning of the enter states. If the state was added
      // to the list during the context matching phase, make sure the context
      // has actually changed since the last time the state was entered.
      while (this.enterStates.length > 0) {
        if (this.enterStates[0] !== this.exitStates[0]) { break; }
  
        if (this.enterStates.length === this.contexts.length) {
          if (manager.getStateMeta(this.enterStates[0], 'context') !== this.contexts[0]) { break; }
          this.contexts.shift();
        }
  
        this.resolveState = this.enterStates.shift();
        this.exitStates.shift();
      }
    }
  };
  
  var sendRecursively = function(event, currentState, isUnhandledPass) {
    var log = this.enableLogging,
        eventName = isUnhandledPass ? 'unhandledEvent' : event,
        action = currentState[eventName],
        contexts, sendRecursiveArguments, actionArguments;
  
    contexts = [].slice.call(arguments, 3);
  
    // Test to see if the action is a method that
    // can be invoked. Don't blindly check just for
    // existence, because it is possible the state
    // manager has a child state of the given name,
    // and we should still raise an exception in that
    // case.
    if (typeof action === 'function') {
      if (log) {
        if (isUnhandledPass) {
          Ember.Logger.log(fmt("STATEMANAGER: Unhandled event '%@' being sent to state %@.", [event, get(currentState, 'path')]));
        } else {
          Ember.Logger.log(fmt("STATEMANAGER: Sending event '%@' to state %@.", [event, get(currentState, 'path')]));
        }
      }
  
      actionArguments = contexts;
      if (isUnhandledPass) {
        actionArguments.unshift(event);
      }
      actionArguments.unshift(this);
  
      return action.apply(currentState, actionArguments);
    } else {
      var parentState = get(currentState, 'parentState');
      if (parentState) {
  
        sendRecursiveArguments = contexts;
        sendRecursiveArguments.unshift(event, parentState, isUnhandledPass);
  
        return sendRecursively.apply(this, sendRecursiveArguments);
      } else if (!isUnhandledPass) {
        return sendEvent.call(this, event, contexts, true);
      }
    }
  };
  
  var sendEvent = function(eventName, sendRecursiveArguments, isUnhandledPass) {
    sendRecursiveArguments.unshift(eventName, get(this, 'currentState'), isUnhandledPass);
    return sendRecursively.apply(this, sendRecursiveArguments);
  };
  
  /**
    StateManager is part of Ember's implementation of a finite state machine. A
    StateManager instance manages a number of properties that are instances of
    `Ember.State`,
    tracks the current active state, and triggers callbacks when states have changed.
  
    ## Defining States
  
    The states of StateManager can be declared in one of two ways. First, you can
    define a `states` property that contains all the states:
  
    ```javascript
    managerA = Ember.StateManager.create({
      states: {
        stateOne: Ember.State.create(),
        stateTwo: Ember.State.create()
      }
    })
  
    managerA.get('states')
    // {
    //   stateOne: Ember.State.create(),
    //   stateTwo: Ember.State.create()
    // }
    ```
  
    You can also add instances of `Ember.State` (or an `Ember.State` subclass)
    directly as properties of a StateManager. These states will be collected into
    the `states` property for you.
  
    ```javascript
    managerA = Ember.StateManager.create({
      stateOne: Ember.State.create(),
      stateTwo: Ember.State.create()
    })
  
    managerA.get('states')
    // {
    //   stateOne: Ember.State.create(),
    //   stateTwo: Ember.State.create()
    // }
    ```
  
    ## The Initial State
  
    When created a StateManager instance will immediately enter into the state
    defined as its `start` property or the state referenced by name in its
    `initialState` property:
  
    ```javascript
    managerA = Ember.StateManager.create({
      start: Ember.State.create({})
    })
  
    managerA.get('currentState.name') // 'start'
  
    managerB = Ember.StateManager.create({
      initialState: 'beginHere',
      beginHere: Ember.State.create({})
    })
  
    managerB.get('currentState.name') // 'beginHere'
    ```
  
    Because it is a property you may also provide a computed function if you wish
    to derive an `initialState` programmatically:
  
    ```javascript
    managerC = Ember.StateManager.create({
      initialState: function(){
        if (someLogic) {
          return 'active';
        } else {
          return 'passive';
        }
      }.property(),
      active: Ember.State.create({}),
      passive: Ember.State.create({})
    })
    ```
  
    ## Moving Between States
  
    A StateManager can have any number of `Ember.State` objects as properties
    and can have a single one of these states as its current state.
  
    Calling `transitionTo` transitions between states:
  
    ```javascript
    robotManager = Ember.StateManager.create({
      initialState: 'poweredDown',
      poweredDown: Ember.State.create({}),
      poweredUp: Ember.State.create({})
    })
  
    robotManager.get('currentState.name') // 'poweredDown'
    robotManager.transitionTo('poweredUp')
    robotManager.get('currentState.name') // 'poweredUp'
    ```
  
    Before transitioning into a new state the existing `currentState` will have
    its `exit` method called with the StateManager instance as its first argument
    and an object representing the transition as its second argument.
  
    After transitioning into a new state the new `currentState` will have its
    `enter` method called with the StateManager instance as its first argument
    and an object representing the transition as its second argument.
  
    ```javascript
    robotManager = Ember.StateManager.create({
      initialState: 'poweredDown',
      poweredDown: Ember.State.create({
        exit: function(stateManager){
          console.log("exiting the poweredDown state")
        }
      }),
      poweredUp: Ember.State.create({
        enter: function(stateManager){
          console.log("entering the poweredUp state. Destroy all humans.")
        }
      })
    })
  
    robotManager.get('currentState.name') // 'poweredDown'
    robotManager.transitionTo('poweredUp')
  
    // will log
    // 'exiting the poweredDown state'
    // 'entering the poweredUp state. Destroy all humans.'
    ```
  
    Once a StateManager is already in a state, subsequent attempts to enter that
    state will not trigger enter or exit method calls. Attempts to transition
    into a state that the manager does not have will result in no changes in the
    StateManager's current state:
  
    ```javascript
    robotManager = Ember.StateManager.create({
      initialState: 'poweredDown',
      poweredDown: Ember.State.create({
        exit: function(stateManager){
          console.log("exiting the poweredDown state")
        }
      }),
      poweredUp: Ember.State.create({
        enter: function(stateManager){
          console.log("entering the poweredUp state. Destroy all humans.")
        }
      })
    })
  
    robotManager.get('currentState.name') // 'poweredDown'
    robotManager.transitionTo('poweredUp')
    // will log
    // 'exiting the poweredDown state'
    // 'entering the poweredUp state. Destroy all humans.'
    robotManager.transitionTo('poweredUp') // no logging, no state change
  
    robotManager.transitionTo('someUnknownState') // silently fails
    robotManager.get('currentState.name') // 'poweredUp'
    ```
  
    Each state property may itself contain properties that are instances of
    `Ember.State`. The StateManager can transition to specific sub-states in a
    series of transitionTo method calls or via a single transitionTo with the
    full path to the specific state. The StateManager will also keep track of the
    full path to its currentState
  
    ```javascript
    robotManager = Ember.StateManager.create({
      initialState: 'poweredDown',
      poweredDown: Ember.State.create({
        charging: Ember.State.create(),
        charged: Ember.State.create()
      }),
      poweredUp: Ember.State.create({
        mobile: Ember.State.create(),
        stationary: Ember.State.create()
      })
    })
  
    robotManager.get('currentState.name') // 'poweredDown'
  
    robotManager.transitionTo('poweredUp')
    robotManager.get('currentState.name') // 'poweredUp'
  
    robotManager.transitionTo('mobile')
    robotManager.get('currentState.name') // 'mobile'
  
    // transition via a state path
    robotManager.transitionTo('poweredDown.charging')
    robotManager.get('currentState.name') // 'charging'
  
    robotManager.get('currentState.path') // 'poweredDown.charging'
    ```
  
    Enter transition methods will be called for each state and nested child state
    in their hierarchical order. Exit methods will be called for each state and
    its nested states in reverse hierarchical order.
  
    Exit transitions for a parent state are not called when entering into one of
    its child states, only when transitioning to a new section of possible states
    in the hierarchy.
  
    ```javascript
    robotManager = Ember.StateManager.create({
      initialState: 'poweredDown',
      poweredDown: Ember.State.create({
        enter: function(){},
        exit: function(){
          console.log("exited poweredDown state")
        },
        charging: Ember.State.create({
          enter: function(){},
          exit: function(){}
        }),
        charged: Ember.State.create({
          enter: function(){
            console.log("entered charged state")
          },
          exit: function(){
            console.log("exited charged state")
          }
        })
      }),
      poweredUp: Ember.State.create({
        enter: function(){
          console.log("entered poweredUp state")
        },
        exit: function(){},
        mobile: Ember.State.create({
          enter: function(){
            console.log("entered mobile state")
          },
          exit: function(){}
        }),
        stationary: Ember.State.create({
          enter: function(){},
          exit: function(){}
        })
      })
    })
  
  
    robotManager.get('currentState.path') // 'poweredDown'
    robotManager.transitionTo('charged')
    // logs 'entered charged state'
    // but does *not* log  'exited poweredDown state'
    robotManager.get('currentState.name') // 'charged
  
    robotManager.transitionTo('poweredUp.mobile')
    // logs
    // 'exited charged state'
    // 'exited poweredDown state'
    // 'entered poweredUp state'
    // 'entered mobile state'
    ```
  
    During development you can set a StateManager's `enableLogging` property to
    `true` to receive console messages of state transitions.
  
    ```javascript
    robotManager = Ember.StateManager.create({
      enableLogging: true
    })
    ```
  
    ## Managing currentState with Actions
  
    To control which transitions are possible for a given state, and
    appropriately handle external events, the StateManager can receive and
    route action messages to its states via the `send` method. Calling to
    `send` with an action name will begin searching for a method with the same
    name starting at the current state and moving up through the parent states
    in a state hierarchy until an appropriate method is found or the StateManager
    instance itself is reached.
  
    If an appropriately named method is found it will be called with the state
    manager as the first argument and an optional `context` object as the second
    argument.
  
    ```javascript
    managerA = Ember.StateManager.create({
      initialState: 'stateOne.substateOne.subsubstateOne',
      stateOne: Ember.State.create({
        substateOne: Ember.State.create({
          anAction: function(manager, context){
            console.log("an action was called")
          },
          subsubstateOne: Ember.State.create({})
        })
      })
    })
  
    managerA.get('currentState.name') // 'subsubstateOne'
    managerA.send('anAction')
    // 'stateOne.substateOne.subsubstateOne' has no anAction method
    // so the 'anAction' method of 'stateOne.substateOne' is called
    // and logs "an action was called"
    // with managerA as the first argument
    // and no second argument
  
    someObject = {}
    managerA.send('anAction', someObject)
    // the 'anAction' method of 'stateOne.substateOne' is called again
    // with managerA as the first argument and
    // someObject as the second argument.
    ```
  
    If the StateManager attempts to send an action but does not find an appropriately named
    method in the current state or while moving upwards through the state hierarchy, it will
    repeat the process looking for a `unhandledEvent` method. If an `unhandledEvent` method is
    found, it will be called with the original event name as the second argument. If an
    `unhandledEvent` method is not found, the StateManager will throw a new Ember.Error.
  
    ```javascript
    managerB = Ember.StateManager.create({
      initialState: 'stateOne.substateOne.subsubstateOne',
      stateOne: Ember.State.create({
        substateOne: Ember.State.create({
          subsubstateOne: Ember.State.create({}),
          unhandledEvent: function(manager, eventName, context) {
            console.log("got an unhandledEvent with name " + eventName);
          }
        })
      })
    })
  
    managerB.get('currentState.name') // 'subsubstateOne'
    managerB.send('anAction')
    // neither `stateOne.substateOne.subsubstateOne` nor any of it's
    // parent states have a handler for `anAction`. `subsubstateOne`
    // also does not have a `unhandledEvent` method, but its parent
    // state, `substateOne`, does, and it gets fired. It will log
    // "got an unhandledEvent with name anAction"
    ```
  
    Action detection only moves upwards through the state hierarchy from the current state.
    It does not search in other portions of the hierarchy.
  
    ```javascript
    managerC = Ember.StateManager.create({
      initialState: 'stateOne.substateOne.subsubstateOne',
      stateOne: Ember.State.create({
        substateOne: Ember.State.create({
          subsubstateOne: Ember.State.create({})
        })
      }),
      stateTwo: Ember.State.create({
       anAction: function(manager, context){
         // will not be called below because it is
         // not a parent of the current state
       }
      })
    })
  
    managerC.get('currentState.name') // 'subsubstateOne'
    managerC.send('anAction')
    // Error: <Ember.StateManager:ember132> could not
    // respond to event anAction in state stateOne.substateOne.subsubstateOne.
    ```
  
    Inside of an action method the given state should delegate `transitionTo` calls on its
    StateManager.
  
    ```javascript
    robotManager = Ember.StateManager.create({
      initialState: 'poweredDown.charging',
      poweredDown: Ember.State.create({
        charging: Ember.State.create({
          chargeComplete: function(manager, context){
            manager.transitionTo('charged')
          }
        }),
        charged: Ember.State.create({
          boot: function(manager, context){
            manager.transitionTo('poweredUp')
          }
        })
      }),
      poweredUp: Ember.State.create({
        beginExtermination: function(manager, context){
          manager.transitionTo('rampaging')
        },
        rampaging: Ember.State.create()
      })
    })
  
    robotManager.get('currentState.name') // 'charging'
    robotManager.send('boot') // throws error, no boot action
                              // in current hierarchy
    robotManager.get('currentState.name') // remains 'charging'
  
    robotManager.send('beginExtermination') // throws error, no beginExtermination
                                            // action in current hierarchy
    robotManager.get('currentState.name')   // remains 'charging'
  
    robotManager.send('chargeComplete')
    robotManager.get('currentState.name')   // 'charged'
  
    robotManager.send('boot')
    robotManager.get('currentState.name')   // 'poweredUp'
  
    robotManager.send('beginExtermination', allHumans)
    robotManager.get('currentState.name')   // 'rampaging'
    ```
  
    Transition actions can also be created using the `transitionTo` method of the `Ember.State` class. The
    following example StateManagers are equivalent:
  
    ```javascript
    aManager = Ember.StateManager.create({
      stateOne: Ember.State.create({
        changeToStateTwo: Ember.State.transitionTo('stateTwo')
      }),
      stateTwo: Ember.State.create({})
    })
  
    bManager = Ember.StateManager.create({
      stateOne: Ember.State.create({
        changeToStateTwo: function(manager, context){
          manager.transitionTo('stateTwo', context)
        }
      }),
      stateTwo: Ember.State.create({})
    })
    ```
  
    @class StateManager
    @namespace Ember
    @extends Ember.State
  **/
  Ember.StateManager = Ember.State.extend({
    /**
      @private
  
      When creating a new statemanager, look for a default state to transition
      into. This state can either be named `start`, or can be specified using the
      `initialState` property.
  
      @method init
    */
    init: function() {
      this._super();
  
      set(this, 'stateMeta', Ember.Map.create());
  
      var initialState = get(this, 'initialState');
  
      if (!initialState && get(this, 'states.start')) {
        initialState = 'start';
      }
  
      if (initialState) {
        this.transitionTo(initialState);
        Ember.assert('Failed to transition to initial state "' + initialState + '"', !!get(this, 'currentState'));
      }
    },
  
    stateMetaFor: function(state) {
      var meta = get(this, 'stateMeta'),
          stateMeta = meta.get(state);
  
      if (!stateMeta) {
        stateMeta = {};
        meta.set(state, stateMeta);
      }
  
      return stateMeta;
    },
  
    setStateMeta: function(state, key, value) {
      return set(this.stateMetaFor(state), key, value);
    },
  
    getStateMeta: function(state, key) {
      return get(this.stateMetaFor(state), key);
    },
  
    /**
      The current state from among the manager's possible states. This property should
      not be set directly. Use `transitionTo` to move between states by name.
  
      @property currentState
      @type Ember.State
    */
    currentState: null,
  
    /**
     The path of the current state. Returns a string representation of the current
     state.
  
     @property currentPath
     @type String
    */
    currentPath: Ember.computed.alias('currentState.path'),
  
    /**
      The name of transitionEvent that this stateManager will dispatch
  
      @property transitionEvent
      @type String
      @default 'setup'
    */
    transitionEvent: 'setup',
  
    /**
      If set to true, `errorOnUnhandledEvents` will cause an exception to be
      raised if you attempt to send an event to a state manager that is not
      handled by the current state or any of its parent states.
  
      @property errorOnUnhandledEvents
      @type Boolean
      @default true
    */
    errorOnUnhandledEvent: true,
  
    send: function(event) {
      var contexts = [].slice.call(arguments, 1);
      Ember.assert('Cannot send event "' + event + '" while currentState is ' + get(this, 'currentState'), get(this, 'currentState'));
      return sendEvent.call(this, event, contexts, false);
    },
    unhandledEvent: function(manager, event) {
      if (get(this, 'errorOnUnhandledEvent')) {
        throw new Ember.Error(this.toString() + " could not respond to event " + event + " in state " + get(this, 'currentState.path') + ".");
      }
    },
  
    /**
      Finds a state by its state path.
  
      Example:
  
      ```javascript
      manager = Ember.StateManager.create({
        root: Ember.State.create({
          dashboard: Ember.State.create()
        })
      });
  
      manager.getStateByPath(manager, "root.dashboard")
  
      // returns the dashboard state
      ```
  
      @method getStateByPath
      @param {Ember.State} root the state to start searching from
      @param {String} path the state path to follow
      @return {Ember.State} the state at the end of the path
    */
    getStateByPath: function(root, path) {
      var parts = path.split('.'),
          state = root;
  
      for (var i=0, len=parts.length; i<len; i++) {
        state = get(get(state, 'states'), parts[i]);
        if (!state) { break; }
      }
  
      return state;
    },
  
    findStateByPath: function(state, path) {
      var possible;
  
      while (!possible && state) {
        possible = this.getStateByPath(state, path);
        state = get(state, 'parentState');
      }
  
      return possible;
    },
  
    /**
      A state stores its child states in its `states` hash.
      This code takes a path like `posts.show` and looks
      up `root.states.posts.states.show`.
  
      It returns a list of all of the states from the
      root, which is the list of states to call `enter`
      on.
  
      @method getStatesInPath
      @param root
      @param path
    */
    getStatesInPath: function(root, path) {
      if (!path || path === "") { return undefined; }
      var parts = path.split('.'),
          result = [],
          states,
          state;
  
      for (var i=0, len=parts.length; i<len; i++) {
        states = get(root, 'states');
        if (!states) { return undefined; }
        state = get(states, parts[i]);
        if (state) { root = state; result.push(state); }
        else { return undefined; }
      }
  
      return result;
    },
  
    goToState: function() {
      // not deprecating this yet so people don't constantly need to
      // make trivial changes for little reason.
      return this.transitionTo.apply(this, arguments);
    },
  
    transitionTo: function(path, context) {
      // XXX When is transitionTo called with no path
      if (Ember.isEmpty(path)) { return; }
  
      // The ES6 signature of this function is `path, ...contexts`
      var contexts = context ? Array.prototype.slice.call(arguments, 1) : [],
          currentState = get(this, 'currentState') || this;
  
      // First, get the enter, exit and resolve states for the current state
      // and specified path. If possible, use an existing cache.
      var hash = this.contextFreeTransition(currentState, path);
  
      // Next, process the raw state information for the contexts passed in.
      var transition = new Transition(hash).normalize(this, contexts);
  
      this.enterState(transition);
      this.triggerSetupContext(transition);
    },
  
    contextFreeTransition: function(currentState, path) {
      var cache = currentState.getPathsCache(this, path);
      if (cache) { return cache; }
  
      var enterStates = this.getStatesInPath(currentState, path),
          exitStates = [],
          resolveState = currentState;
  
      // Walk up the states. For each state, check whether a state matching
      // the `path` is nested underneath. This will find the closest
      // parent state containing `path`.
      //
      // This allows the user to pass in a relative path. For example, for
      // the following state hierarchy:
      //
      //    | |root
      //    | |- posts
      //    | | |- show (* current)
      //    | |- comments
      //    | | |- show
      //
      // If the current state is `<root.posts.show>`, an attempt to
      // transition to `comments.show` will match `<root.comments.show>`.
      //
      // First, this code will look for root.posts.show.comments.show.
      // Next, it will look for root.posts.comments.show. Finally,
      // it will look for `root.comments.show`, and find the state.
      //
      // After this process, the following variables will exist:
      //
      // * resolveState: a common parent state between the current
      //   and target state. In the above example, `<root>` is the
      //   `resolveState`.
      // * enterStates: a list of all of the states represented
      //   by the path from the `resolveState`. For example, for
      //   the path `root.comments.show`, `enterStates` would have
      //   `[<root.comments>, <root.comments.show>]`
      // * exitStates: a list of all of the states from the
      //   `resolveState` to the `currentState`. In the above
      //   example, `exitStates` would have
      //   `[<root.posts>`, `<root.posts.show>]`.
      while (resolveState && !enterStates) {
        exitStates.unshift(resolveState);
  
        resolveState = get(resolveState, 'parentState');
        if (!resolveState) {
          enterStates = this.getStatesInPath(this, path);
          if (!enterStates) {
            Ember.assert('Could not find state for path: "'+path+'"');
            return;
          }
        }
        enterStates = this.getStatesInPath(resolveState, path);
      }
  
      // If the path contains some states that are parents of both the
      // current state and the target state, remove them.
      //
      // For example, in the following hierarchy:
      //
      // |- root
      // | |- post
      // | | |- index (* current)
      // | | |- show
      //
      // If the `path` is `root.post.show`, the three variables will
      // be:
      //
      // * resolveState: `<state manager>`
      // * enterStates: `[<root>, <root.post>, <root.post.show>]`
      // * exitStates: `[<root>, <root.post>, <root.post.index>]`
      //
      // The goal of this code is to remove the common states, so we
      // have:
      //
      // * resolveState: `<root.post>`
      // * enterStates: `[<root.post.show>]`
      // * exitStates: `[<root.post.index>]`
      //
      // This avoid unnecessary calls to the enter and exit transitions.
      while (enterStates.length > 0 && enterStates[0] === exitStates[0]) {
        resolveState = enterStates.shift();
        exitStates.shift();
      }
  
      // Cache the enterStates, exitStates, and resolveState for the
      // current state and the `path`.
      var transitions = {
        exitStates: exitStates,
        enterStates: enterStates,
        resolveState: resolveState
      };
  
      currentState.setPathsCache(this, path, transitions);
  
      return transitions;
    },
  
    triggerSetupContext: function(transitions) {
      var contexts = transitions.contexts,
          offset = transitions.enterStates.length - contexts.length,
          enterStates = transitions.enterStates,
          transitionEvent = get(this, 'transitionEvent');
  
      Ember.assert("More contexts provided than states", offset >= 0);
  
      arrayForEach.call(enterStates, function(state, idx) {
        state.trigger(transitionEvent, this, contexts[idx-offset]);
      }, this);
    },
  
    getState: function(name) {
      var state = get(this, name),
          parentState = get(this, 'parentState');
  
      if (state) {
        return state;
      } else if (parentState) {
        return parentState.getState(name);
      }
    },
  
    enterState: function(transition) {
      var log = this.enableLogging;
  
      var exitStates = transition.exitStates.slice(0).reverse();
      arrayForEach.call(exitStates, function(state) {
        state.trigger('exit', this);
      }, this);
  
      arrayForEach.call(transition.enterStates, function(state) {
        if (log) { Ember.Logger.log("STATEMANAGER: Entering " + get(state, 'path')); }
        state.trigger('enter', this);
      }, this);
  
      set(this, 'currentState', transition.finalState);
    }
  });
  
  })();
  
  
  
  (function() {
  /**
  Ember States
  
  @module ember
  @submodule ember-states
  @requires ember-runtime
  */
  
  })();
  
  (function() {
  var slice = [].slice,
      helpers = {},
      originalMethods = {},
      injectHelpersCallbacks = [];
  
  /**
    @class Test
    @namespace Ember
  */
  Ember.Test = {
  
    /**
      @public
  
      `registerHelper` is used to register a
      test helper that will be injected when
      `App.injectTestHelpers` is called.
  
      The helper method will always be called
      with the current Application as the first
      parameter.
  
      For example:
      ```javascript
      Ember.Test.registerHelper('boot', function(app)) {
        Ember.run(app, app.deferReadiness);
      }
      ```
  
      This helper can later be called without arguments
      because it will be called with `app` as the
      first parameter.
  
      ```javascript
        App = Ember.Application.create();
        App.injectTestHelpers();
        boot();
      ```
  
      Whenever you register a helper that
      performs async operations,
      make sure you `return wait();` at the
      end of the helper.
  
      If an async helper also needs to return a value,
      pass it to the `wait` helper as a first argument:
      `return wait(val);`
  
      @method registerHelper
      @param name {String}
      @param helperMethod {Function}
    */
    registerHelper: function(name, helperMethod) {
      helpers[name] = helperMethod;
    },
    /**
      @public
      @method unregisterHelper
      @param name {String}
    */
    unregisterHelper: function(name) {
      delete helpers[name];
      if (originalMethods[name]) {
        window[name] = originalMethods[name];
      }
      delete originalMethods[name];
    },
  
    /**
      @public
  
      Used to register callbacks to be fired
      whenever `App.injectTestHelpers` is called
  
      The callback will receive the current application
      as an argument.
  
      @method unregisterHelper
      @param name {String}
    */
    onInjectHelpers: function(callback) {
      injectHelpersCallbacks.push(callback);
    },
  
    /**
      @public
  
      This returns a thenable tailored
      for testing.  It catches failed
      `onSuccess` callbacks and invokes
      the `Ember.Test.adapter.exception`
      callback in the last chained then.
  
      This method should be returned
      by async helpers such as `wait`.
  
      @method promise
      @param resolver {Function}
    */
    promise: function(resolver) {
      var promise = new Ember.RSVP.Promise(resolver);
      var thenable = {
        chained: false
      };
      thenable.then = function(onSuccess, onFailure) {
        var thenPromise, nextPromise;
        thenable.chained = true;
        thenPromise = promise.then(onSuccess, onFailure);
        // this is to ensure all downstream fulfillment
        // handlers are wrapped in the error handling
        nextPromise = Ember.Test.promise(function(resolve) {
          resolve(thenPromise);
        });
        thenPromise.then(null, function(reason) {
          // ensure this is the last promise in the chain
          // if not, ignore and the exception will propagate
          // this prevents the same error from being fired multiple times
          if (!nextPromise.chained) {
            Ember.Test.adapter.exception(reason);
          }
        });
        return nextPromise;
      };
      return thenable;
    },
  
    /**
     @public
  
     Used to allow ember-testing
     to communicate with a specific
     testing framework.
  
     You can manually set it before calling
     `App.setupForTesting()`.
  
     Example:
     'Ember.Test.adapter = MyCustomAdapter.create()'
  
     If you do not set it, ember-testing
     will default to `Ember.Test.QUnitAdapter`.
    */
    adapter: null
  };
  
  function curry(app, fn) {
    return function() {
      var args = slice.call(arguments);
      args.unshift(app);
      return fn.apply(app, args);
    };
  }
  
  Ember.Application.reopen({
    testHelpers: {},
  
    setupForTesting: function() {
      this.deferReadiness();
  
      this.Router.reopen({
        location: 'none'
      });
  
     // if adapter is not manually set
      // default to QUnit
      if (!Ember.Test.adapter) {
         Ember.Test.adapter = Ember.Test.QUnitAdapter.create();
      }
    },
  
    injectTestHelpers: function() {
      this.testHelpers = {};
      for (var name in helpers) {
        originalMethods[name] = window[name];
        this.testHelpers[name] = window[name] = curry(this, helpers[name]);
      }
  
      for(var i = 0, l = injectHelpersCallbacks.length; i < l; i++) {
        injectHelpersCallbacks[i](this);
      }
    },
  
    removeTestHelpers: function() {
      for (var name in helpers) {
        window[name] = originalMethods[name];
        delete this.testHelpers[name];
        delete originalMethods[name];
      }
    }
  });
  
  })();
  
  
  
  (function() {
  var Test = Ember.Test;
  
  /**
    @class Adapter
    @namespace Ember.Test
  */
  Test.Adapter = Ember.Object.extend({
    /**
      @public
  
      This callback will be called
      whenever an async operation
      is about to start.
  
      Override this to call your
      framework's methods
      that handle async operations
  
      @method asyncStart
    */
    asyncStart: Ember.K,
  
    /**
      @public
  
      This callback will be called
      whenever an async operation
      has completed.
  
      @method asyncEnd
    */
    asyncEnd: Ember.K,
  
    /**
     @public
  
      Override this method with your
      testing framework's false assertion
      This function is called whenever
      an exception occurs causing the testing
      promise to fail.
  
      QUnit example:
  
      ```javascript
      exception: function(error) {
        ok(false, error);
      }
      ```
  
      @method exception
      @param reason {String}
    */
    exception: function(error) {
      setTimeout(function() {
        throw error;
      });
    }
  });
  
  /**
    @class QUnitAdapter
    @namespace Ember.Test
  */
  Test.QUnitAdapter = Test.Adapter.extend({
    asyncStart: function() {
      stop();
    },
    asyncEnd: function() {
      start();
    },
    exception: function(error) {
      ok(false, error);
    }
  });
  
  })();
  
  
  
  (function() {
  var get = Ember.get,
      Test = Ember.Test,
      helper = Test.registerHelper,
      countAsync = 0;
  
  Test.pendingAjaxRequests = 0;
  
  Test.onInjectHelpers(function() {
    Ember.$(document).ajaxStart(function() {
      Test.pendingAjaxRequests++;
    });
  
    Ember.$(document).ajaxStop(function() {
      Test.pendingAjaxRequests--;
    });
  });
  
  
  function visit(app, url) {
    app.__container__.lookup('router:main').location.setURL(url);
    Ember.run(app, app.handleURL, url);
    return wait(app);
  }
  
  function click(app, selector, context) {
    var $el = findWithAssert(app, selector, context);
    Ember.run($el, 'click');
    return wait(app);
  }
  
  function fillIn(app, selector, context, text) {
    var $el;
    if (typeof text === 'undefined') {
      text = context;
      context = null;
    }
    $el = findWithAssert(app, selector, context);
    Ember.run(function() {
      $el.val(text).change();
    });
    return wait(app);
  }
  
  function findWithAssert(app, selector, context) {
    var $el = find(app, selector, context);
    if ($el.length === 0) {
      throw("Element " + selector + " not found.");
    }
    return $el;
  }
  
  function find(app, selector, context) {
    var $el;
    context = context || get(app, 'rootElement');
    $el = app.$(selector, context);
  
    return $el;
  }
  
  function wait(app, value) {
    var promise;
  
    promise = Test.promise(function(resolve) {
      if (++countAsync === 1) {
        Test.adapter.asyncStart();
      }
      var watcher = setInterval(function() {
        var routerIsLoading = app.__container__.lookup('router:main').router.isLoading;
        if (routerIsLoading) { return; }
        if (Test.pendingAjaxRequests) { return; }
        if (Ember.run.hasScheduledTimers() || Ember.run.currentRunLoop) { return; }
  
        clearInterval(watcher);
  
        if (--countAsync === 0) {
          Test.adapter.asyncEnd();
        }
  
        Ember.run(null, resolve, value);
      }, 10);
    });
  
    return buildChainObject(app, promise);
  }
  
  /**
   Builds an object that contains
   all helper methods. This object will be
   returned by helpers and then-promises.
  
   This allows us to chain helpers:
  
   ```javascript
    visit('posts/new')
    .click('.add-btn')
    .fillIn('.title', 'Post')
    .click('.submit')
    .then(function() {
      equal('.post-title', 'Post');
    })
    .visit('comments')
    .then(function() {
      equal(find('.comments'),length, 0);
    });
   ```
  */
  function buildChainObject(app, promise) {
    var helperName, obj = {};
    for(helperName in app.testHelpers) {
      obj[helperName] = chain(app, promise, app.testHelpers[helperName]);
    }
    obj.then = function(fn) {
      var thenPromise = promise.then(fn);
      return buildChainObject(app, thenPromise);
    };
    return obj;
  }
  
  function chain(app, promise, fn) {
    return function() {
      var args = arguments, chainedPromise;
      chainedPromise = promise.then(function() {
        return fn.apply(null, args);
      });
      return buildChainObject(app, chainedPromise);
    };
  }
  
  // expose these methods as test helpers
  helper('visit', visit);
  helper('click', click);
  helper('fillIn', fillIn);
  helper('find', find);
  helper('findWithAssert', findWithAssert);
  helper('wait', wait);
  
  })();
  
  
  
  (function() {
  
  })();
  
  (function() {
  /**
  Ember
  
  @module ember
  */
  
  })();
  
  
  })();
  