text: (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.socketPouch = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
  'use strict';
  
  module.exports = _dereq_('../lib/client');
  },{"../lib/client":8}],2:[function(_dereq_,module,exports){
  'use strict';
  
  //Can't find original post, but this is close
  //http://stackoverflow.com/questions/6965107/ (continues on next line)
  //converting-between-strings-and-arraybuffers
  module.exports = function (buffer) {
    var binary = '';
    var bytes = new Uint8Array(buffer);
    var length = bytes.byteLength;
    for (var i = 0; i < length; i++) {
      binary += String.fromCharCode(bytes[i]);
    }
    return binary;
  };
  },{}],3:[function(_dereq_,module,exports){
  'use strict';
  
  var buffer = _dereq_('../shared/buffer');
  
  /* istanbul ignore if */
  if (typeof atob === 'function') {
    exports.atob = function (str) {
      /* global atob */
      return atob(str);
    };
  } else {
    exports.atob = function (str) {
      var base64 = new buffer(str, 'base64');
      // Node.js will just skip the characters it can't encode instead of
      // throwing and exception
      if (base64.toString('base64') !== str) {
        throw ("Cannot base64 encode full string");
      }
      return base64.toString('binary');
    };
  }
  
  /* istanbul ignore if */
  if (typeof btoa === 'function') {
    exports.btoa = function (str) {
      /* global btoa */
      return btoa(str);
    };
  } else {
    exports.btoa = function (str) {
      return new buffer(str, 'binary').toString('base64');
    };
  }
  },{"../shared/buffer":11}],4:[function(_dereq_,module,exports){
  'use strict';
  
  var binaryStringToBlobOrBuffer = _dereq_('./binaryStringToBlobOrBuffer');
  
  module.exports = function (b64, type) {
    return binaryStringToBlobOrBuffer(atob(b64), type);
  };
  },{"./binaryStringToBlobOrBuffer":6}],5:[function(_dereq_,module,exports){
  'use strict';
  
  // From http://stackoverflow.com/questions/14967647/ (continues on next line)
  // encode-decode-image-with-base64-breaks-image (2013-04-21)
  module.exports = function (bin) {
    var length = bin.length;
    var buf = new ArrayBuffer(length);
    var arr = new Uint8Array(buf);
    for (var i = 0; i < length; i++) {
      arr[i] = bin.charCodeAt(i);
    }
    return buf;
  };
  },{}],6:[function(_dereq_,module,exports){
  'use strict';
  
  var createBlob = _dereq_('./blob');
  var binaryStringToArrayBuffer = _dereq_('./binaryStringToArrayBuffer');
  
  module.exports = function (binString, type) {
    return createBlob([binaryStringToArrayBuffer(binString)], {type: type});
  };
  },{"./binaryStringToArrayBuffer":5,"./blob":7}],7:[function(_dereq_,module,exports){
  "use strict";
  
  // Abstracts constructing a Blob object, so it also works in older
  // browsers that don't support the native Blob constructor (e.g.
  // old QtWebKit versions, Android < 4.4).
  function createBlob(parts, properties) {
    /* global BlobBuilder,MSBlobBuilder,MozBlobBuilder,WebKitBlobBuilder */
    parts = parts || [];
    properties = properties || {};
    try {
      return new Blob(parts, properties);
    } catch (e) {
      if (e.name !== "TypeError") {
        throw e;
      }
      var Builder = typeof BlobBuilder !== 'undefined' ? BlobBuilder :
                    typeof MSBlobBuilder !== 'undefined' ? MSBlobBuilder :
                    typeof MozBlobBuilder !== 'undefined' ? MozBlobBuilder :
                    WebKitBlobBuilder;
      var builder = new Builder();
      for (var i = 0; i < parts.length; i += 1) {
        builder.append(parts[i]);
      }
      return builder.getBlob(properties.type);
    }
  }
  
  module.exports = createBlob;
  
  
  },{}],8:[function(_dereq_,module,exports){
  (function (process){
  'use strict';
  
  var utils = _dereq_('../shared/utils');
  var clientUtils = _dereq_('./utils');
  var uuid = _dereq_('./../shared/uuid');
  var errors = _dereq_('../shared/errors');
  var log = _dereq_('debug')('pouchdb:socket:client');
  var Socket = _dereq_('engine.io-client');
  var blobUtil = _dereq_('blob-util');
  var isBrowser = typeof process === 'undefined' || process.browser;
  var buffer = _dereq_('../shared/buffer');
  var preprocessAttachments = clientUtils.preprocessAttachments;
  var stringifyArgs = clientUtils.stringifyArgs;
  var padInt = clientUtils.padInt;
  var readAttachmentsAsBlobOrBuffer = clientUtils.readAttachmentsAsBlobOrBuffer;
  var adapterFun = clientUtils.adapterFun;
  var readAsBinaryString = _dereq_('./readAsBinaryString');
  var isBinaryObject = _dereq_('../shared/isBinaryObject');
  var Promise = _dereq_('pouchdb-promise');
  var base64 = _dereq_('./base64');
  var reconnect = _dereq_('engine.io-reconnect');
  
  var instances = {};
  
  function close(api, callback) {
    // api.name was added in pouchdb 6.0.0
    log('closing socket', api._socketId, api.name || api._name);
  
    function closeSocket() {
      api._socket.closed = true;
      api._socket.once('close', function (msg) {
        log('socket closed', api._socketId, msg);
        api._socket.removeAllListeners();
        callback();
      });
      api._socket.close();
    }
  
    if (api._socket.closed) {
      return callback();
    }
    closeSocket();
  }
  
  // Implements the PouchDB API for dealing with CouchDB instances over WS
  function SocketPouch(opts, callback) {
    var api = this;
  
    if (typeof opts === 'string') {
      var slashIdx = utils.lastIndexOf(opts, '/');
      opts = {
        url: opts.substring(0, slashIdx),
        name: opts.substring(slashIdx + 1)
      };
    } else {
      opts = utils.clone(opts);
    }
  
    log('constructor called', opts);
  
    if (!opts.url || !opts.name) {
      var optsErrMessage = 'Error: you must provide a web socket ' +
        'url and database name.';
      console.error(optsErrMessage);
      return callback(new Error(optsErrMessage));
    }
  
    // api.name was added in pouchdb 6.0.0
    api._socketName = api.name || opts.originalName;
  
    var cacheKey = '$' + api._socketName;
  
    function useExistingSocket() {
      // Re-use the cached one instead of creating multiple sockets.
      // This is important, because if a user creates many PouchDBs
      // without closing/destroying each one, then we could end up
      // with too many open sockets, which causes problems like
      // https://github.com/Automattic/engine.io/issues/320
      var instance = instances[cacheKey];
      api._socket = instance._socket;
      api._callbacks = instance._callbacks;
      api._changesListeners = instance._changesListeners;
      api._blobs = instance._blobs;
      api._binaryMessages = instance._binaryMessages;
      api._name = instance._name;
  
      if (instance._socketId) {
        api._socketId = instance._socketId;
        process.nextTick(function () {
          callback(null, api);
        });
      } else {
        api._socket.once('open', function () {
          api._socketId = api._socket.id;
          process.nextTick(function () {
            callback(null, api);
          });
        });
      }
    }
  
    function createNewSocket() {
      // to force XHR during debugging
      // opts.socketOptions = {transports: ['polling']};
      var socket = api._socket = new Socket(opts.url, opts.socketOptions || {});
      var io = reconnect(socket);
  
      function doinit() {
        console.log('doinit');
        api._socketId = socket.id;
        log('socket opened', api._socketId, api._name);
        var serverOpts = {
          name: api._name,
          auto_compaction: !!opts.auto_compaction
        };
        if ('revs_limit' in opts) {
          serverOpts.revs_limit = opts.revs_limit;
        }
        sendMessage('createDatabase', [serverOpts], function (err) {
          if (err) {
            return callback(err);
          }
          callback(null, api);
        });
      }
  
      io.on('reconnect', function(attempts) {
        console.log('Reconnected after %d attempts', attempts);
        doinit();
      });
  
      io.on('reconnecting', function(attempts) {
        console.log('Trying to reconnect after %d attempts', attempts);
      });
  
      io.on('reconnect_error', function(error) {
        console.log('Error trying to reconnect', error);
      });
  
      io.on('reconnect_timeout', function(timeout) {
        console.log('Timeout after %dms', timeout);
      });
  
      socket.binaryType = 'blob';
      api._callbacks = {};
      api._changesListeners = {};
      api._blobs = {};
      api._binaryMessages = {};
      api._name = api._socketName;
      instances[cacheKey] = api;
  
      socket.once('open', function(){
        doinit();
      });
  
      api._socket.once('error', function (err) {
        callback(err);
      });
  
      function handleUncaughtError(content) {
        try {
          api.emit('error', content);
        } catch (err) {
          // TODO: it's weird that adapters should have to handle this themselves
          console.error(
            'The user\'s map/reduce function threw an uncaught error.\n' +
            'You can debug this error by doing:\n' +
            'myDatabase.on(\'error\', function (err) { debugger; });\n' +
            'Please double-check your map/reduce function.');
          console.error(content);
        }
      }
  
      function receiveMessage(res) {
        var split = utils.parseMessage(res, 3);
        var messageId = split[0];
        var messageType = split[1];
        var content = JSON.parse(split[2]);
  
        if (messageType === '4') { // unhandled error
          handleUncaughtError(content);
          return;
        }
  
        var cb = api._callbacks[messageId];
  
        if (!cb) {
          log('duplicate message (ignoring)', messageId, messageType, content);
          return;
        }
  
        log('receive message', api._socketId, messageId, messageType, content);
  
        if (messageType === '0') { // error
          delete api._callbacks[messageId];
          cb(content);
        } else if (messageType === '1') { // success
          delete api._callbacks[messageId];
          cb(null, content);
        } else if (messageType === '2') { // update, i.e. changes
          if (api._changesListeners[messageId].asBinary) {
            readAttachmentsAsBlobOrBuffer(content);
          }
          api._changesListeners[messageId].listener(content);
        } else { // binary success
          delete api._callbacks[messageId];
          receiveBinaryMessage(content, cb);
        }
      }
  
      function receiveBinaryMessage(content, cb) {
        log('receiveBinaryMessage', content.uuid);
        api._binaryMessages[content.uuid] = {
          contentType: content.type,
          cb: cb
        };
        checkBinaryReady(uuid);
      }
  
      function receiveBlob(blob) {
        if (isBrowser) {
          blobUtil.blobToBinaryString(blob.slice(0, 36)).then(function (uuid) {
            api._blobs[uuid] = blob.slice(36);
            log('receiveBlob', uuid);
            checkBinaryReady(uuid);
          })["catch"](console.log.bind(console));
        } else {
          var uuid = blob.slice(0, 36).toString('utf8');
          log('receiveBlob', uuid);
          api._blobs[uuid] = blob.slice(36);
          checkBinaryReady(uuid);
        }
      }
  
      // binary messages come in two parts; wait until we've received both
      function checkBinaryReady(uuid) {
        if (!(uuid in api._blobs && uuid in api._binaryMessages)) {
          return;
        }
        log('receive full binary message', uuid);
        var blob = api._blobs[uuid];
        var msg = api._binaryMessages[uuid];
  
        delete api._blobs[uuid];
        delete api._binaryMessages[uuid];
  
        var blobToDeliver;
        if (isBrowser) {
          blobToDeliver = blobUtil.createBlob([blob], {type: msg.contentType});
        } else {
          blobToDeliver = blob;
          blob.type = msg.contentType; // non-standard, but we do it for the tests
        }
  
        msg.cb(null, blobToDeliver);
      }
  
      api._socket.on('message', function (res) {
        if (typeof res !== 'string') {
          return receiveBlob(res);
        }
        receiveMessage(res);
      });
    }
  
    if (instances[cacheKey]) {
      useExistingSocket();
    } else { // new DB
      createNewSocket();
    }
  
    function sendMessage(type, args, callback) {
      if (api._destroyed) {
        return callback(new Error('this db was destroyed'));
      } else if (api._closed) {
        return callback(new Error('this db was closed'));
      }
      var messageId = uuid();
      log('send message', api._socketId, messageId, type, args);
      api._callbacks[messageId] = callback;
      var stringArgs = stringifyArgs(args);
      api._socket.send(type + ':' + messageId + ':' + stringArgs, function () {
        log('message sent', api._socketId, messageId);
      });
    }
  
    function sendBinaryMessage(type, args, blobIndex, blob, callback) {
      var messageId = uuid();
      api._callbacks[messageId] = callback;
      var header = {
        args: args,
        blobIndex: blobIndex,
        messageId: messageId,
        messageType: type
      };
  
      log('send binary message', api._socketId, messageId, header);
      var headerString = JSON.stringify(header);
      var headerLen = padInt(headerString.length, 16);
      var blobToSend;
      if (isBrowser) {
        blobToSend = blobUtil.createBlob([
          headerLen,
          headerString,
          blob
        ]);
      } else { // node.js
        blobToSend = buffer.concat([
          new buffer(headerLen, 'utf8'),
          new buffer(headerString, 'utf8'),
          new buffer(blob, 'binary')
        ]);
      }
      api._socket.send(blobToSend, function () {
        log('binary message sent', api._socketId, messageId);
      });
    }
  
    api.type = function () {
      return 'socket';
    };
  
    api._id = adapterFun('id', function (callback) {
      sendMessage('id', [], callback);
    });
  
    api.compact = adapterFun('compact', function (opts, callback) {
      if (typeof opts === 'function') {
        callback = opts;
        opts = {};
      }
      sendMessage('compact', [opts], callback);
    });
  
    api._info = function (callback) {
      sendMessage('info', [], callback);
    };
  
    api.get = adapterFun('get', function (id, opts, callback) {
      if (typeof opts === 'function') {
        callback = opts;
        opts = {};
      }
      sendMessage('get', [id, opts], function (err, res) {
        if (err) {
          return callback(err);
        }
        if (opts.attachments && opts.binary) {
          if (Array.isArray(res)) {
            res.forEach(readAttachmentsAsBlobOrBuffer);
          } else {
            readAttachmentsAsBlobOrBuffer({doc: res});
          }
        }
        callback(null, res);
      });
    });
  
    // hacky code necessary due to implicit breaking change in
    // https://github.com/pouchdb/pouchdb/commits/0ddeae6b
    api._get = function (id, opts, callback) {
      api.get(id, opts, function (err, doc) {
        if (err) {
          return callback(err);
        }
        callback(null, {doc: doc});
      });
    };
  
    api.remove =
      adapterFun('remove', function (docOrId, optsOrRev, opts, callback) {
        var doc;
        if (typeof optsOrRev === 'string') {
          // id, rev, opts, callback style
          doc = {
            _id: docOrId,
            _rev: optsOrRev
          };
          if (typeof opts === 'function') {
            callback = opts;
            opts = {};
          }
        } else {
          // doc, opts, callback style
          doc = docOrId;
          if (typeof optsOrRev === 'function') {
            callback = optsOrRev;
            opts = {};
          } else {
            callback = opts;
            opts = optsOrRev;
          }
        }
        var rev = (doc._rev || opts.rev);
  
        sendMessage('remove', [doc._id, rev], callback);
    });
  
    api.getAttachment =
      adapterFun('getAttachment', function (docId, attachmentId, opts,
                                                  callback) {
        if (typeof opts === 'function') {
          callback = opts;
          opts = {};
        }
        sendMessage('getAttachment', [docId, attachmentId, opts], callback);
    });
  
    api.removeAttachment =
      adapterFun('removeAttachment', function (docId, attachmentId, rev,
                                                     callback) {
  
        sendMessage('removeAttachment', [docId, attachmentId, rev], callback);
      });
  
    // Add the attachment given by blob and its contentType property
    // to the document with the given id, the revision given by rev, and
    // add it to the database given by host.
    api.putAttachment =
      adapterFun('putAttachment', function (docId, attachmentId, rev, blob,
                                                  type, callback) {
        if (typeof type === 'function') {
          callback = type;
          type = blob;
          blob = rev;
          rev = null;
        }
        if (typeof type === 'undefined') {
          type = blob;
          blob = rev;
          rev = null;
        }
  
        if (typeof blob === 'string') {
          var binary;
          try {
            binary = utils.atob(blob);
          } catch (err) {
            // it's not base64-encoded, so throw error
            return callback(errors.error(errors.BAD_ARG,
              'Attachments need to be base64 encoded'));
          }
          if (isBrowser) {
            blob = utils.createBlob([utils.binaryStringToArrayBuffer(binary)], {type: type});
          } else {
            blob = binary ? new buffer(binary, 'binary') : '';
          }
        }
  
        var args = [docId, attachmentId, rev, null, type];
        sendBinaryMessage('putAttachment', args, 3, blob, callback);
      });
  
    api.put = adapterFun('put', utils.getArguments(function (args) {
      var temp, temptype, opts;
      var doc = args.shift();
      var id = '_id' in doc;
      var callback = args.pop();
      if (typeof doc !== 'object' || Array.isArray(doc)) {
        return callback(errors.error(errors.NOT_AN_OBJECT));
      }
  
      doc = utils.clone(doc);
  
      preprocessAttachments(doc).then(function () {
        while (true) {
          temp = args.shift();
          temptype = typeof temp;
          if (temptype === "string" && !id) {
            doc._id = temp;
            id = true;
          } else if (temptype === "string" && id && !('_rev' in doc)) {
            doc._rev = temp;
          } else if (temptype === "object") {
            opts = utils.clone(temp);
          }
          if (!args.length) {
            break;
          }
        }
        opts = opts || {};
  
        sendMessage('put', [doc, opts], callback);
      })["catch"](callback);
  
    }));
  
    api.post = adapterFun('post', function (doc, opts, callback) {
      if (typeof opts === 'function') {
        callback = opts;
        opts = {};
      }
      opts = utils.clone(opts);
  
      sendMessage('post', [doc, opts], callback);
    });
  
    api._bulkDocs = function (req, opts, callback) {
      var docs = req.docs || req;
  
      Promise.all(docs.map(function (doc) {
        var atts = doc._attachments;
        if (!atts) {
          return;
        }
        return Promise.all(Object.keys(atts).map(function (key) {
          var att = doc._attachments[key];
          if (!isBinaryObject(att.data)) {
            return;
          }
          return new Promise(function (resolve) {
            readAsBinaryString(att.data, resolve);
          }).then(function (binString) {
            att.data = base64.btoa(binString);
          });
        }));
      })).then(function () {
        sendMessage('bulkDocs', [req, opts], callback);
      })["catch"](callback);
    };
  
    api._allDocs = function (opts, callback) {
      if (typeof opts === 'function') {
        callback = opts;
        opts = {};
      }
      sendMessage('allDocs', [opts], function (err, res) {
        if (err) {
          return callback(err);
        }
        if (opts.attachments && opts.binary) {
          res.rows.forEach(readAttachmentsAsBlobOrBuffer);
        }
        callback(null, res);
      });
    };
  
    api._changes = function (opts) {
      opts = utils.clone(opts);
  
      if (opts.continuous) {
        var messageId = uuid();
        api._changesListeners[messageId] = {
          listener: opts.onChange,
          asBinary: opts.attachments && opts.binary
        };
        api._callbacks[messageId] = opts.complete;
        api._socket.send('liveChanges' + ':' + messageId + ':' + JSON.stringify([opts]));
        return {
          cancel: function () {
            api._socket.send('cancelChanges' + ':' + messageId + ':' + JSON.stringify([]));
          }
        };
      }
  
      sendMessage('changes', [opts], function (err, res) {
        if (err) {
          opts.complete(err);
          return callback(err);
        }
        res.results.forEach(function (change) {
          if (opts.attachments && opts.binary) {
            readAttachmentsAsBlobOrBuffer(change);
          }
          opts.onChange(change);
        });
        if (opts.returnDocs === false || opts.return_docs === false) {
          res.results = [];
        }
        opts.complete(null, res);
      });
    };
  
    // Given a set of document/revision IDs (given by req), tets the subset of
    // those that do NOT correspond to revisions stored in the database.
    // See http://wiki.apache.org/couchdb/HttpPostRevsDiff
    api.revsDiff = adapterFun('revsDiff', function (req, opts, callback) {
      // If no options were given, set the callback to be the second parameter
      if (typeof opts === 'function') {
        callback = opts;
        opts = {};
      }
  
      sendMessage('revsDiff', [req, opts], callback);
    });
  
    api._query = adapterFun('query', function (fun, opts, callback) {
      if (typeof opts === 'function') {
        callback = opts;
        opts = {};
      }
      var funEncoded = fun;
      if (typeof fun === 'function') {
        funEncoded = {map: fun};
      }
      sendMessage('query', [funEncoded, opts], function (err, res) {
        if (err) {
          return callback(err);
        }
        if (opts.attachments && opts.binary) {
          res.rows.forEach(readAttachmentsAsBlobOrBuffer);
        }
        callback(null, res);
      });
    });
  
    api.request = adapterFun('request', function (req, callback) {
      var url = req.url;
      var method = req.method;
      var type;
      if(url == '_index'){
        type = {'POST':'createIndex', 'GET':'getIndexes', 'DELETE': 'deleteIndex'}[method];
      }else if(url == '_find'){
        type = 'find';
      }
      var opts = [];
      if(req.body) {
        opts.push(req.body);
      }
      sendMessage(type, opts, function (err, res) {
        if (err) {
          return callback(err);
        }
        if (opts.attachments && opts.binary) {
          res.rows.forEach(readAttachmentsAsBlobOrBuffer);
        }
        callback(null, res);
      });
    }); 
  
    api._viewCleanup = adapterFun('viewCleanup', function (callback) {
      sendMessage('viewCleanup', [], callback);
    });
  
    api._close = function (callback) {
      api._closed = true;
      var cacheKey = '$' + api._socketName;
      if (!instances[cacheKey]) { // already closed/destroyed
        return callback();
      }
      delete instances[cacheKey];
      close(api, callback);
    };
  
    api.destroy = adapterFun('destroy', function (opts, callback) {
      if (typeof opts === 'function') {
        callback = opts;
        opts = {};
      }
      var cacheKey = '$' + api._socketName;
  
      if (!instances[cacheKey]) { // already closed/destroyed
        return callback(null, {ok: true});
      }
      delete instances[cacheKey];
      sendMessage('destroy', [], function (err, res) {
        if (err) {
          api.emit('error', err);
          return callback(err);
        }
        api._destroyed = true;
        close(api, function (err) {
          if (err) {
            api.emit('error', err);
            return callback(err);
          }
          api.emit('destroyed');
          callback(null, res);
        });
      });
    });
  }
  
  // SocketPouch is a valid adapter.
  SocketPouch.valid = function () {
    return true;
  };
  
  module.exports = SocketPouch;
  
  /* istanbul ignore next */
  if (typeof window !== 'undefined' && window.PouchDB) {
    window.PouchDB.adapter('socket', module.exports);
  }
  
  }).call(this,_dereq_('_process'))
  },{"../shared/buffer":11,"../shared/errors":13,"../shared/isBinaryObject":14,"../shared/utils":17,"./../shared/uuid":18,"./base64":3,"./readAsBinaryString":9,"./utils":10,"_process":74,"blob-util":23,"debug":28,"engine.io-client":30,"engine.io-reconnect":45,"pouchdb-promise":72}],9:[function(_dereq_,module,exports){
  'use strict';
  
  var arrayBufferToBinaryString = _dereq_('./arrayBufferToBinaryString');
  
  // shim for browsers that don't support it
  module.exports = function (blob, callback) {
    var reader = new FileReader();
    var hasBinaryString = typeof reader.readAsBinaryString === 'function';
    reader.onloadend = function (e) {
      var result = e.target.result || '';
      if (hasBinaryString) {
        return callback(result);
      }
      callback(arrayBufferToBinaryString(result));
    };
    if (hasBinaryString) {
      reader.readAsBinaryString(blob);
    } else {
      reader.readAsArrayBuffer(blob);
    }
  };
  },{"./arrayBufferToBinaryString":2}],10:[function(_dereq_,module,exports){
  (function (process){
  'use strict';
  
  var utils = _dereq_('../shared/utils');
  var log = _dereq_('debug')('pouchdb:socket:client');
  var isBrowser = typeof process === 'undefined' || process.browser;
  
  exports.preprocessAttachments = function preprocessAttachments(doc) {
    if (!doc._attachments || !Object.keys(doc._attachments)) {
      return utils.Promise.resolve();
    }
  
    var atts = doc._attachments;
    return utils.Promise.all(Object.keys(atts).map(function (key) {
      var att = atts[key];
      if (att.data && typeof att.data !== 'string') {
        if (isBrowser) {
          return new utils.Promise(function (resolve) {
            utils.readAsBinaryString(att.data, function (binary) {
              att.data = utils.btoa(binary);
              resolve();
            });
          });
        } else {
          att.data = att.data.toString('base64');
        }
      }
    }));
  };
  
  var b64StringToBluffer =
    _dereq_('./base64StringToBlobOrBuffer');
  
  exports.readAttachmentsAsBlobOrBuffer = function (row) {
    var atts = (row.doc && row.doc._attachments) ||
      (row.ok && row.ok._attachments);
    if (!atts) {
      return;
    }
    Object.keys(atts).forEach(function (filename) {
      var att = atts[filename];
      att.data = b64StringToBluffer(att.data, att.content_type);
    });
  };
  
  exports.stringifyArgs = function stringifyArgs(args) {
    var funcArgs = ['filter', 'map', 'reduce'];
    args.forEach(function (arg) {
      if (typeof arg === 'object' && arg !== null && !Array.isArray(arg)) {
        funcArgs.forEach(function (funcArg) {
          if (funcArg in arg && typeof arg[funcArg] === 'function') {
            arg[funcArg] = {
              type: 'func',
              func: arg[funcArg].toString()
            };
          }
        });
      }
    });
    return JSON.stringify(args);
  };
  
  exports.padInt = function padInt(i, len) {
    var res = i.toString();
    while (res.length < len) {
      res = '0' + res;
    }
    return res;
  };
  
  
  exports.adapterFun = function adapterFun(name, callback) {
  
    function logApiCall(self, name, args) {
      if (!log.enabled) {
        return;
      }
      // db.name was added in pouch 6.0.0
      var dbName = self.name || self._db_name;
      var logArgs = [dbName, name];
      for (var i = 0; i < args.length - 1; i++) {
        logArgs.push(args[i]);
      }
      log.apply(null, logArgs);
  
      // override the callback itself to log the response
      var origCallback = args[args.length - 1];
      args[args.length - 1] = function (err, res) {
        var responseArgs = [dbName, name];
        responseArgs = responseArgs.concat(
          err ? ['error', err] : ['success', res]
        );
        log.apply(null, responseArgs);
        origCallback(err, res);
      };
    }
  
  
    return utils.toPromise(utils.getArguments(function (args) {
      if (this._closed) {
        return utils.Promise.reject(new Error('database is closed'));
      }
      var self = this;
      logApiCall(self, name, args);
      if (!this.taskqueue.isReady) {
        return new utils.Promise(function (fulfill, reject) {
          self.taskqueue.addTask(function (failed) {
            if (failed) {
              reject(failed);
            } else {
              fulfill(self[name].apply(self, args));
            }
          });
        });
      }
      return callback.apply(this, args);
    }));
  };
  }).call(this,_dereq_('_process'))
  },{"../shared/utils":17,"./base64StringToBlobOrBuffer":4,"_process":74,"debug":28}],11:[function(_dereq_,module,exports){
  // hey guess what, we don't need this in the browser
  module.exports = {};
  },{}],12:[function(_dereq_,module,exports){
  'use strict';
  
  function cloneArrayBuffer(buff) {
    if (typeof buff.slice === 'function') {
      return buff.slice(0);
    }
    // IE10-11 slice() polyfill
    var target = new ArrayBuffer(buff.byteLength);
    var targetArray = new Uint8Array(target);
    var sourceArray = new Uint8Array(buff);
    targetArray.set(sourceArray);
    return target;
  }
  
  module.exports = function cloneBinaryObject(object) {
    if (object instanceof ArrayBuffer) {
      return cloneArrayBuffer(object);
    }
    var size = object.size;
    var type = object.type;
    // Blob
    if (typeof object.slice === 'function') {
      return object.slice(0, size, type);
    }
    // PhantomJS slice() replacement
    return object.webkitSlice(0, size, type);
  };
  
  },{}],13:[function(_dereq_,module,exports){
  "use strict";
  
  var inherits = _dereq_('inherits');
  inherits(PouchError, Error);
  
  function PouchError(opts) {
    Error.call(opts.reason);
    this.status = opts.status;
    this.name = opts.error;
    this.message = opts.reason;
    this.error = true;
  }
  
  PouchError.prototype.toString = function () {
    return JSON.stringify({
      status: this.status,
      name: this.name,
      message: this.message
    });
  };
  
  exports.UNAUTHORIZED = new PouchError({
    status: 401,
    error: 'unauthorized',
    reason: "Name or password is incorrect."
  });
  
  exports.MISSING_BULK_DOCS = new PouchError({
    status: 400,
    error: 'bad_request',
    reason: "Missing JSON list of 'docs'"
  });
  
  exports.MISSING_DOC = new PouchError({
    status: 404,
    error: 'not_found',
    reason: 'missing'
  });
  
  exports.REV_CONFLICT = new PouchError({
    status: 409,
    error: 'conflict',
    reason: 'Document update conflict'
  });
  
  exports.INVALID_ID = new PouchError({
    status: 400,
    error: 'invalid_id',
    reason: '_id field must contain a string'
  });
  
  exports.MISSING_ID = new PouchError({
    status: 412,
    error: 'missing_id',
    reason: '_id is required for puts'
  });
  
  exports.RESERVED_ID = new PouchError({
    status: 400,
    error: 'bad_request',
    reason: 'Only reserved document ids may start with underscore.'
  });
  
  exports.NOT_OPEN = new PouchError({
    status: 412,
    error: 'precondition_failed',
    reason: 'Database not open'
  });
  
  exports.UNKNOWN_ERROR = new PouchError({
    status: 500,
    error: 'unknown_error',
    reason: 'Database encountered an unknown error'
  });
  
  exports.BAD_ARG = new PouchError({
    status: 500,
    error: 'badarg',
    reason: 'Some query argument is invalid'
  });
  
  exports.INVALID_REQUEST = new PouchError({
    status: 400,
    error: 'invalid_request',
    reason: 'Request was invalid'
  });
  
  exports.QUERY_PARSE_ERROR = new PouchError({
    status: 400,
    error: 'query_parse_error',
    reason: 'Some query parameter is invalid'
  });
  
  exports.DOC_VALIDATION = new PouchError({
    status: 500,
    error: 'doc_validation',
    reason: 'Bad special document member'
  });
  
  exports.BAD_REQUEST = new PouchError({
    status: 400,
    error: 'bad_request',
    reason: 'Something wrong with the request'
  });
  
  exports.NOT_AN_OBJECT = new PouchError({
    status: 400,
    error: 'bad_request',
    reason: 'Document must be a JSON object'
  });
  
  exports.DB_MISSING = new PouchError({
    status: 404,
    error: 'not_found',
    reason: 'Database not found'
  });
  
  exports.IDB_ERROR = new PouchError({
    status: 500,
    error: 'indexed_db_went_bad',
    reason: 'unknown'
  });
  
  exports.WSQ_ERROR = new PouchError({
    status: 500,
    error: 'web_sql_went_bad',
    reason: 'unknown'
  });
  
  exports.LDB_ERROR = new PouchError({
    status: 500,
    error: 'levelDB_went_went_bad',
    reason: 'unknown'
  });
  
  exports.FORBIDDEN = new PouchError({
    status: 403,
    error: 'forbidden',
    reason: 'Forbidden by design doc validate_doc_update function'
  });
  
  exports.INVALID_REV = new PouchError({
    status: 400,
    error: 'bad_request',
    reason: 'Invalid rev format'
  });
  
  exports.FILE_EXISTS = new PouchError({
    status: 412,
    error: 'file_exists',
    reason: 'The database could not be created, the file already exists.'
  });
  
  exports.MISSING_STUB = new PouchError({
    status: 412,
    error: 'missing_stub'
  });
  
  exports.error = function (error, reason, name) {
    function CustomPouchError(reason) {
      // inherit error properties from our parent error manually
      // so as to allow proper JSON parsing.
      /* jshint ignore:start */
      for (var p in error) {
        if (typeof error[p] !== 'function') {
          this[p] = error[p];
        }
      }
      /* jshint ignore:end */
      if (name !== undefined) {
        this.name = name;
      }
      if (reason !== undefined) {
        this.reason = reason;
      }
    }
    CustomPouchError.prototype = PouchError.prototype;
    return new CustomPouchError(reason);
  };
  
  // Find one of the errors defined above based on the value
  // of the specified property.
  // If reason is provided prefer the error matching that reason.
  // This is for differentiating between errors with the same name and status,
  // eg, bad_request.
  exports.getErrorTypeByProp = function (prop, value, reason) {
    var errors = exports;
    var keys = Object.keys(errors).filter(function (key) {
      var error = errors[key];
      return typeof error !== 'function' && error[prop] === value;
    });
    var key = reason && keys.filter(function (key) {
        var error = errors[key];
        return error.message === reason;
      })[0] || keys[0];
    return (key) ? errors[key] : null;
  };
  
  exports.generateErrorFromResponse = function (res) {
    var error, errName, errType, errMsg, errReason;
    var errors = exports;
  
    errName = (res.error === true && typeof res.name === 'string') ?
      res.name :
      res.error;
    errReason = res.reason;
    errType = errors.getErrorTypeByProp('name', errName, errReason);
  
    if (res.missing ||
      errReason === 'missing' ||
      errReason === 'deleted' ||
      errName === 'not_found') {
      errType = errors.MISSING_DOC;
    } else if (errName === 'doc_validation') {
      // doc validation needs special treatment since
      // res.reason depends on the validation error.
      // see utils.js
      errType = errors.DOC_VALIDATION;
      errMsg = errReason;
    } else if (errName === 'bad_request' && errType.message !== errReason) {
      // if bad_request error already found based on reason don't override.
  
      // attachment errors.
      if (errReason.indexOf('unknown stub attachment') === 0) {
        errType = errors.MISSING_STUB;
        errMsg = errReason;
      } else {
        errType = errors.BAD_REQUEST;
      }
    }
  
    // fallback to error by statys or unknown error.
    if (!errType) {
      errType = errors.getErrorTypeByProp('status', res.status, errReason) ||
      errors.UNKNOWN_ERROR;
    }
  
    error = errors.error(errType, errReason, errName);
  
    // Keep custom message.
    if (errMsg) {
      error.message = errMsg;
    }
  
    // Keep helpful response data in our error messages.
    if (res.id) {
      error.id = res.id;
    }
    if (res.status) {
      error.status = res.status;
    }
    if (res.statusText) {
      error.name = res.statusText;
    }
    if (res.missing) {
      error.missing = res.missing;
    }
  
    return error;
  };
  
  },{"inherits":51}],14:[function(_dereq_,module,exports){
  'use strict';
  
  module.exports = function isBinaryObject(object) {
    return object instanceof ArrayBuffer ||
      (typeof Blob !== 'undefined' && object instanceof Blob);
  };
  },{}],15:[function(_dereq_,module,exports){
  'use strict';
  
  function parseMessage(msg, numArgs) {
    var res = [];
    for (var i = 0; i < numArgs - 1; i++) {
      var idx = msg.indexOf(':');
      res.push(msg.substring(0, idx));
      msg = msg.substring(idx + 1);
    }
    res.push(msg);
    return res;
  }
  
  module.exports = parseMessage;
  },{}],16:[function(_dereq_,module,exports){
  'use strict';
  
  var isBinaryObject = _dereq_('./isBinaryObject');
  var cloneBinaryObject = _dereq_('./cloneBinaryObject');
  
  module.exports = function clone(object) {
    var newObject;
    var i;
    var len;
  
    if (!object || typeof object !== 'object') {
      return object;
    }
  
    if (Array.isArray(object)) {
      newObject = [];
      for (i = 0, len = object.length; i < len; i++) {
        newObject[i] = clone(object[i]);
      }
      return newObject;
    }
  
    // special case: to avoid inconsistencies between IndexedDB
    // and other backends, we automatically stringify Dates
    if (object instanceof Date) {
      return object.toISOString();
    }
  
    if (isBinaryObject(object)) {
      return cloneBinaryObject(object);
    }
  
    newObject = {};
    for (i in object) {
      if (Object.prototype.hasOwnProperty.call(object, i)) {
        var value = clone(object[i]);
        if (typeof value !== 'undefined') {
          newObject[i] = value;
        }
      }
    }
    return newObject;
  };
  
  },{"./cloneBinaryObject":12,"./isBinaryObject":14}],17:[function(_dereq_,module,exports){
  (function (process){
  'use strict';
  
  var Promise = _dereq_('pouchdb-promise');
  var buffer = _dereq_('./buffer');
  
  exports.lastIndexOf = function lastIndexOf(str, char) {
    for (var i = str.length - 1; i >= 0; i--) {
      if (str.charAt(i) === char) {
        return i;
      }
    }
    return -1;
  };
  
  exports.clone = _dereq_('./pouchdb-clone');
  
  exports.parseMessage = _dereq_('./parse-message');
  
  /* istanbul ignore next */
  exports.once = function once(fun) {
    var called = false;
    return exports.getArguments(function (args) {
      if (called) {
        console.trace();
        throw new Error('once called  more than once');
      } else {
        called = true;
        fun.apply(this, args);
      }
    });
  };
  /* istanbul ignore next */
  exports.getArguments = function getArguments(fun) {
    return function () {
      var len = arguments.length;
      var args = new Array(len);
      var i = -1;
      while (++i < len) {
        args[i] = arguments[i];
      }
      return fun.call(this, args);
    };
  };
  /* istanbul ignore next */
  exports.toPromise = function toPromise(func) {
    //create the function we will be returning
    return exports.getArguments(function (args) {
      var self = this;
      var tempCB = (typeof args[args.length - 1] === 'function') ? args.pop() : false;
      // if the last argument is a function, assume its a callback
      var usedCB;
      if (tempCB) {
        // if it was a callback, create a new callback which calls it,
        // but do so async so we don't trap any errors
        usedCB = function (err, resp) {
          process.nextTick(function () {
            tempCB(err, resp);
          });
        };
      }
      var promise = new Promise(function (fulfill, reject) {
        try {
          var callback = exports.once(function (err, mesg) {
            if (err) {
              reject(err);
            } else {
              fulfill(mesg);
            }
          });
          // create a callback for this invocation
          // apply the function in the orig context
          args.push(callback);
          func.apply(self, args);
        } catch (e) {
          reject(e);
        }
      });
      // if there is a callback, call it back
      if (usedCB) {
        promise.then(function (result) {
          usedCB(null, result);
        }, usedCB);
      }
      promise.cancel = function () {
        return this;
      };
      return promise;
    });
  };
  
  if (typeof atob === 'function') {
    exports.atob = function atobShim(str) {
      return atob(str);
    };
  } else {
    exports.atob = function atobShim(str) {
      var base64 = new buffer(str, 'base64');
      // Node.js will just skip the characters it can't encode instead of
      // throwing and exception
      if (base64.toString('base64') !== str) {
        throw ("Cannot base64 encode full string");
      }
      return base64.toString('binary');
    };
  }
  
  if (typeof btoa === 'function') {
    exports.btoa = function btoaShim(str) {
      return btoa(str);
    };
  } else {
    exports.btoa = function btoaShim(str) {
      return new buffer(str, 'binary').toString('base64');
    };
  }
  
  exports.inherits = _dereq_('inherits');
  exports.Promise = Promise;
  
  var binUtil = _dereq_('pouchdb-binary-util');
  
  exports.createBlob = binUtil.createBlob;
  exports.readAsArrayBuffer = binUtil.readAsArrayBuffer;
  exports.readAsBinaryString = binUtil.readAsBinaryString;
  exports.binaryStringToArrayBuffer = binUtil.binaryStringToArrayBuffer;
  exports.arrayBufferToBinaryString = binUtil.arrayBufferToBinaryString;
  }).call(this,_dereq_('_process'))
  },{"./buffer":11,"./parse-message":15,"./pouchdb-clone":16,"_process":74,"inherits":51,"pouchdb-binary-util":71,"pouchdb-promise":72}],18:[function(_dereq_,module,exports){
  "use strict";
  
  // BEGIN Math.uuid.js
  
  /*!
   Math.uuid.js (v1.4)
   http://www.broofa.com
   mailto:robert@broofa.com
  
   Copyright (c) 2010 Robert Kieffer
   Dual licensed under the MIT and GPL licenses.
   */
  
  /*
   * Generate a random uuid.
   *
   * USAGE: Math.uuid(length, radix)
   *   length - the desired number of characters
   *   radix  - the number of allowable values for each character.
   *
   * EXAMPLES:
   *   // No arguments  - returns RFC4122, version 4 ID
   *   >>> Math.uuid()
   *   "92329D39-6F5C-4520-ABFC-AAB64544E172"
   *
   *   // One argument - returns ID of the specified length
   *   >>> Math.uuid(15)     // 15 character ID (default base=62)
   *   "VcydxgltxrVZSTV"
   *
   *   // Two arguments - returns ID of the specified length, and radix. 
   *   // (Radix must be <= 62)
   *   >>> Math.uuid(8, 2)  // 8 character ID (base=2)
   *   "01001010"
   *   >>> Math.uuid(8, 10) // 8 character ID (base=10)
   *   "47473046"
   *   >>> Math.uuid(8, 16) // 8 character ID (base=16)
   *   "098F4D35"
   */
  var chars = (
  '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ' +
  'abcdefghijklmnopqrstuvwxyz'
  ).split('');
  function getValue(radix) {
    return 0 | Math.random() * radix;
  }
  function uuid(len, radix) {
    radix = radix || chars.length;
    var out = '';
    var i = -1;
  
    if (len) {
      // Compact form
      while (++i < len) {
        out += chars[getValue(radix)];
      }
      return out;
    }
    // rfc4122, version 4 form
    // Fill in random data.  At i==19 set the high bits of clock sequence as
    // per rfc4122, sec. 4.1.5
    while (++i < 36) {
      switch (i) {
        case 8:
        case 13:
        case 18:
        case 23:
          out += '-';
          break;
        case 19:
          out += chars[(getValue(16) & 0x3) | 0x8];
          break;
        default:
          out += chars[getValue(16)];
      }
    }
  
    return out;
  }
  
  
  
  module.exports = uuid;
  
  
  },{}],19:[function(_dereq_,module,exports){
  module.exports = after
  
  function after(count, callback, err_cb) {
      var bail = false
      err_cb = err_cb || noop
      proxy.count = count
  
      return (count === 0) ? callback() : proxy
  
      function proxy(err, result) {
          if (proxy.count <= 0) {
              throw new Error('after called too many times')
          }
          --proxy.count
  
          // after first error, rest are passed to err_cb
          if (err) {
              bail = true
              callback(err)
              // future error callbacks will go to error handler
              callback = err_cb
          } else if (proxy.count === 0 && !bail) {
              callback(null, result)
          }
      }
  }
  
  function noop() {}
  
  },{}],20:[function(_dereq_,module,exports){
  /**
   * An abstraction for slicing an arraybuffer even when
   * ArrayBuffer.prototype.slice is not supported
   *
   * @api public
   */
  
  module.exports = function(arraybuffer, start, end) {
    var bytes = arraybuffer.byteLength;
    start = start || 0;
    end = end || bytes;
  
    if (arraybuffer.slice) { return arraybuffer.slice(start, end); }
  
    if (start < 0) { start += bytes; }
    if (end < 0) { end += bytes; }
    if (end > bytes) { end = bytes; }
  
    if (start >= bytes || start >= end || bytes === 0) {
      return new ArrayBuffer(0);
    }
  
    var abv = new Uint8Array(arraybuffer);
    var result = new Uint8Array(end - start);
    for (var i = start, ii = 0; i < end; i++, ii++) {
      result[ii] = abv[i];
    }
    return result.buffer;
  };
  
  },{}],21:[function(_dereq_,module,exports){
  /*
   * base64-arraybuffer
   * https://github.com/niklasvh/base64-arraybuffer
   *
   * Copyright (c) 2012 Niklas von Hertzen
   * Licensed under the MIT license.
   */
  (function(){
    "use strict";
  
    var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
  
    // Use a lookup table to find the index.
    var lookup = new Uint8Array(256);
    for (var i = 0; i < chars.length; i++) {
      lookup[chars.charCodeAt(i)] = i;
    }
  
    exports.encode = function(arraybuffer) {
      var bytes = new Uint8Array(arraybuffer),
      i, len = bytes.length, base64 = "";
  
      for (i = 0; i < len; i+=3) {
        base64 += chars[bytes[i] >> 2];
        base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
        base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
        base64 += chars[bytes[i + 2] & 63];
      }
  
      if ((len % 3) === 2) {
        base64 = base64.substring(0, base64.length - 1) + "=";
      } else if (len % 3 === 1) {
        base64 = base64.substring(0, base64.length - 2) + "==";
      }
  
      return base64;
    };
  
    exports.decode =  function(base64) {
      var bufferLength = base64.length * 0.75,
      len = base64.length, i, p = 0,
      encoded1, encoded2, encoded3, encoded4;
  
      if (base64[base64.length - 1] === "=") {
        bufferLength--;
        if (base64[base64.length - 2] === "=") {
          bufferLength--;
        }
      }
  
      var arraybuffer = new ArrayBuffer(bufferLength),
      bytes = new Uint8Array(arraybuffer);
  
      for (i = 0; i < len; i+=4) {
        encoded1 = lookup[base64.charCodeAt(i)];
        encoded2 = lookup[base64.charCodeAt(i+1)];
        encoded3 = lookup[base64.charCodeAt(i+2)];
        encoded4 = lookup[base64.charCodeAt(i+3)];
  
        bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
        bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
        bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
      }
  
      return arraybuffer;
    };
  })();
  
  },{}],22:[function(_dereq_,module,exports){
  
  /**
   * Slice reference.
   */
  
  var slice = [].slice;
  
  /**
   * Bind `obj` to `fn`.
   *
   * @param {Object} obj
   * @param {Function|String} fn or string
   * @return {Function}
   * @api public
   */
  
  module.exports = function(obj, fn){
    if ('string' == typeof fn) fn = obj[fn];
    if ('function' != typeof fn) throw new Error('bind() requires a function');
    var args = [].slice.call(arguments, 2);
    return function(){
      return fn.apply(obj, args.concat(slice.call(arguments)));
    }
  };
  
  },{}],23:[function(_dereq_,module,exports){
  'use strict';
  
  /* jshint -W079 */
  var Blob = _dereq_('blob');
  var Promise = _dereq_('native-or-lie');
  
  //
  // PRIVATE
  //
  
  // From http://stackoverflow.com/questions/14967647/ (continues on next line)
  // encode-decode-image-with-base64-breaks-image (2013-04-21)
  function binaryStringToArrayBuffer(binary) {
    var length = binary.length;
    var buf = new ArrayBuffer(length);
    var arr = new Uint8Array(buf);
    var i = -1;
    while (++i < length) {
      arr[i] = binary.charCodeAt(i);
    }
    return buf;
  }
  
  // Can't find original post, but this is close
  // http://stackoverflow.com/questions/6965107/ (continues on next line)
  // converting-between-strings-and-arraybuffers
  function arrayBufferToBinaryString(buffer) {
    var binary = '';
    var bytes = new Uint8Array(buffer);
    var length = bytes.byteLength;
    var i = -1;
    while (++i < length) {
      binary += String.fromCharCode(bytes[i]);
    }
    return binary;
  }
  
  // doesn't download the image more than once, because
  // browsers aren't dumb. uses the cache
  function loadImage(src, crossOrigin) {
    return new Promise(function (resolve, reject) {
      var img = new Image();
      if (crossOrigin) {
        img.crossOrigin = crossOrigin;
      }
      img.onload = function () {
        resolve(img);
      };
      img.onerror = reject;
      img.src = src;
    });
  }
  
  function imgToCanvas(img) {
    var canvas = document.createElement('canvas');
  
    canvas.width = img.width;
    canvas.height = img.height;
  
    // copy the image contents to the canvas
    var context = canvas.getContext('2d');
    context.drawImage(
      img,
      0, 0,
      img.width, img.height,
      0, 0,
      img.width, img.height);
  
    return canvas;
  }
  
  //
  // PUBLIC
  //
  
  /**
   * Shim for
   * [new Blob()]{@link https://developer.mozilla.org/en-US/docs/Web/API/Blob.Blob}
   * to support
   * [older browsers that use the deprecated <code>BlobBuilder</code> API]{@link http://caniuse.com/blob}.
   *
   * @param {Array} parts - content of the <code>Blob</code>
   * @param {Object} options - usually just <code>{type: myContentType}</code>
   * @returns {Blob}
   */
  function createBlob(parts, options) {
    options = options || {};
    if (typeof options === 'string') {
      options = {type: options}; // do you a solid here
    }
    return new Blob(parts, options);
  }
  
  /**
   * Shim for
   * [URL.createObjectURL()]{@link https://developer.mozilla.org/en-US/docs/Web/API/URL.createObjectURL}
   * to support browsers that only have the prefixed
   * <code>webkitURL</code> (e.g. Android <4.4).
   * @param {Blob} blob
   * @returns {string} url
   */
  function createObjectURL(blob) {
    return (window.URL || window.webkitURL).createObjectURL(blob);
  }
  
  /**
   * Shim for
   * [URL.revokeObjectURL()]{@link https://developer.mozilla.org/en-US/docs/Web/API/URL.revokeObjectURL}
   * to support browsers that only have the prefixed
   * <code>webkitURL</code> (e.g. Android <4.4).
   * @param {string} url
   */
  function revokeObjectURL(url) {
    return (window.URL || window.webkitURL).revokeObjectURL(url);
  }
  
  /**
   * Convert a <code>Blob</code> to a binary string. Returns a Promise.
   *
   * @param {Blob} blob
   * @returns {Promise} Promise that resolves with the binary string
   */
  function blobToBinaryString(blob) {
    return new Promise(function (resolve, reject) {
      var reader = new FileReader();
      var hasBinaryString = typeof reader.readAsBinaryString === 'function';
      reader.onloadend = function (e) {
        var result = e.target.result || '';
        if (hasBinaryString) {
          return resolve(result);
        }
        resolve(arrayBufferToBinaryString(result));
      };
      reader.onerror = reject;
      if (hasBinaryString) {
        reader.readAsBinaryString(blob);
      } else {
        reader.readAsArrayBuffer(blob);
      }
    });
  }
  
  /**
   * Convert a base64-encoded string to a <code>Blob</code>. Returns a Promise.
   * @param {string} base64
   * @param {string|undefined} type - the content type (optional)
   * @returns {Promise} Promise that resolves with the <code>Blob</code>
   */
  function base64StringToBlob(base64, type) {
    return Promise.resolve().then(function () {
      var parts = [binaryStringToArrayBuffer(atob(base64))];
      return type ? createBlob(parts, {type: type}) : createBlob(parts);
    });
  }
  
  /**
   * Convert a binary string to a <code>Blob</code>. Returns a Promise.
   * @param {string} binary
   * @param {string|undefined} type - the content type (optional)
   * @returns {Promise} Promise that resolves with the <code>Blob</code>
   */
  function binaryStringToBlob(binary, type) {
    return Promise.resolve().then(function () {
      return base64StringToBlob(btoa(binary), type);
    });
  }
  
  /**
   * Convert a <code>Blob</code> to a binary string. Returns a Promise.
   * @param {Blob} blob
   * @returns {Promise} Promise that resolves with the binary string
   */
  function blobToBase64String(blob) {
    return blobToBinaryString(blob).then(function (binary) {
      return btoa(binary);
    });
  }
  
  /**
   * Convert a data URL string
   * (e.g. <code>'data:image/png;base64,iVBORw0KG...'</code>)
   * to a <code>Blob</code>. Returns a Promise.
   * @param {string} dataURL
   * @returns {Promise} Promise that resolves with the <code>Blob</code>
   */
  function dataURLToBlob(dataURL) {
    return Promise.resolve().then(function () {
      var type = dataURL.match(/data:([^;]+)/)[1];
      var base64 = dataURL.replace(/^[^,]+,/, '');
  
      var buff = binaryStringToArrayBuffer(atob(base64));
      return createBlob([buff], {type: type});
    });
  }
  
  /**
   * Convert a <code>Blob</code> to a data URL string
   * (e.g. <code>'data:image/png;base64,iVBORw0KG...'</code>).
   * Returns a Promise.
   * @param {Blob} blob
   * @returns {Promise} Promise that resolves with the data URL string
   */
  function blobToDataURL(blob) {
    return blobToBase64String(blob).then(function (base64String) {
      return 'data:' + blob.type + ';base64,' + base64String;
    });
  }
  
  /**
   * Convert an image's <code>src</code> URL to a data URL by loading the image and painting
   * it to a <code>canvas</code>. Returns a Promise.
   *
   * <p/>Note: this will coerce the image to the desired content type, and it
   * will only paint the first frame of an animated GIF.
   *
   * @param {string} src
   * @param {string|undefined} type - the content type (optional, defaults to 'image/png')
   * @param {string|undefined} crossOrigin - for CORS-enabled images, set this to
   *                                         'Anonymous' to avoid "tainted canvas" errors
   * @param {number|undefined} quality - a number between 0 and 1 indicating image quality
   *                                     if the requested type is 'image/jpeg' or 'image/webp'
   * @returns {Promise} Promise that resolves with the data URL string
   */
  function imgSrcToDataURL(src, type, crossOrigin, quality) {
    type = type || 'image/png';
  
    return loadImage(src, crossOrigin).then(function (img) {
      return imgToCanvas(img);
    }).then(function (canvas) {
      return canvas.toDataURL(type, quality);
    });
  }
  
  /**
   * Convert a <code>canvas</code> to a <code>Blob</code>. Returns a Promise.
   * @param {string} canvas
   * @param {string|undefined} type - the content type (optional, defaults to 'image/png')
   * @param {number|undefined} quality - a number between 0 and 1 indicating image quality
   *                                     if the requested type is 'image/jpeg' or 'image/webp'
   * @returns {Promise} Promise that resolves with the <code>Blob</code>
   */
  function canvasToBlob(canvas, type, quality) {
    return Promise.resolve().then(function () {
      if (typeof canvas.toBlob === 'function') {
        return new Promise(function (resolve) {
          canvas.toBlob(resolve, type, quality);
        });
      }
      return dataURLToBlob(canvas.toDataURL(type, quality));
    });
  }
  
  /**
   * Convert an image's <code>src</code> URL to a <code>Blob</code> by loading the image and painting
   * it to a <code>canvas</code>. Returns a Promise.
   *
   * <p/>Note: this will coerce the image to the desired content type, and it
   * will only paint the first frame of an animated GIF.
   *
   * @param {string} src
   * @param {string|undefined} type - the content type (optional, defaults to 'image/png')
   * @param {string|undefined} crossOrigin - for CORS-enabled images, set this to
   *                                         'Anonymous' to avoid "tainted canvas" errors
   * @param {number|undefined} quality - a number between 0 and 1 indicating image quality
   *                                     if the requested type is 'image/jpeg' or 'image/webp'
   * @returns {Promise} Promise that resolves with the <code>Blob</code>
   */
  function imgSrcToBlob(src, type, crossOrigin, quality) {
    type = type || 'image/png';
  
    return loadImage(src, crossOrigin).then(function (img) {
      return imgToCanvas(img);
    }).then(function (canvas) {
      return canvasToBlob(canvas, type, quality);
    });
  }
  
  /**
   * Convert an <code>ArrayBuffer</code> to a <code>Blob</code>. Returns a Promise.
   *
   * @param {ArrayBuffer} buffer
   * @param {string|undefined} type - the content type (optional)
   * @returns {Promise} Promise that resolves with the <code>Blob</code>
   */
  function arrayBufferToBlob(buffer, type) {
    return Promise.resolve().then(function () {
      return createBlob([buffer], type);
    });
  }
  
  /**
   * Convert a <code>Blob</code> to an <code>ArrayBuffer</code>. Returns a Promise.
   * @param {Blob} blob
   * @returns {Promise} Promise that resolves with the <code>ArrayBuffer</code>
   */
  function blobToArrayBuffer(blob) {
    return new Promise(function (resolve, reject) {
      var reader = new FileReader();
      reader.onloadend = function (e) {
        var result = e.target.result || new ArrayBuffer(0);
        resolve(result);
      };
      reader.onerror = reject;
      reader.readAsArrayBuffer(blob);
    });
  }
  
  module.exports = {
    createBlob         : createBlob,
    createObjectURL    : createObjectURL,
    revokeObjectURL    : revokeObjectURL,
    imgSrcToBlob       : imgSrcToBlob,
    imgSrcToDataURL    : imgSrcToDataURL,
    canvasToBlob       : canvasToBlob,
    dataURLToBlob      : dataURLToBlob,
    blobToDataURL      : blobToDataURL,
    blobToBase64String : blobToBase64String,
    base64StringToBlob : base64StringToBlob,
    binaryStringToBlob : binaryStringToBlob,
    blobToBinaryString : blobToBinaryString,
    arrayBufferToBlob  : arrayBufferToBlob,
    blobToArrayBuffer  : blobToArrayBuffer
  };
  
  },{"blob":24,"native-or-lie":67}],24:[function(_dereq_,module,exports){
  (function (global){
  /**
   * Create a blob builder even when vendor prefixes exist
   */
  
  var BlobBuilder = global.BlobBuilder
    || global.WebKitBlobBuilder
    || global.MSBlobBuilder
    || global.MozBlobBuilder;
  
  /**
   * Check if Blob constructor is supported
   */
  
  var blobSupported = (function() {
    try {
      var a = new Blob(['hi']);
      return a.size === 2;
    } catch(e) {
      return false;
    }
  })();
  
  /**
   * Check if Blob constructor supports ArrayBufferViews
   * Fails in Safari 6, so we need to map to ArrayBuffers there.
   */
  
  var blobSupportsArrayBufferView = blobSupported && (function() {
    try {
      var b = new Blob([new Uint8Array([1,2])]);
      return b.size === 2;
    } catch(e) {
      return false;
    }
  })();
  
  /**
   * Check if BlobBuilder is supported
   */
  
  var blobBuilderSupported = BlobBuilder
    && BlobBuilder.prototype.append
    && BlobBuilder.prototype.getBlob;
  
  /**
   * Helper function that maps ArrayBufferViews to ArrayBuffers
   * Used by BlobBuilder constructor and old browsers that didn't
   * support it in the Blob constructor.
   */
  
  function mapArrayBufferViews(ary) {
    for (var i = 0; i < ary.length; i++) {
      var chunk = ary[i];
      if (chunk.buffer instanceof ArrayBuffer) {
        var buf = chunk.buffer;
  
        // if this is a subarray, make a copy so we only
        // include the subarray region from the underlying buffer
        if (chunk.byteLength !== buf.byteLength) {
          var copy = new Uint8Array(chunk.byteLength);
          copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));
          buf = copy.buffer;
        }
  
        ary[i] = buf;
      }
    }
  }
  
  function BlobBuilderConstructor(ary, options) {
    options = options || {};
  
    var bb = new BlobBuilder();
    mapArrayBufferViews(ary);
  
    for (var i = 0; i < ary.length; i++) {
      bb.append(ary[i]);
    }
  
    return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
  };
  
  function BlobConstructor(ary, options) {
    mapArrayBufferViews(ary);
    return new Blob(ary, options || {});
  };
  
  module.exports = (function() {
    if (blobSupported) {
      return blobSupportsArrayBufferView ? global.Blob : BlobConstructor;
    } else if (blobBuilderSupported) {
      return BlobBuilderConstructor;
    } else {
      return undefined;
    }
  })();
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{}],25:[function(_dereq_,module,exports){
  
  },{}],26:[function(_dereq_,module,exports){
  
  /**
   * Expose `Emitter`.
   */
  
  if (typeof module !== 'undefined') {
    module.exports = Emitter;
  }
  
  /**
   * Initialize a new `Emitter`.
   *
   * @api public
   */
  
  function Emitter(obj) {
    if (obj) return mixin(obj);
  };
  
  /**
   * Mixin the emitter properties.
   *
   * @param {Object} obj
   * @return {Object}
   * @api private
   */
  
  function mixin(obj) {
    for (var key in Emitter.prototype) {
      obj[key] = Emitter.prototype[key];
    }
    return obj;
  }
  
  /**
   * Listen on the given `event` with `fn`.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */
  
  Emitter.prototype.on =
  Emitter.prototype.addEventListener = function(event, fn){
    this._callbacks = this._callbacks || {};
    (this._callbacks['$' + event] = this._callbacks['$' + event] || [])
      .push(fn);
    return this;
  };
  
  /**
   * Adds an `event` listener that will be invoked a single
   * time then automatically removed.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */
  
  Emitter.prototype.once = function(event, fn){
    function on() {
      this.off(event, on);
      fn.apply(this, arguments);
    }
  
    on.fn = fn;
    this.on(event, on);
    return this;
  };
  
  /**
   * Remove the given callback for `event` or all
   * registered callbacks.
   *
   * @param {String} event
   * @param {Function} fn
   * @return {Emitter}
   * @api public
   */
  
  Emitter.prototype.off =
  Emitter.prototype.removeListener =
  Emitter.prototype.removeAllListeners =
  Emitter.prototype.removeEventListener = function(event, fn){
    this._callbacks = this._callbacks || {};
  
    // all
    if (0 == arguments.length) {
      this._callbacks = {};
      return this;
    }
  
    // specific event
    var callbacks = this._callbacks['$' + event];
    if (!callbacks) return this;
  
    // remove all handlers
    if (1 == arguments.length) {
      delete this._callbacks['$' + event];
      return this;
    }
  
    // remove specific handler
    var cb;
    for (var i = 0; i < callbacks.length; i++) {
      cb = callbacks[i];
      if (cb === fn || cb.fn === fn) {
        callbacks.splice(i, 1);
        break;
      }
    }
    return this;
  };
  
  /**
   * Emit `event` with the given args.
   *
   * @param {String} event
   * @param {Mixed} ...
   * @return {Emitter}
   */
  
  Emitter.prototype.emit = function(event){
    this._callbacks = this._callbacks || {};
    var args = [].slice.call(arguments, 1)
      , callbacks = this._callbacks['$' + event];
  
    if (callbacks) {
      callbacks = callbacks.slice(0);
      for (var i = 0, len = callbacks.length; i < len; ++i) {
        callbacks[i].apply(this, args);
      }
    }
  
    return this;
  };
  
  /**
   * Return array of callbacks for `event`.
   *
   * @param {String} event
   * @return {Array}
   * @api public
   */
  
  Emitter.prototype.listeners = function(event){
    this._callbacks = this._callbacks || {};
    return this._callbacks['$' + event] || [];
  };
  
  /**
   * Check if this emitter has `event` handlers.
   *
   * @param {String} event
   * @return {Boolean}
   * @api public
   */
  
  Emitter.prototype.hasListeners = function(event){
    return !! this.listeners(event).length;
  };
  
  },{}],27:[function(_dereq_,module,exports){
  
  module.exports = function(a, b){
    var fn = function(){};
    fn.prototype = b.prototype;
    a.prototype = new fn;
    a.prototype.constructor = a;
  };
  },{}],28:[function(_dereq_,module,exports){
  (function (process){
  /**
   * This is the web browser implementation of `debug()`.
   *
   * Expose `debug()` as the module.
   */
  
  exports = module.exports = _dereq_('./debug');
  exports.log = log;
  exports.formatArgs = formatArgs;
  exports.save = save;
  exports.load = load;
  exports.useColors = useColors;
  exports.storage = 'undefined' != typeof chrome
                 && 'undefined' != typeof chrome.storage
                    ? chrome.storage.local
                    : localstorage();
  
  /**
   * Colors.
   */
  
  exports.colors = [
    'lightseagreen',
    'forestgreen',
    'goldenrod',
    'dodgerblue',
    'darkorchid',
    'crimson'
  ];
  
  /**
   * Currently only WebKit-based Web Inspectors, Firefox >= v31,
   * and the Firebug extension (any Firefox version) are known
   * to support "%c" CSS customizations.
   *
   * TODO: add a `localStorage` variable to explicitly enable/disable colors
   */
  
  function useColors() {
    // NB: In an Electron preload script, document will be defined but not fully
    // initialized. Since we know we're in Chrome, we'll just detect this case
    // explicitly
    if (typeof window !== 'undefined' && window.process && window.process.type === 'renderer') {
      return true;
    }
  
    // is webkit? http://stackoverflow.com/a/16459606/376773
    // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
    return (typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance) ||
      // is firebug? http://stackoverflow.com/a/398120/376773
      (typeof window !== 'undefined' && window.console && (window.console.firebug || (window.console.exception && window.console.table))) ||
      // is firefox >= v31?
      // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
      (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31) ||
      // double check webkit in userAgent just in case we are in a worker
      (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/));
  }
  
  /**
   * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
   */
  
  exports.formatters.j = function(v) {
    try {
      return JSON.stringify(v);
    } catch (err) {
      return '[UnexpectedJSONParseError]: ' + err.message;
    }
  };
  
  
  /**
   * Colorize log arguments if enabled.
   *
   * @api public
   */
  
  function formatArgs(args) {
    var useColors = this.useColors;
  
    args[0] = (useColors ? '%c' : '')
      + this.namespace
      + (useColors ? ' %c' : ' ')
      + args[0]
      + (useColors ? '%c ' : ' ')
      + '+' + exports.humanize(this.diff);
  
    if (!useColors) return;
  
    var c = 'color: ' + this.color;
    args.splice(1, 0, c, 'color: inherit')
  
    // the final "%c" is somewhat tricky, because there could be other
    // arguments passed either before or after the %c, so we need to
    // figure out the correct index to insert the CSS into
    var index = 0;
    var lastC = 0;
    args[0].replace(/%[a-zA-Z%]/g, function(match) {
      if ('%%' === match) return;
      index++;
      if ('%c' === match) {
        // we only are interested in the *last* %c
        // (the user may have provided their own)
        lastC = index;
      }
    });
  
    args.splice(lastC, 0, c);
  }
  
  /**
   * Invokes `console.log()` when available.
   * No-op when `console.log` is not a "function".
   *
   * @api public
   */
  
  function log() {
    // this hackery is required for IE8/9, where
    // the `console.log` function doesn't have 'apply'
    return 'object' === typeof console
      && console.log
      && Function.prototype.apply.call(console.log, console, arguments);
  }
  
  /**
   * Save `namespaces`.
   *
   * @param {String} namespaces
   * @api private
   */
  
  function save(namespaces) {
    try {
      if (null == namespaces) {
        exports.storage.removeItem('debug');
      } else {
        exports.storage.debug = namespaces;
      }
    } catch(e) {}
  }
  
  /**
   * Load `namespaces`.
   *
   * @return {String} returns the previously persisted debug modes
   * @api private
   */
  
  function load() {
    var r;
    try {
      r = exports.storage.debug;
    } catch(e) {}
  
    // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
    if (!r && typeof process !== 'undefined' && 'env' in process) {
      r = process.env.DEBUG;
    }
  
    return r;
  }
  
  /**
   * Enable namespaces listed in `localStorage.debug` initially.
   */
  
  exports.enable(load());
  
  /**
   * Localstorage attempts to return the localstorage.
   *
   * This is necessary because safari throws
   * when a user disables cookies/localstorage
   * and you attempt to access it.
   *
   * @return {LocalStorage}
   * @api private
   */
  
  function localstorage() {
    try {
      return window.localStorage;
    } catch (e) {}
  }
  
  }).call(this,_dereq_('_process'))
  },{"./debug":29,"_process":74}],29:[function(_dereq_,module,exports){
  
  /**
   * This is the common logic for both the Node.js and web browser
   * implementations of `debug()`.
   *
   * Expose `debug()` as the module.
   */
  
  exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
  exports.coerce = coerce;
  exports.disable = disable;
  exports.enable = enable;
  exports.enabled = enabled;
  exports.humanize = _dereq_('ms');
  
  /**
   * The currently active debug mode names, and names to skip.
   */
  
  exports.names = [];
  exports.skips = [];
  
  /**
   * Map of special "%n" handling functions, for the debug "format" argument.
   *
   * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
   */
  
  exports.formatters = {};
  
  /**
   * Previous log timestamp.
   */
  
  var prevTime;
  
  /**
   * Select a color.
   * @param {String} namespace
   * @return {Number}
   * @api private
   */
  
  function selectColor(namespace) {
    var hash = 0, i;
  
    for (i in namespace) {
      hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
      hash |= 0; // Convert to 32bit integer
    }
  
    return exports.colors[Math.abs(hash) % exports.colors.length];
  }
  
  /**
   * Create a debugger with the given `namespace`.
   *
   * @param {String} namespace
   * @return {Function}
   * @api public
   */
  
  function createDebug(namespace) {
  
    function debug() {
      // disabled?
      if (!debug.enabled) return;
  
      var self = debug;
  
      // set `diff` timestamp
      var curr = +new Date();
      var ms = curr - (prevTime || curr);
      self.diff = ms;
      self.prev = prevTime;
      self.curr = curr;
      prevTime = curr;
  
      // turn the `arguments` into a proper Array
      var args = new Array(arguments.length);
      for (var i = 0; i < args.length; i++) {
        args[i] = arguments[i];
      }
  
      args[0] = exports.coerce(args[0]);
  
      if ('string' !== typeof args[0]) {
        // anything else let's inspect with %O
        args.unshift('%O');
      }
  
      // apply any `formatters` transformations
      var index = 0;
      args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
        // if we encounter an escaped % then don't increase the array index
        if (match === '%%') return match;
        index++;
        var formatter = exports.formatters[format];
        if ('function' === typeof formatter) {
          var val = args[index];
          match = formatter.call(self, val);
  
          // now we need to remove `args[index]` since it's inlined in the `format`
          args.splice(index, 1);
          index--;
        }
        return match;
      });
  
      // apply env-specific formatting (colors, etc.)
      exports.formatArgs.call(self, args);
  
      var logFn = debug.log || exports.log || console.log.bind(console);
      logFn.apply(self, args);
    }
  
    debug.namespace = namespace;
    debug.enabled = exports.enabled(namespace);
    debug.useColors = exports.useColors();
    debug.color = selectColor(namespace);
  
    // env-specific initialization logic for debug instances
    if ('function' === typeof exports.init) {
      exports.init(debug);
    }
  
    return debug;
  }
  
  /**
   * Enables a debug mode by namespaces. This can include modes
   * separated by a colon and wildcards.
   *
   * @param {String} namespaces
   * @api public
   */
  
  function enable(namespaces) {
    exports.save(namespaces);
  
    exports.names = [];
    exports.skips = [];
  
    var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
    var len = split.length;
  
    for (var i = 0; i < len; i++) {
      if (!split[i]) continue; // ignore empty strings
      namespaces = split[i].replace(/\*/g, '.*?');
      if (namespaces[0] === '-') {
        exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
      } else {
        exports.names.push(new RegExp('^' + namespaces + '$'));
      }
    }
  }
  
  /**
   * Disable debug output.
   *
   * @api public
   */
  
  function disable() {
    exports.enable('');
  }
  
  /**
   * Returns true if the given mode name is enabled, false otherwise.
   *
   * @param {String} name
   * @return {Boolean}
   * @api public
   */
  
  function enabled(name) {
    var i, len;
    for (i = 0, len = exports.skips.length; i < len; i++) {
      if (exports.skips[i].test(name)) {
        return false;
      }
    }
    for (i = 0, len = exports.names.length; i < len; i++) {
      if (exports.names[i].test(name)) {
        return true;
      }
    }
    return false;
  }
  
  /**
   * Coerce `val`.
   *
   * @param {Mixed} val
   * @return {Mixed}
   * @api private
   */
  
  function coerce(val) {
    if (val instanceof Error) return val.stack || val.message;
    return val;
  }
  
  },{"ms":66}],30:[function(_dereq_,module,exports){
  
  module.exports = _dereq_('./lib/index');
  
  },{"./lib/index":31}],31:[function(_dereq_,module,exports){
  
  module.exports = _dereq_('./socket');
  
  /**
   * Exports parser
   *
   * @api public
   *
   */
  module.exports.parser = _dereq_('engine.io-parser');
  
  },{"./socket":32,"engine.io-parser":43}],32:[function(_dereq_,module,exports){
  (function (global){
  /**
   * Module dependencies.
   */
  
  var transports = _dereq_('./transports/index');
  var Emitter = _dereq_('component-emitter');
  var debug = _dereq_('debug')('engine.io-client:socket');
  var index = _dereq_('indexof');
  var parser = _dereq_('engine.io-parser');
  var parseuri = _dereq_('parseuri');
  var parsejson = _dereq_('parsejson');
  var parseqs = _dereq_('parseqs');
  
  /**
   * Module exports.
   */
  
  module.exports = Socket;
  
  /**
   * Socket constructor.
   *
   * @param {String|Object} uri or options
   * @param {Object} options
   * @api public
   */
  
  function Socket (uri, opts) {
    if (!(this instanceof Socket)) return new Socket(uri, opts);
  
    opts = opts || {};
  
    if (uri && 'object' === typeof uri) {
      opts = uri;
      uri = null;
    }
  
    if (uri) {
      uri = parseuri(uri);
      opts.hostname = uri.host;
      opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';
      opts.port = uri.port;
      if (uri.query) opts.query = uri.query;
    } else if (opts.host) {
      opts.hostname = parseuri(opts.host).host;
    }
  
    this.secure = null != opts.secure ? opts.secure
      : (global.location && 'https:' === location.protocol);
  
    if (opts.hostname && !opts.port) {
      // if no port is specified manually, use the protocol default
      opts.port = this.secure ? '443' : '80';
    }
  
    this.agent = opts.agent || false;
    this.hostname = opts.hostname ||
      (global.location ? location.hostname : 'localhost');
    this.port = opts.port || (global.location && location.port
        ? location.port
        : (this.secure ? 443 : 80));
    this.query = opts.query || {};
    if ('string' === typeof this.query) this.query = parseqs.decode(this.query);
    this.upgrade = false !== opts.upgrade;
    this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
    this.forceJSONP = !!opts.forceJSONP;
    this.jsonp = false !== opts.jsonp;
    this.forceBase64 = !!opts.forceBase64;
    this.enablesXDR = !!opts.enablesXDR;
    this.timestampParam = opts.timestampParam || 't';
    this.timestampRequests = opts.timestampRequests;
    this.transports = opts.transports || ['polling', 'websocket'];
    this.readyState = '';
    this.writeBuffer = [];
    this.prevBufferLen = 0;
    this.policyPort = opts.policyPort || 843;
    this.rememberUpgrade = opts.rememberUpgrade || false;
    this.binaryType = null;
    this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
    this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;
  
    if (true === this.perMessageDeflate) this.perMessageDeflate = {};
    if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {
      this.perMessageDeflate.threshold = 1024;
    }
  
    // SSL options for Node.js client
    this.pfx = opts.pfx || null;
    this.key = opts.key || null;
    this.passphrase = opts.passphrase || null;
    this.cert = opts.cert || null;
    this.ca = opts.ca || null;
    this.ciphers = opts.ciphers || null;
    this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? null : opts.rejectUnauthorized;
    this.forceNode = !!opts.forceNode;
  
    // other options for Node.js client
    var freeGlobal = typeof global === 'object' && global;
    if (freeGlobal.global === freeGlobal) {
      if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {
        this.extraHeaders = opts.extraHeaders;
      }
  
      if (opts.localAddress) {
        this.localAddress = opts.localAddress;
      }
    }
  
    // set on handshake
    this.id = null;
    this.upgrades = null;
    this.pingInterval = null;
    this.pingTimeout = null;
  
    // set on heartbeat
    this.pingIntervalTimer = null;
    this.pingTimeoutTimer = null;
  
    this.open();
  }
  
  Socket.priorWebsocketSuccess = false;
  
  /**
   * Mix in `Emitter`.
   */
  
  Emitter(Socket.prototype);
  
  /**
   * Protocol version.
   *
   * @api public
   */
  
  Socket.protocol = parser.protocol; // this is an int
  
  /**
   * Expose deps for legacy compatibility
   * and standalone browser access.
   */
  
  Socket.Socket = Socket;
  Socket.Transport = _dereq_('./transport');
  Socket.transports = _dereq_('./transports/index');
  Socket.parser = _dereq_('engine.io-parser');
  
  /**
   * Creates transport of the given type.
   *
   * @param {String} transport name
   * @return {Transport}
   * @api private
   */
  
  Socket.prototype.createTransport = function (name) {
    debug('creating transport "%s"', name);
    var query = clone(this.query);
  
    // append engine.io protocol identifier
    query.EIO = parser.protocol;
  
    // transport name
    query.transport = name;
  
    // session id if we already have one
    if (this.id) query.sid = this.id;
  
    var transport = new transports[name]({
      agent: this.agent,
      hostname: this.hostname,
      port: this.port,
      secure: this.secure,
      path: this.path,
      query: query,
      forceJSONP: this.forceJSONP,
      jsonp: this.jsonp,
      forceBase64: this.forceBase64,
      enablesXDR: this.enablesXDR,
      timestampRequests: this.timestampRequests,
      timestampParam: this.timestampParam,
      policyPort: this.policyPort,
      socket: this,
      pfx: this.pfx,
      key: this.key,
      passphrase: this.passphrase,
      cert: this.cert,
      ca: this.ca,
      ciphers: this.ciphers,
      rejectUnauthorized: this.rejectUnauthorized,
      perMessageDeflate: this.perMessageDeflate,
      extraHeaders: this.extraHeaders,
      forceNode: this.forceNode,
      localAddress: this.localAddress
    });
  
    return transport;
  };
  
  function clone (obj) {
    var o = {};
    for (var i in obj) {
      if (obj.hasOwnProperty(i)) {
        o[i] = obj[i];
      }
    }
    return o;
  }
  
  /**
   * Initializes transport to use and starts probe.
   *
   * @api private
   */
  Socket.prototype.open = function () {
    var transport;
    if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {
      transport = 'websocket';
    } else if (0 === this.transports.length) {
      // Emit error on next tick so it can be listened to
      var self = this;
      setTimeout(function () {
        self.emit('error', 'No transports available');
      }, 0);
      return;
    } else {
      transport = this.transports[0];
    }
    this.readyState = 'opening';
  
    // Retry with the next transport if the transport is disabled (jsonp: false)
    try {
      transport = this.createTransport(transport);
    } catch (e) {
      this.transports.shift();
      this.open();
      return;
    }
  
    transport.open();
    this.setTransport(transport);
  };
  
  /**
   * Sets the current transport. Disables the existing one (if any).
   *
   * @api private
   */
  
  Socket.prototype.setTransport = function (transport) {
    debug('setting transport %s', transport.name);
    var self = this;
  
    if (this.transport) {
      debug('clearing existing transport %s', this.transport.name);
      this.transport.removeAllListeners();
    }
  
    // set up transport
    this.transport = transport;
  
    // set up transport listeners
    transport
    .on('drain', function () {
      self.onDrain();
    })
    .on('packet', function (packet) {
      self.onPacket(packet);
    })
    .on('error', function (e) {
      self.onError(e);
    })
    .on('close', function () {
      self.onClose('transport close');
    });
  };
  
  /**
   * Probes a transport.
   *
   * @param {String} transport name
   * @api private
   */
  
  Socket.prototype.probe = function (name) {
    debug('probing transport "%s"', name);
    var transport = this.createTransport(name, { probe: 1 });
    var failed = false;
    var self = this;
  
    Socket.priorWebsocketSuccess = false;
  
    function onTransportOpen () {
      if (self.onlyBinaryUpgrades) {
        var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
        failed = failed || upgradeLosesBinary;
      }
      if (failed) return;
  
      debug('probe transport "%s" opened', name);
      transport.send([{ type: 'ping', data: 'probe' }]);
      transport.once('packet', function (msg) {
        if (failed) return;
        if ('pong' === msg.type && 'probe' === msg.data) {
          debug('probe transport "%s" pong', name);
          self.upgrading = true;
          self.emit('upgrading', transport);
          if (!transport) return;
          Socket.priorWebsocketSuccess = 'websocket' === transport.name;
  
          debug('pausing current transport "%s"', self.transport.name);
          self.transport.pause(function () {
            if (failed) return;
            if ('closed' === self.readyState) return;
            debug('changing transport and sending upgrade packet');
  
            cleanup();
  
            self.setTransport(transport);
            transport.send([{ type: 'upgrade' }]);
            self.emit('upgrade', transport);
            transport = null;
            self.upgrading = false;
            self.flush();
          });
        } else {
          debug('probe transport "%s" failed', name);
          var err = new Error('probe error');
          err.transport = transport.name;
          self.emit('upgradeError', err);
        }
      });
    }
  
    function freezeTransport () {
      if (failed) return;
  
      // Any callback called by transport should be ignored since now
      failed = true;
  
      cleanup();
  
      transport.close();
      transport = null;
    }
  
    // Handle any error that happens while probing
    function onerror (err) {
      var error = new Error('probe error: ' + err);
      error.transport = transport.name;
  
      freezeTransport();
  
      debug('probe transport "%s" failed because of error: %s', name, err);
  
      self.emit('upgradeError', error);
    }
  
    function onTransportClose () {
      onerror('transport closed');
    }
  
    // When the socket is closed while we're probing
    function onclose () {
      onerror('socket closed');
    }
  
    // When the socket is upgraded while we're probing
    function onupgrade (to) {
      if (transport && to.name !== transport.name) {
        debug('"%s" works - aborting "%s"', to.name, transport.name);
        freezeTransport();
      }
    }
  
    // Remove all listeners on the transport and on self
    function cleanup () {
      transport.removeListener('open', onTransportOpen);
      transport.removeListener('error', onerror);
      transport.removeListener('close', onTransportClose);
      self.removeListener('close', onclose);
      self.removeListener('upgrading', onupgrade);
    }
  
    transport.once('open', onTransportOpen);
    transport.once('error', onerror);
    transport.once('close', onTransportClose);
  
    this.once('close', onclose);
    this.once('upgrading', onupgrade);
  
    transport.open();
  };
  
  /**
   * Called when connection is deemed open.
   *
   * @api public
   */
  
  Socket.prototype.onOpen = function () {
    debug('socket open');
    this.readyState = 'open';
    Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;
    this.emit('open');
    this.flush();
  
    // we check for `readyState` in case an `open`
    // listener already closed the socket
    if ('open' === this.readyState && this.upgrade && this.transport.pause) {
      debug('starting upgrade probes');
      for (var i = 0, l = this.upgrades.length; i < l; i++) {
        this.probe(this.upgrades[i]);
      }
    }
  };
  
  /**
   * Handles a packet.
   *
   * @api private
   */
  
  Socket.prototype.onPacket = function (packet) {
    if ('opening' === this.readyState || 'open' === this.readyState ||
        'closing' === this.readyState) {
      debug('socket receive: type "%s", data "%s"', packet.type, packet.data);
  
      this.emit('packet', packet);
  
      // Socket is live - any packet counts
      this.emit('heartbeat');
  
      switch (packet.type) {
        case 'open':
          this.onHandshake(parsejson(packet.data));
          break;
  
        case 'pong':
          this.setPing();
          this.emit('pong');
          break;
  
        case 'error':
          var err = new Error('server error');
          err.code = packet.data;
          this.onError(err);
          break;
  
        case 'message':
          this.emit('data', packet.data);
          this.emit('message', packet.data);
          break;
      }
    } else {
      debug('packet received with socket readyState "%s"', this.readyState);
    }
  };
  
  /**
   * Called upon handshake completion.
   *
   * @param {Object} handshake obj
   * @api private
   */
  
  Socket.prototype.onHandshake = function (data) {
    this.emit('handshake', data);
    this.id = data.sid;
    this.transport.query.sid = data.sid;
    this.upgrades = this.filterUpgrades(data.upgrades);
    this.pingInterval = data.pingInterval;
    this.pingTimeout = data.pingTimeout;
    this.onOpen();
    // In case open handler closes socket
    if ('closed' === this.readyState) return;
    this.setPing();
  
    // Prolong liveness of socket on heartbeat
    this.removeListener('heartbeat', this.onHeartbeat);
    this.on('heartbeat', this.onHeartbeat);
  };
  
  /**
   * Resets ping timeout.
   *
   * @api private
   */
  
  Socket.prototype.onHeartbeat = function (timeout) {
    clearTimeout(this.pingTimeoutTimer);
    var self = this;
    self.pingTimeoutTimer = setTimeout(function () {
      if ('closed' === self.readyState) return;
      self.onClose('ping timeout');
    }, timeout || (self.pingInterval + self.pingTimeout));
  };
  
  /**
   * Pings server every `this.pingInterval` and expects response
   * within `this.pingTimeout` or closes connection.
   *
   * @api private
   */
  
  Socket.prototype.setPing = function () {
    var self = this;
    clearTimeout(self.pingIntervalTimer);
    self.pingIntervalTimer = setTimeout(function () {
      debug('writing ping packet - expecting pong within %sms', self.pingTimeout);
      self.ping();
      self.onHeartbeat(self.pingTimeout);
    }, self.pingInterval);
  };
  
  /**
  * Sends a ping packet.
  *
  * @api private
  */
  
  Socket.prototype.ping = function () {
    var self = this;
    this.sendPacket('ping', function () {
      self.emit('ping');
    });
  };
  
  /**
   * Called on `drain` event
   *
   * @api private
   */
  
  Socket.prototype.onDrain = function () {
    this.writeBuffer.splice(0, this.prevBufferLen);
  
    // setting prevBufferLen = 0 is very important
    // for example, when upgrading, upgrade packet is sent over,
    // and a nonzero prevBufferLen could cause problems on `drain`
    this.prevBufferLen = 0;
  
    if (0 === this.writeBuffer.length) {
      this.emit('drain');
    } else {
      this.flush();
    }
  };
  
  /**
   * Flush write buffers.
   *
   * @api private
   */
  
  Socket.prototype.flush = function () {
    if ('closed' !== this.readyState && this.transport.writable &&
      !this.upgrading && this.writeBuffer.length) {
      debug('flushing %d packets in socket', this.writeBuffer.length);
      this.transport.send(this.writeBuffer);
      // keep track of current length of writeBuffer
      // splice writeBuffer and callbackBuffer on `drain`
      this.prevBufferLen = this.writeBuffer.length;
      this.emit('flush');
    }
  };
  
  /**
   * Sends a message.
   *
   * @param {String} message.
   * @param {Function} callback function.
   * @param {Object} options.
   * @return {Socket} for chaining.
   * @api public
   */
  
  Socket.prototype.write =
  Socket.prototype.send = function (msg, options, fn) {
    this.sendPacket('message', msg, options, fn);
    return this;
  };
  
  /**
   * Sends a packet.
   *
   * @param {String} packet type.
   * @param {String} data.
   * @param {Object} options.
   * @param {Function} callback function.
   * @api private
   */
  
  Socket.prototype.sendPacket = function (type, data, options, fn) {
    if ('function' === typeof data) {
      fn = data;
      data = undefined;
    }
  
    if ('function' === typeof options) {
      fn = options;
      options = null;
    }
  
    if ('closing' === this.readyState || 'closed' === this.readyState) {
      return;
    }
  
    options = options || {};
    options.compress = false !== options.compress;
  
    var packet = {
      type: type,
      data: data,
      options: options
    };
    this.emit('packetCreate', packet);
    this.writeBuffer.push(packet);
    if (fn) this.once('flush', fn);
    this.flush();
  };
  
  /**
   * Closes the connection.
   *
   * @api private
   */
  
  Socket.prototype.close = function () {
    if ('opening' === this.readyState || 'open' === this.readyState) {
      this.readyState = 'closing';
  
      var self = this;
  
      if (this.writeBuffer.length) {
        this.once('drain', function () {
          if (this.upgrading) {
            waitForUpgrade();
          } else {
            close();
          }
        });
      } else if (this.upgrading) {
        waitForUpgrade();
      } else {
        close();
      }
    }
  
    function close () {
      self.onClose('forced close');
      debug('socket closing - telling transport to close');
      self.transport.close();
    }
  
    function cleanupAndClose () {
      self.removeListener('upgrade', cleanupAndClose);
      self.removeListener('upgradeError', cleanupAndClose);
      close();
    }
  
    function waitForUpgrade () {
      // wait for upgrade to finish since we can't send packets while pausing a transport
      self.once('upgrade', cleanupAndClose);
      self.once('upgradeError', cleanupAndClose);
    }
  
    return this;
  };
  
  /**
   * Called upon transport error
   *
   * @api private
   */
  
  Socket.prototype.onError = function (err) {
    debug('socket error %j', err);
    Socket.priorWebsocketSuccess = false;
    this.emit('error', err);
    this.onClose('transport error', err);
  };
  
  /**
   * Called upon transport close.
   *
   * @api private
   */
  
  Socket.prototype.onClose = function (reason, desc) {
    if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {
      debug('socket close with reason: "%s"', reason);
      var self = this;
  
      // clear timers
      clearTimeout(this.pingIntervalTimer);
      clearTimeout(this.pingTimeoutTimer);
  
      // stop event from firing again for transport
      this.transport.removeAllListeners('close');
  
      // ensure transport won't stay open
      this.transport.close();
  
      // ignore further transport communication
      this.transport.removeAllListeners();
  
      // set ready state
      this.readyState = 'closed';
  
      // clear session id
      this.id = null;
  
      // emit close event
      this.emit('close', reason, desc);
  
      // clean buffers after, so users can still
      // grab the buffers on `close` event
      self.writeBuffer = [];
      self.prevBufferLen = 0;
    }
  };
  
  /**
   * Filters upgrades, returning only those matching client transports.
   *
   * @param {Array} server upgrades
   * @api private
   *
   */
  
  Socket.prototype.filterUpgrades = function (upgrades) {
    var filteredUpgrades = [];
    for (var i = 0, j = upgrades.length; i < j; i++) {
      if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
    }
    return filteredUpgrades;
  };
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{"./transport":33,"./transports/index":34,"component-emitter":26,"debug":40,"engine.io-parser":43,"indexof":50,"parsejson":68,"parseqs":69,"parseuri":70}],33:[function(_dereq_,module,exports){
  /**
   * Module dependencies.
   */
  
  var parser = _dereq_('engine.io-parser');
  var Emitter = _dereq_('component-emitter');
  
  /**
   * Module exports.
   */
  
  module.exports = Transport;
  
  /**
   * Transport abstract constructor.
   *
   * @param {Object} options.
   * @api private
   */
  
  function Transport (opts) {
    this.path = opts.path;
    this.hostname = opts.hostname;
    this.port = opts.port;
    this.secure = opts.secure;
    this.query = opts.query;
    this.timestampParam = opts.timestampParam;
    this.timestampRequests = opts.timestampRequests;
    this.readyState = '';
    this.agent = opts.agent || false;
    this.socket = opts.socket;
    this.enablesXDR = opts.enablesXDR;
  
    // SSL options for Node.js client
    this.pfx = opts.pfx;
    this.key = opts.key;
    this.passphrase = opts.passphrase;
    this.cert = opts.cert;
    this.ca = opts.ca;
    this.ciphers = opts.ciphers;
    this.rejectUnauthorized = opts.rejectUnauthorized;
    this.forceNode = opts.forceNode;
  
    // other options for Node.js client
    this.extraHeaders = opts.extraHeaders;
    this.localAddress = opts.localAddress;
  }
  
  /**
   * Mix in `Emitter`.
   */
  
  Emitter(Transport.prototype);
  
  /**
   * Emits an error.
   *
   * @param {String} str
   * @return {Transport} for chaining
   * @api public
   */
  
  Transport.prototype.onError = function (msg, desc) {
    var err = new Error(msg);
    err.type = 'TransportError';
    err.description = desc;
    this.emit('error', err);
    return this;
  };
  
  /**
   * Opens the transport.
   *
   * @api public
   */
  
  Transport.prototype.open = function () {
    if ('closed' === this.readyState || '' === this.readyState) {
      this.readyState = 'opening';
      this.doOpen();
    }
  
    return this;
  };
  
  /**
   * Closes the transport.
   *
   * @api private
   */
  
  Transport.prototype.close = function () {
    if ('opening' === this.readyState || 'open' === this.readyState) {
      this.doClose();
      this.onClose();
    }
  
    return this;
  };
  
  /**
   * Sends multiple packets.
   *
   * @param {Array} packets
   * @api private
   */
  
  Transport.prototype.send = function (packets) {
    if ('open' === this.readyState) {
      this.write(packets);
    } else {
      throw new Error('Transport not open');
    }
  };
  
  /**
   * Called upon open
   *
   * @api private
   */
  
  Transport.prototype.onOpen = function () {
    this.readyState = 'open';
    this.writable = true;
    this.emit('open');
  };
  
  /**
   * Called with data.
   *
   * @param {String} data
   * @api private
   */
  
  Transport.prototype.onData = function (data) {
    var packet = parser.decodePacket(data, this.socket.binaryType);
    this.onPacket(packet);
  };
  
  /**
   * Called with a decoded packet.
   */
  
  Transport.prototype.onPacket = function (packet) {
    this.emit('packet', packet);
  };
  
  /**
   * Called upon close.
   *
   * @api private
   */
  
  Transport.prototype.onClose = function () {
    this.readyState = 'closed';
    this.emit('close');
  };
  
  },{"component-emitter":26,"engine.io-parser":43}],34:[function(_dereq_,module,exports){
  (function (global){
  /**
   * Module dependencies
   */
  
  var XMLHttpRequest = _dereq_('xmlhttprequest-ssl');
  var XHR = _dereq_('./polling-xhr');
  var JSONP = _dereq_('./polling-jsonp');
  var websocket = _dereq_('./websocket');
  
  /**
   * Export transports.
   */
  
  exports.polling = polling;
  exports.websocket = websocket;
  
  /**
   * Polling transport polymorphic constructor.
   * Decides on xhr vs jsonp based on feature detection.
   *
   * @api private
   */
  
  function polling (opts) {
    var xhr;
    var xd = false;
    var xs = false;
    var jsonp = false !== opts.jsonp;
  
    if (global.location) {
      var isSSL = 'https:' === location.protocol;
      var port = location.port;
  
      // some user agents have empty `location.port`
      if (!port) {
        port = isSSL ? 443 : 80;
      }
  
      xd = opts.hostname !== location.hostname || port !== opts.port;
      xs = opts.secure !== isSSL;
    }
  
    opts.xdomain = xd;
    opts.xscheme = xs;
    xhr = new XMLHttpRequest(opts);
  
    if ('open' in xhr && !opts.forceJSONP) {
      return new XHR(opts);
    } else {
      if (!jsonp) throw new Error('JSONP disabled');
      return new JSONP(opts);
    }
  }
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{"./polling-jsonp":35,"./polling-xhr":36,"./websocket":38,"xmlhttprequest-ssl":39}],35:[function(_dereq_,module,exports){
  (function (global){
  
  /**
   * Module requirements.
   */
  
  var Polling = _dereq_('./polling');
  var inherit = _dereq_('component-inherit');
  
  /**
   * Module exports.
   */
  
  module.exports = JSONPPolling;
  
  /**
   * Cached regular expressions.
   */
  
  var rNewline = /\n/g;
  var rEscapedNewline = /\\n/g;
  
  /**
   * Global JSONP callbacks.
   */
  
  var callbacks;
  
  /**
   * Noop.
   */
  
  function empty () { }
  
  /**
   * JSONP Polling constructor.
   *
   * @param {Object} opts.
   * @api public
   */
  
  function JSONPPolling (opts) {
    Polling.call(this, opts);
  
    this.query = this.query || {};
  
    // define global callbacks array if not present
    // we do this here (lazily) to avoid unneeded global pollution
    if (!callbacks) {
      // we need to consider multiple engines in the same page
      if (!global.___eio) global.___eio = [];
      callbacks = global.___eio;
    }
  
    // callback identifier
    this.index = callbacks.length;
  
    // add callback to jsonp global
    var self = this;
    callbacks.push(function (msg) {
      self.onData(msg);
    });
  
    // append to query string
    this.query.j = this.index;
  
    // prevent spurious errors from being emitted when the window is unloaded
    if (global.document && global.addEventListener) {
      global.addEventListener('beforeunload', function () {
        if (self.script) self.script.onerror = empty;
      }, false);
    }
  }
  
  /**
   * Inherits from Polling.
   */
  
  inherit(JSONPPolling, Polling);
  
  /*
   * JSONP only supports binary as base64 encoded strings
   */
  
  JSONPPolling.prototype.supportsBinary = false;
  
  /**
   * Closes the socket.
   *
   * @api private
   */
  
  JSONPPolling.prototype.doClose = function () {
    if (this.script) {
      this.script.parentNode.removeChild(this.script);
      this.script = null;
    }
  
    if (this.form) {
      this.form.parentNode.removeChild(this.form);
      this.form = null;
      this.iframe = null;
    }
  
    Polling.prototype.doClose.call(this);
  };
  
  /**
   * Starts a poll cycle.
   *
   * @api private
   */
  
  JSONPPolling.prototype.doPoll = function () {
    var self = this;
    var script = document.createElement('script');
  
    if (this.script) {
      this.script.parentNode.removeChild(this.script);
      this.script = null;
    }
  
    script.async = true;
    script.src = this.uri();
    script.onerror = function (e) {
      self.onError('jsonp poll error', e);
    };
  
    var insertAt = document.getElementsByTagName('script')[0];
    if (insertAt) {
      insertAt.parentNode.insertBefore(script, insertAt);
    } else {
      (document.head || document.body).appendChild(script);
    }
    this.script = script;
  
    var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);
  
    if (isUAgecko) {
      setTimeout(function () {
        var iframe = document.createElement('iframe');
        document.body.appendChild(iframe);
        document.body.removeChild(iframe);
      }, 100);
    }
  };
  
  /**
   * Writes with a hidden iframe.
   *
   * @param {String} data to send
   * @param {Function} called upon flush.
   * @api private
   */
  
  JSONPPolling.prototype.doWrite = function (data, fn) {
    var self = this;
  
    if (!this.form) {
      var form = document.createElement('form');
      var area = document.createElement('textarea');
      var id = this.iframeId = 'eio_iframe_' + this.index;
      var iframe;
  
      form.className = 'socketio';
      form.style.position = 'absolute';
      form.style.top = '-1000px';
      form.style.left = '-1000px';
      form.target = id;
      form.method = 'POST';
      form.setAttribute('accept-charset', 'utf-8');
      area.name = 'd';
      form.appendChild(area);
      document.body.appendChild(form);
  
      this.form = form;
      this.area = area;
    }
  
    this.form.action = this.uri();
  
    function complete () {
      initIframe();
      fn();
    }
  
    function initIframe () {
      if (self.iframe) {
        try {
          self.form.removeChild(self.iframe);
        } catch (e) {
          self.onError('jsonp polling iframe removal error', e);
        }
      }
  
      try {
        // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
        var html = '<iframe src="javascript:0" name="' + self.iframeId + '">';
        iframe = document.createElement(html);
      } catch (e) {
        iframe = document.createElement('iframe');
        iframe.name = self.iframeId;
        iframe.src = 'javascript:0';
      }
  
      iframe.id = self.iframeId;
  
      self.form.appendChild(iframe);
      self.iframe = iframe;
    }
  
    initIframe();
  
    // escape \n to prevent it from being converted into \r\n by some UAs
    // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
    data = data.replace(rEscapedNewline, '\\\n');
    this.area.value = data.replace(rNewline, '\\n');
  
    try {
      this.form.submit();
    } catch (e) {}
  
    if (this.iframe.attachEvent) {
      this.iframe.onreadystatechange = function () {
        if (self.iframe.readyState === 'complete') {
          complete();
        }
      };
    } else {
      this.iframe.onload = complete;
    }
  };
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{"./polling":37,"component-inherit":27}],36:[function(_dereq_,module,exports){
  (function (global){
  /**
   * Module requirements.
   */
  
  var XMLHttpRequest = _dereq_('xmlhttprequest-ssl');
  var Polling = _dereq_('./polling');
  var Emitter = _dereq_('component-emitter');
  var inherit = _dereq_('component-inherit');
  var debug = _dereq_('debug')('engine.io-client:polling-xhr');
  
  /**
   * Module exports.
   */
  
  module.exports = XHR;
  module.exports.Request = Request;
  
  /**
   * Empty function
   */
  
  function empty () {}
  
  /**
   * XHR Polling constructor.
   *
   * @param {Object} opts
   * @api public
   */
  
  function XHR (opts) {
    Polling.call(this, opts);
    this.requestTimeout = opts.requestTimeout;
  
    if (global.location) {
      var isSSL = 'https:' === location.protocol;
      var port = location.port;
  
      // some user agents have empty `location.port`
      if (!port) {
        port = isSSL ? 443 : 80;
      }
  
      this.xd = opts.hostname !== global.location.hostname ||
        port !== opts.port;
      this.xs = opts.secure !== isSSL;
    } else {
      this.extraHeaders = opts.extraHeaders;
    }
  }
  
  /**
   * Inherits from Polling.
   */
  
  inherit(XHR, Polling);
  
  /**
   * XHR supports binary
   */
  
  XHR.prototype.supportsBinary = true;
  
  /**
   * Creates a request.
   *
   * @param {String} method
   * @api private
   */
  
  XHR.prototype.request = function (opts) {
    opts = opts || {};
    opts.uri = this.uri();
    opts.xd = this.xd;
    opts.xs = this.xs;
    opts.agent = this.agent || false;
    opts.supportsBinary = this.supportsBinary;
    opts.enablesXDR = this.enablesXDR;
  
    // SSL options for Node.js client
    opts.pfx = this.pfx;
    opts.key = this.key;
    opts.passphrase = this.passphrase;
    opts.cert = this.cert;
    opts.ca = this.ca;
    opts.ciphers = this.ciphers;
    opts.rejectUnauthorized = this.rejectUnauthorized;
    opts.requestTimeout = this.requestTimeout;
  
    // other options for Node.js client
    opts.extraHeaders = this.extraHeaders;
  
    return new Request(opts);
  };
  
  /**
   * Sends data.
   *
   * @param {String} data to send.
   * @param {Function} called upon flush.
   * @api private
   */
  
  XHR.prototype.doWrite = function (data, fn) {
    var isBinary = typeof data !== 'string' && data !== undefined;
    var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
    var self = this;
    req.on('success', fn);
    req.on('error', function (err) {
      self.onError('xhr post error', err);
    });
    this.sendXhr = req;
  };
  
  /**
   * Starts a poll cycle.
   *
   * @api private
   */
  
  XHR.prototype.doPoll = function () {
    debug('xhr poll');
    var req = this.request();
    var self = this;
    req.on('data', function (data) {
      self.onData(data);
    });
    req.on('error', function (err) {
      self.onError('xhr poll error', err);
    });
    this.pollXhr = req;
  };
  
  /**
   * Request constructor
   *
   * @param {Object} options
   * @api public
   */
  
  function Request (opts) {
    this.method = opts.method || 'GET';
    this.uri = opts.uri;
    this.xd = !!opts.xd;
    this.xs = !!opts.xs;
    this.async = false !== opts.async;
    this.data = undefined !== opts.data ? opts.data : null;
    this.agent = opts.agent;
    this.isBinary = opts.isBinary;
    this.supportsBinary = opts.supportsBinary;
    this.enablesXDR = opts.enablesXDR;
    this.requestTimeout = opts.requestTimeout;
  
    // SSL options for Node.js client
    this.pfx = opts.pfx;
    this.key = opts.key;
    this.passphrase = opts.passphrase;
    this.cert = opts.cert;
    this.ca = opts.ca;
    this.ciphers = opts.ciphers;
    this.rejectUnauthorized = opts.rejectUnauthorized;
  
    // other options for Node.js client
    this.extraHeaders = opts.extraHeaders;
  
    this.create();
  }
  
  /**
   * Mix in `Emitter`.
   */
  
  Emitter(Request.prototype);
  
  /**
   * Creates the XHR object and sends the request.
   *
   * @api private
   */
  
  Request.prototype.create = function () {
    var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };
  
    // SSL options for Node.js client
    opts.pfx = this.pfx;
    opts.key = this.key;
    opts.passphrase = this.passphrase;
    opts.cert = this.cert;
    opts.ca = this.ca;
    opts.ciphers = this.ciphers;
    opts.rejectUnauthorized = this.rejectUnauthorized;
  
    var xhr = this.xhr = new XMLHttpRequest(opts);
    var self = this;
  
    try {
      debug('xhr open %s: %s', this.method, this.uri);
      xhr.open(this.method, this.uri, this.async);
      try {
        if (this.extraHeaders) {
          xhr.setDisableHeaderCheck(true);
          for (var i in this.extraHeaders) {
            if (this.extraHeaders.hasOwnProperty(i)) {
              xhr.setRequestHeader(i, this.extraHeaders[i]);
            }
          }
        }
      } catch (e) {}
      if (this.supportsBinary) {
        // This has to be done after open because Firefox is stupid
        // http://stackoverflow.com/questions/13216903/get-binary-data-with-xmlhttprequest-in-a-firefox-extension
        xhr.responseType = 'arraybuffer';
      }
  
      if ('POST' === this.method) {
        try {
          if (this.isBinary) {
            xhr.setRequestHeader('Content-type', 'application/octet-stream');
          } else {
            xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
          }
        } catch (e) {}
      }
  
      try {
        xhr.setRequestHeader('Accept', '*/*');
      } catch (e) {}
  
      // ie6 check
      if ('withCredentials' in xhr) {
        xhr.withCredentials = true;
      }
  
      if (this.requestTimeout) {
        xhr.timeout = this.requestTimeout;
      }
  
      if (this.hasXDR()) {
        xhr.onload = function () {
          self.onLoad();
        };
        xhr.onerror = function () {
          self.onError(xhr.responseText);
        };
      } else {
        xhr.onreadystatechange = function () {
          if (4 !== xhr.readyState) return;
          if (200 === xhr.status || 1223 === xhr.status) {
            self.onLoad();
          } else {
            // make sure the `error` event handler that's user-set
            // does not throw in the same tick and gets caught here
            setTimeout(function () {
              self.onError(xhr.status);
            }, 0);
          }
        };
      }
  
      debug('xhr data %s', this.data);
      xhr.send(this.data);
    } catch (e) {
      // Need to defer since .create() is called directly fhrom the constructor
      // and thus the 'error' event can only be only bound *after* this exception
      // occurs.  Therefore, also, we cannot throw here at all.
      setTimeout(function () {
        self.onError(e);
      }, 0);
      return;
    }
  
    if (global.document) {
      this.index = Request.requestsCount++;
      Request.requests[this.index] = this;
    }
  };
  
  /**
   * Called upon successful response.
   *
   * @api private
   */
  
  Request.prototype.onSuccess = function () {
    this.emit('success');
    this.cleanup();
  };
  
  /**
   * Called if we have data.
   *
   * @api private
   */
  
  Request.prototype.onData = function (data) {
    this.emit('data', data);
    this.onSuccess();
  };
  
  /**
   * Called upon error.
   *
   * @api private
   */
  
  Request.prototype.onError = function (err) {
    this.emit('error', err);
    this.cleanup(true);
  };
  
  /**
   * Cleans up house.
   *
   * @api private
   */
  
  Request.prototype.cleanup = function (fromError) {
    if ('undefined' === typeof this.xhr || null === this.xhr) {
      return;
    }
    // xmlhttprequest
    if (this.hasXDR()) {
      this.xhr.onload = this.xhr.onerror = empty;
    } else {
      this.xhr.onreadystatechange = empty;
    }
  
    if (fromError) {
      try {
        this.xhr.abort();
      } catch (e) {}
    }
  
    if (global.document) {
      delete Request.requests[this.index];
    }
  
    this.xhr = null;
  };
  
  /**
   * Called upon load.
   *
   * @api private
   */
  
  Request.prototype.onLoad = function () {
    var data;
    try {
      var contentType;
      try {
        contentType = this.xhr.getResponseHeader('Content-Type').split(';')[0];
      } catch (e) {}
      if (contentType === 'application/octet-stream') {
        data = this.xhr.response || this.xhr.responseText;
      } else {
        if (!this.supportsBinary) {
          data = this.xhr.responseText;
        } else {
          try {
            data = String.fromCharCode.apply(null, new Uint8Array(this.xhr.response));
          } catch (e) {
            var ui8Arr = new Uint8Array(this.xhr.response);
            var dataArray = [];
            for (var idx = 0, length = ui8Arr.length; idx < length; idx++) {
              dataArray.push(ui8Arr[idx]);
            }
  
            data = String.fromCharCode.apply(null, dataArray);
          }
        }
      }
    } catch (e) {
      this.onError(e);
    }
    if (null != data) {
      this.onData(data);
    }
  };
  
  /**
   * Check if it has XDomainRequest.
   *
   * @api private
   */
  
  Request.prototype.hasXDR = function () {
    return 'undefined' !== typeof global.XDomainRequest && !this.xs && this.enablesXDR;
  };
  
  /**
   * Aborts the request.
   *
   * @api public
   */
  
  Request.prototype.abort = function () {
    this.cleanup();
  };
  
  /**
   * Aborts pending requests when unloading the window. This is needed to prevent
   * memory leaks (e.g. when using IE) and to ensure that no spurious error is
   * emitted.
   */
  
  Request.requestsCount = 0;
  Request.requests = {};
  
  if (global.document) {
    if (global.attachEvent) {
      global.attachEvent('onunload', unloadHandler);
    } else if (global.addEventListener) {
      global.addEventListener('beforeunload', unloadHandler, false);
    }
  }
  
  function unloadHandler () {
    for (var i in Request.requests) {
      if (Request.requests.hasOwnProperty(i)) {
        Request.requests[i].abort();
      }
    }
  }
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{"./polling":37,"component-emitter":26,"component-inherit":27,"debug":40,"xmlhttprequest-ssl":39}],37:[function(_dereq_,module,exports){
  /**
   * Module dependencies.
   */
  
  var Transport = _dereq_('../transport');
  var parseqs = _dereq_('parseqs');
  var parser = _dereq_('engine.io-parser');
  var inherit = _dereq_('component-inherit');
  var yeast = _dereq_('yeast');
  var debug = _dereq_('debug')('engine.io-client:polling');
  
  /**
   * Module exports.
   */
  
  module.exports = Polling;
  
  /**
   * Is XHR2 supported?
   */
  
  var hasXHR2 = (function () {
    var XMLHttpRequest = _dereq_('xmlhttprequest-ssl');
    var xhr = new XMLHttpRequest({ xdomain: false });
    return null != xhr.responseType;
  })();
  
  /**
   * Polling interface.
   *
   * @param {Object} opts
   * @api private
   */
  
  function Polling (opts) {
    var forceBase64 = (opts && opts.forceBase64);
    if (!hasXHR2 || forceBase64) {
      this.supportsBinary = false;
    }
    Transport.call(this, opts);
  }
  
  /**
   * Inherits from Transport.
   */
  
  inherit(Polling, Transport);
  
  /**
   * Transport name.
   */
  
  Polling.prototype.name = 'polling';
  
  /**
   * Opens the socket (triggers polling). We write a PING message to determine
   * when the transport is open.
   *
   * @api private
   */
  
  Polling.prototype.doOpen = function () {
    this.poll();
  };
  
  /**
   * Pauses polling.
   *
   * @param {Function} callback upon buffers are flushed and transport is paused
   * @api private
   */
  
  Polling.prototype.pause = function (onPause) {
    var self = this;
  
    this.readyState = 'pausing';
  
    function pause () {
      debug('paused');
      self.readyState = 'paused';
      onPause();
    }
  
    if (this.polling || !this.writable) {
      var total = 0;
  
      if (this.polling) {
        debug('we are currently polling - waiting to pause');
        total++;
        this.once('pollComplete', function () {
          debug('pre-pause polling complete');
          --total || pause();
        });
      }
  
      if (!this.writable) {
        debug('we are currently writing - waiting to pause');
        total++;
        this.once('drain', function () {
          debug('pre-pause writing complete');
          --total || pause();
        });
      }
    } else {
      pause();
    }
  };
  
  /**
   * Starts polling cycle.
   *
   * @api public
   */
  
  Polling.prototype.poll = function () {
    debug('polling');
    this.polling = true;
    this.doPoll();
    this.emit('poll');
  };
  
  /**
   * Overloads onData to detect payloads.
   *
   * @api private
   */
  
  Polling.prototype.onData = function (data) {
    var self = this;
    debug('polling got data %s', data);
    var callback = function (packet, index, total) {
      // if its the first message we consider the transport open
      if ('opening' === self.readyState) {
        self.onOpen();
      }
  
      // if its a close packet, we close the ongoing requests
      if ('close' === packet.type) {
        self.onClose();
        return false;
      }
  
      // otherwise bypass onData and handle the message
      self.onPacket(packet);
    };
  
    // decode payload
    parser.decodePayload(data, this.socket.binaryType, callback);
  
    // if an event did not trigger closing
    if ('closed' !== this.readyState) {
      // if we got data we're not polling
      this.polling = false;
      this.emit('pollComplete');
  
      if ('open' === this.readyState) {
        this.poll();
      } else {
        debug('ignoring poll - transport state "%s"', this.readyState);
      }
    }
  };
  
  /**
   * For polling, send a close packet.
   *
   * @api private
   */
  
  Polling.prototype.doClose = function () {
    var self = this;
  
    function close () {
      debug('writing close packet');
      self.write([{ type: 'close' }]);
    }
  
    if ('open' === this.readyState) {
      debug('transport open - closing');
      close();
    } else {
      // in case we're trying to close while
      // handshaking is in progress (GH-164)
      debug('transport not open - deferring close');
      this.once('open', close);
    }
  };
  
  /**
   * Writes a packets payload.
   *
   * @param {Array} data packets
   * @param {Function} drain callback
   * @api private
   */
  
  Polling.prototype.write = function (packets) {
    var self = this;
    this.writable = false;
    var callbackfn = function () {
      self.writable = true;
      self.emit('drain');
    };
  
    parser.encodePayload(packets, this.supportsBinary, function (data) {
      self.doWrite(data, callbackfn);
    });
  };
  
  /**
   * Generates uri for connection.
   *
   * @api private
   */
  
  Polling.prototype.uri = function () {
    var query = this.query || {};
    var schema = this.secure ? 'https' : 'http';
    var port = '';
  
    // cache busting is forced
    if (false !== this.timestampRequests) {
      query[this.timestampParam] = yeast();
    }
  
    if (!this.supportsBinary && !query.sid) {
      query.b64 = 1;
    }
  
    query = parseqs.encode(query);
  
    // avoid port if default for schema
    if (this.port && (('https' === schema && Number(this.port) !== 443) ||
       ('http' === schema && Number(this.port) !== 80))) {
      port = ':' + this.port;
    }
  
    // prepend ? to query
    if (query.length) {
      query = '?' + query;
    }
  
    var ipv6 = this.hostname.indexOf(':') !== -1;
    return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
  };
  
  },{"../transport":33,"component-inherit":27,"debug":40,"engine.io-parser":43,"parseqs":69,"xmlhttprequest-ssl":39,"yeast":76}],38:[function(_dereq_,module,exports){
  (function (global){
  /**
   * Module dependencies.
   */
  
  var Transport = _dereq_('../transport');
  var parser = _dereq_('engine.io-parser');
  var parseqs = _dereq_('parseqs');
  var inherit = _dereq_('component-inherit');
  var yeast = _dereq_('yeast');
  var debug = _dereq_('debug')('engine.io-client:websocket');
  var BrowserWebSocket = global.WebSocket || global.MozWebSocket;
  var NodeWebSocket;
  if (typeof window === 'undefined') {
    try {
      NodeWebSocket = _dereq_('ws');
    } catch (e) { }
  }
  
  /**
   * Get either the `WebSocket` or `MozWebSocket` globals
   * in the browser or try to resolve WebSocket-compatible
   * interface exposed by `ws` for Node-like environment.
   */
  
  var WebSocket = BrowserWebSocket;
  if (!WebSocket && typeof window === 'undefined') {
    WebSocket = NodeWebSocket;
  }
  
  /**
   * Module exports.
   */
  
  module.exports = WS;
  
  /**
   * WebSocket transport constructor.
   *
   * @api {Object} connection options
   * @api public
   */
  
  function WS (opts) {
    var forceBase64 = (opts && opts.forceBase64);
    if (forceBase64) {
      this.supportsBinary = false;
    }
    this.perMessageDeflate = opts.perMessageDeflate;
    this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;
    if (!this.usingBrowserWebSocket) {
      WebSocket = NodeWebSocket;
    }
    Transport.call(this, opts);
  }
  
  /**
   * Inherits from Transport.
   */
  
  inherit(WS, Transport);
  
  /**
   * Transport name.
   *
   * @api public
   */
  
  WS.prototype.name = 'websocket';
  
  /*
   * WebSockets support binary
   */
  
  WS.prototype.supportsBinary = true;
  
  /**
   * Opens socket.
   *
   * @api private
   */
  
  WS.prototype.doOpen = function () {
    if (!this.check()) {
      // let probe timeout
      return;
    }
  
    var uri = this.uri();
    var protocols = void (0);
    var opts = {
      agent: this.agent,
      perMessageDeflate: this.perMessageDeflate
    };
  
    // SSL options for Node.js client
    opts.pfx = this.pfx;
    opts.key = this.key;
    opts.passphrase = this.passphrase;
    opts.cert = this.cert;
    opts.ca = this.ca;
    opts.ciphers = this.ciphers;
    opts.rejectUnauthorized = this.rejectUnauthorized;
    if (this.extraHeaders) {
      opts.headers = this.extraHeaders;
    }
    if (this.localAddress) {
      opts.localAddress = this.localAddress;
    }
  
    try {
      this.ws = this.usingBrowserWebSocket ? new WebSocket(uri) : new WebSocket(uri, protocols, opts);
    } catch (err) {
      return this.emit('error', err);
    }
  
    if (this.ws.binaryType === undefined) {
      this.supportsBinary = false;
    }
  
    if (this.ws.supports && this.ws.supports.binary) {
      this.supportsBinary = true;
      this.ws.binaryType = 'nodebuffer';
    } else {
      this.ws.binaryType = 'arraybuffer';
    }
  
    this.addEventListeners();
  };
  
  /**
   * Adds event listeners to the socket
   *
   * @api private
   */
  
  WS.prototype.addEventListeners = function () {
    var self = this;
  
    this.ws.onopen = function () {
      self.onOpen();
    };
    this.ws.onclose = function () {
      self.onClose();
    };
    this.ws.onmessage = function (ev) {
      self.onData(ev.data);
    };
    this.ws.onerror = function (e) {
      self.onError('websocket error', e);
    };
  };
  
  /**
   * Writes data to socket.
   *
   * @param {Array} array of packets.
   * @api private
   */
  
  WS.prototype.write = function (packets) {
    var self = this;
    this.writable = false;
  
    // encodePacket efficient as it uses WS framing
    // no need for encodePayload
    var total = packets.length;
    for (var i = 0, l = total; i < l; i++) {
      (function (packet) {
        parser.encodePacket(packet, self.supportsBinary, function (data) {
          if (!self.usingBrowserWebSocket) {
            // always create a new object (GH-437)
            var opts = {};
            if (packet.options) {
              opts.compress = packet.options.compress;
            }
  
            if (self.perMessageDeflate) {
              var len = 'string' === typeof data ? global.Buffer.byteLength(data) : data.length;
              if (len < self.perMessageDeflate.threshold) {
                opts.compress = false;
              }
            }
          }
  
          // Sometimes the websocket has already been closed but the browser didn't
          // have a chance of informing us about it yet, in that case send will
          // throw an error
          try {
            if (self.usingBrowserWebSocket) {
              // TypeError is thrown when passing the second argument on Safari
              self.ws.send(data);
            } else {
              self.ws.send(data, opts);
            }
          } catch (e) {
            debug('websocket closed before onclose event');
          }
  
          --total || done();
        });
      })(packets[i]);
    }
  
    function done () {
      self.emit('flush');
  
      // fake drain
      // defer to next tick to allow Socket to clear writeBuffer
      setTimeout(function () {
        self.writable = true;
        self.emit('drain');
      }, 0);
    }
  };
  
  /**
   * Called upon close
   *
   * @api private
   */
  
  WS.prototype.onClose = function () {
    Transport.prototype.onClose.call(this);
  };
  
  /**
   * Closes socket.
   *
   * @api private
   */
  
  WS.prototype.doClose = function () {
    if (typeof this.ws !== 'undefined') {
      this.ws.close();
    }
  };
  
  /**
   * Generates uri for connection.
   *
   * @api private
   */
  
  WS.prototype.uri = function () {
    var query = this.query || {};
    var schema = this.secure ? 'wss' : 'ws';
    var port = '';
  
    // avoid port if default for schema
    if (this.port && (('wss' === schema && Number(this.port) !== 443) ||
      ('ws' === schema && Number(this.port) !== 80))) {
      port = ':' + this.port;
    }
  
    // append timestamp to URI
    if (this.timestampRequests) {
      query[this.timestampParam] = yeast();
    }
  
    // communicate binary support capabilities
    if (!this.supportsBinary) {
      query.b64 = 1;
    }
  
    query = parseqs.encode(query);
  
    // prepend ? to query
    if (query.length) {
      query = '?' + query;
    }
  
    var ipv6 = this.hostname.indexOf(':') !== -1;
    return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
  };
  
  /**
   * Feature detection for WebSocket.
   *
   * @return {Boolean} whether this transport is available.
   * @api public
   */
  
  WS.prototype.check = function () {
    return !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name);
  };
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{"../transport":33,"component-inherit":27,"debug":40,"engine.io-parser":43,"parseqs":69,"ws":25,"yeast":76}],39:[function(_dereq_,module,exports){
  (function (global){
  // browser shim for xmlhttprequest module
  
  var hasCORS = _dereq_('has-cors');
  
  module.exports = function (opts) {
    var xdomain = opts.xdomain;
  
    // scheme must be same when usign XDomainRequest
    // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
    var xscheme = opts.xscheme;
  
    // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
    // https://github.com/Automattic/engine.io-client/pull/217
    var enablesXDR = opts.enablesXDR;
  
    // XMLHttpRequest can be disabled on IE
    try {
      if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
        return new XMLHttpRequest();
      }
    } catch (e) { }
  
    // Use XDomainRequest for IE8 if enablesXDR is true
    // because loading bar keeps flashing when using jsonp-polling
    // https://github.com/yujiosaka/socke.io-ie8-loading-example
    try {
      if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {
        return new XDomainRequest();
      }
    } catch (e) { }
  
    if (!xdomain) {
      try {
        return new global[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');
      } catch (e) { }
    }
  };
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{"has-cors":48}],40:[function(_dereq_,module,exports){
  (function (process){
  
  /**
   * This is the web browser implementation of `debug()`.
   *
   * Expose `debug()` as the module.
   */
  
  exports = module.exports = _dereq_('./debug');
  exports.log = log;
  exports.formatArgs = formatArgs;
  exports.save = save;
  exports.load = load;
  exports.useColors = useColors;
  exports.storage = 'undefined' != typeof chrome
                 && 'undefined' != typeof chrome.storage
                    ? chrome.storage.local
                    : localstorage();
  
  /**
   * Colors.
   */
  
  exports.colors = [
    'lightseagreen',
    'forestgreen',
    'goldenrod',
    'dodgerblue',
    'darkorchid',
    'crimson'
  ];
  
  /**
   * Currently only WebKit-based Web Inspectors, Firefox >= v31,
   * and the Firebug extension (any Firefox version) are known
   * to support "%c" CSS customizations.
   *
   * TODO: add a `localStorage` variable to explicitly enable/disable colors
   */
  
  function useColors() {
    // is webkit? http://stackoverflow.com/a/16459606/376773
    // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632
    return (typeof document !== 'undefined' && 'WebkitAppearance' in document.documentElement.style) ||
      // is firebug? http://stackoverflow.com/a/398120/376773
      (window.console && (console.firebug || (console.exception && console.table))) ||
      // is firefox >= v31?
      // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
      (navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31);
  }
  
  /**
   * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
   */
  
  exports.formatters.j = function(v) {
    try {
      return JSON.stringify(v);
    } catch (err) {
      return '[UnexpectedJSONParseError]: ' + err.message;
    }
  };
  
  
  /**
   * Colorize log arguments if enabled.
   *
   * @api public
   */
  
  function formatArgs() {
    var args = arguments;
    var useColors = this.useColors;
  
    args[0] = (useColors ? '%c' : '')
      + this.namespace
      + (useColors ? ' %c' : ' ')
      + args[0]
      + (useColors ? '%c ' : ' ')
      + '+' + exports.humanize(this.diff);
  
    if (!useColors) return args;
  
    var c = 'color: ' + this.color;
    args = [args[0], c, 'color: inherit'].concat(Array.prototype.slice.call(args, 1));
  
    // the final "%c" is somewhat tricky, because there could be other
    // arguments passed either before or after the %c, so we need to
    // figure out the correct index to insert the CSS into
    var index = 0;
    var lastC = 0;
    args[0].replace(/%[a-z%]/g, function(match) {
      if ('%%' === match) return;
      index++;
      if ('%c' === match) {
        // we only are interested in the *last* %c
        // (the user may have provided their own)
        lastC = index;
      }
    });
  
    args.splice(lastC, 0, c);
    return args;
  }
  
  /**
   * Invokes `console.log()` when available.
   * No-op when `console.log` is not a "function".
   *
   * @api public
   */
  
  function log() {
    // this hackery is required for IE8/9, where
    // the `console.log` function doesn't have 'apply'
    return 'object' === typeof console
      && console.log
      && Function.prototype.apply.call(console.log, console, arguments);
  }
  
  /**
   * Save `namespaces`.
   *
   * @param {String} namespaces
   * @api private
   */
  
  function save(namespaces) {
    try {
      if (null == namespaces) {
        exports.storage.removeItem('debug');
      } else {
        exports.storage.debug = namespaces;
      }
    } catch(e) {}
  }
  
  /**
   * Load `namespaces`.
   *
   * @return {String} returns the previously persisted debug modes
   * @api private
   */
  
  function load() {
    var r;
    try {
      return exports.storage.debug;
    } catch(e) {}
  
    // If debug isn't set in LS, and we're in Electron, try to load $DEBUG
    if (typeof process !== 'undefined' && 'env' in process) {
      return process.env.DEBUG;
    }
  }
  
  /**
   * Enable namespaces listed in `localStorage.debug` initially.
   */
  
  exports.enable(load());
  
  /**
   * Localstorage attempts to return the localstorage.
   *
   * This is necessary because safari throws
   * when a user disables cookies/localstorage
   * and you attempt to access it.
   *
   * @return {LocalStorage}
   * @api private
   */
  
  function localstorage(){
    try {
      return window.localStorage;
    } catch (e) {}
  }
  
  }).call(this,_dereq_('_process'))
  },{"./debug":41,"_process":74}],41:[function(_dereq_,module,exports){
  
  /**
   * This is the common logic for both the Node.js and web browser
   * implementations of `debug()`.
   *
   * Expose `debug()` as the module.
   */
  
  exports = module.exports = debug.debug = debug;
  exports.coerce = coerce;
  exports.disable = disable;
  exports.enable = enable;
  exports.enabled = enabled;
  exports.humanize = _dereq_('ms');
  
  /**
   * The currently active debug mode names, and names to skip.
   */
  
  exports.names = [];
  exports.skips = [];
  
  /**
   * Map of special "%n" handling functions, for the debug "format" argument.
   *
   * Valid key names are a single, lowercased letter, i.e. "n".
   */
  
  exports.formatters = {};
  
  /**
   * Previously assigned color.
   */
  
  var prevColor = 0;
  
  /**
   * Previous log timestamp.
   */
  
  var prevTime;
  
  /**
   * Select a color.
   *
   * @return {Number}
   * @api private
   */
  
  function selectColor() {
    return exports.colors[prevColor++ % exports.colors.length];
  }
  
  /**
   * Create a debugger with the given `namespace`.
   *
   * @param {String} namespace
   * @return {Function}
   * @api public
   */
  
  function debug(namespace) {
  
    // define the `disabled` version
    function disabled() {
    }
    disabled.enabled = false;
  
    // define the `enabled` version
    function enabled() {
  
      var self = enabled;
  
      // set `diff` timestamp
      var curr = +new Date();
      var ms = curr - (prevTime || curr);
      self.diff = ms;
      self.prev = prevTime;
      self.curr = curr;
      prevTime = curr;
  
      // add the `color` if not set
      if (null == self.useColors) self.useColors = exports.useColors();
      if (null == self.color && self.useColors) self.color = selectColor();
  
      var args = new Array(arguments.length);
      for (var i = 0; i < args.length; i++) {
        args[i] = arguments[i];
      }
  
      args[0] = exports.coerce(args[0]);
  
      if ('string' !== typeof args[0]) {
        // anything else let's inspect with %o
        args = ['%o'].concat(args);
      }
  
      // apply any `formatters` transformations
      var index = 0;
      args[0] = args[0].replace(/%([a-z%])/g, function(match, format) {
        // if we encounter an escaped % then don't increase the array index
        if (match === '%%') return match;
        index++;
        var formatter = exports.formatters[format];
        if ('function' === typeof formatter) {
          var val = args[index];
          match = formatter.call(self, val);
  
          // now we need to remove `args[index]` since it's inlined in the `format`
          args.splice(index, 1);
          index--;
        }
        return match;
      });
  
      // apply env-specific formatting
      args = exports.formatArgs.apply(self, args);
  
      var logFn = enabled.log || exports.log || console.log.bind(console);
      logFn.apply(self, args);
    }
    enabled.enabled = true;
  
    var fn = exports.enabled(namespace) ? enabled : disabled;
  
    fn.namespace = namespace;
  
    return fn;
  }
  
  /**
   * Enables a debug mode by namespaces. This can include modes
   * separated by a colon and wildcards.
   *
   * @param {String} namespaces
   * @api public
   */
  
  function enable(namespaces) {
    exports.save(namespaces);
  
    var split = (namespaces || '').split(/[\s,]+/);
    var len = split.length;
  
    for (var i = 0; i < len; i++) {
      if (!split[i]) continue; // ignore empty strings
      namespaces = split[i].replace(/[\\^$+?.()|[\]{}]/g, '\\$&').replace(/\*/g, '.*?');
      if (namespaces[0] === '-') {
        exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
      } else {
        exports.names.push(new RegExp('^' + namespaces + '$'));
      }
    }
  }
  
  /**
   * Disable debug output.
   *
   * @api public
   */
  
  function disable() {
    exports.enable('');
  }
  
  /**
   * Returns true if the given mode name is enabled, false otherwise.
   *
   * @param {String} name
   * @return {Boolean}
   * @api public
   */
  
  function enabled(name) {
    var i, len;
    for (i = 0, len = exports.skips.length; i < len; i++) {
      if (exports.skips[i].test(name)) {
        return false;
      }
    }
    for (i = 0, len = exports.names.length; i < len; i++) {
      if (exports.names[i].test(name)) {
        return true;
      }
    }
    return false;
  }
  
  /**
   * Coerce `val`.
   *
   * @param {Mixed} val
   * @return {Mixed}
   * @api private
   */
  
  function coerce(val) {
    if (val instanceof Error) return val.stack || val.message;
    return val;
  }
  
  },{"ms":42}],42:[function(_dereq_,module,exports){
  /**
   * Helpers.
   */
  
  var s = 1000
  var m = s * 60
  var h = m * 60
  var d = h * 24
  var y = d * 365.25
  
  /**
   * Parse or format the given `val`.
   *
   * Options:
   *
   *  - `long` verbose formatting [false]
   *
   * @param {String|Number} val
   * @param {Object} options
   * @throws {Error} throw an error if val is not a non-empty string or a number
   * @return {String|Number}
   * @api public
   */
  
  module.exports = function (val, options) {
    options = options || {}
    var type = typeof val
    if (type === 'string' && val.length > 0) {
      return parse(val)
    } else if (type === 'number' && isNaN(val) === false) {
      return options["long"] ?
  			fmtLong(val) :
  			fmtShort(val)
    }
    throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val))
  }
  
  /**
   * Parse the given `str` and return milliseconds.
   *
   * @param {String} str
   * @return {Number}
   * @api private
   */
  
  function parse(str) {
    str = String(str)
    if (str.length > 10000) {
      return
    }
    var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(str)
    if (!match) {
      return
    }
    var n = parseFloat(match[1])
    var type = (match[2] || 'ms').toLowerCase()
    switch (type) {
      case 'years':
      case 'year':
      case 'yrs':
      case 'yr':
      case 'y':
        return n * y
      case 'days':
      case 'day':
      case 'd':
        return n * d
      case 'hours':
      case 'hour':
      case 'hrs':
      case 'hr':
      case 'h':
        return n * h
      case 'minutes':
      case 'minute':
      case 'mins':
      case 'min':
      case 'm':
        return n * m
      case 'seconds':
      case 'second':
      case 'secs':
      case 'sec':
      case 's':
        return n * s
      case 'milliseconds':
      case 'millisecond':
      case 'msecs':
      case 'msec':
      case 'ms':
        return n
      default:
        return undefined
    }
  }
  
  /**
   * Short format for `ms`.
   *
   * @param {Number} ms
   * @return {String}
   * @api private
   */
  
  function fmtShort(ms) {
    if (ms >= d) {
      return Math.round(ms / d) + 'd'
    }
    if (ms >= h) {
      return Math.round(ms / h) + 'h'
    }
    if (ms >= m) {
      return Math.round(ms / m) + 'm'
    }
    if (ms >= s) {
      return Math.round(ms / s) + 's'
    }
    return ms + 'ms'
  }
  
  /**
   * Long format for `ms`.
   *
   * @param {Number} ms
   * @return {String}
   * @api private
   */
  
  function fmtLong(ms) {
    return plural(ms, d, 'day') ||
      plural(ms, h, 'hour') ||
      plural(ms, m, 'minute') ||
      plural(ms, s, 'second') ||
      ms + ' ms'
  }
  
  /**
   * Pluralization helper.
   */
  
  function plural(ms, n, name) {
    if (ms < n) {
      return
    }
    if (ms < n * 1.5) {
      return Math.floor(ms / n) + ' ' + name
    }
    return Math.ceil(ms / n) + ' ' + name + 's'
  }
  
  },{}],43:[function(_dereq_,module,exports){
  (function (global){
  /**
   * Module dependencies.
   */
  
  var keys = _dereq_('./keys');
  var hasBinary = _dereq_('has-binary');
  var sliceBuffer = _dereq_('arraybuffer.slice');
  var after = _dereq_('after');
  var utf8 = _dereq_('wtf-8');
  
  var base64encoder;
  if (global && global.ArrayBuffer) {
    base64encoder = _dereq_('base64-arraybuffer');
  }
  
  /**
   * Check if we are running an android browser. That requires us to use
   * ArrayBuffer with polling transports...
   *
   * http://ghinda.net/jpeg-blob-ajax-android/
   */
  
  var isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);
  
  /**
   * Check if we are running in PhantomJS.
   * Uploading a Blob with PhantomJS does not work correctly, as reported here:
   * https://github.com/ariya/phantomjs/issues/11395
   * @type boolean
   */
  var isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);
  
  /**
   * When true, avoids using Blobs to encode payloads.
   * @type boolean
   */
  var dontSendBlobs = isAndroid || isPhantomJS;
  
  /**
   * Current protocol version.
   */
  
  exports.protocol = 3;
  
  /**
   * Packet types.
   */
  
  var packets = exports.packets = {
      open:     0    // non-ws
    , close:    1    // non-ws
    , ping:     2
    , pong:     3
    , message:  4
    , upgrade:  5
    , noop:     6
  };
  
  var packetslist = keys(packets);
  
  /**
   * Premade error packet.
   */
  
  var err = { type: 'error', data: 'parser error' };
  
  /**
   * Create a blob api even for blob builder when vendor prefixes exist
   */
  
  var Blob = _dereq_('blob');
  
  /**
   * Encodes a packet.
   *
   *     <packet type id> [ <data> ]
   *
   * Example:
   *
   *     5hello world
   *     3
   *     4
   *
   * Binary is encoded in an identical principle
   *
   * @api private
   */
  
  exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
    if ('function' == typeof supportsBinary) {
      callback = supportsBinary;
      supportsBinary = false;
    }
  
    if ('function' == typeof utf8encode) {
      callback = utf8encode;
      utf8encode = null;
    }
  
    var data = (packet.data === undefined)
      ? undefined
      : packet.data.buffer || packet.data;
  
    if (global.ArrayBuffer && data instanceof ArrayBuffer) {
      return encodeArrayBuffer(packet, supportsBinary, callback);
    } else if (Blob && data instanceof global.Blob) {
      return encodeBlob(packet, supportsBinary, callback);
    }
  
    // might be an object with { base64: true, data: dataAsBase64String }
    if (data && data.base64) {
      return encodeBase64Object(packet, callback);
    }
  
    // Sending data as a utf-8 string
    var encoded = packets[packet.type];
  
    // data fragment is optional
    if (undefined !== packet.data) {
      encoded += utf8encode ? utf8.encode(String(packet.data)) : String(packet.data);
    }
  
    return callback('' + encoded);
  
  };
  
  function encodeBase64Object(packet, callback) {
    // packet data is an object { base64: true, data: dataAsBase64String }
    var message = 'b' + exports.packets[packet.type] + packet.data.data;
    return callback(message);
  }
  
  /**
   * Encode packet helpers for binary types
   */
  
  function encodeArrayBuffer(packet, supportsBinary, callback) {
    if (!supportsBinary) {
      return exports.encodeBase64Packet(packet, callback);
    }
  
    var data = packet.data;
    var contentArray = new Uint8Array(data);
    var resultBuffer = new Uint8Array(1 + data.byteLength);
  
    resultBuffer[0] = packets[packet.type];
    for (var i = 0; i < contentArray.length; i++) {
      resultBuffer[i+1] = contentArray[i];
    }
  
    return callback(resultBuffer.buffer);
  }
  
  function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
    if (!supportsBinary) {
      return exports.encodeBase64Packet(packet, callback);
    }
  
    var fr = new FileReader();
    fr.onload = function() {
      packet.data = fr.result;
      exports.encodePacket(packet, supportsBinary, true, callback);
    };
    return fr.readAsArrayBuffer(packet.data);
  }
  
  function encodeBlob(packet, supportsBinary, callback) {
    if (!supportsBinary) {
      return exports.encodeBase64Packet(packet, callback);
    }
  
    if (dontSendBlobs) {
      return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
    }
  
    var length = new Uint8Array(1);
    length[0] = packets[packet.type];
    var blob = new Blob([length.buffer, packet.data]);
  
    return callback(blob);
  }
  
  /**
   * Encodes a packet with binary data in a base64 string
   *
   * @param {Object} packet, has `type` and `data`
   * @return {String} base64 encoded message
   */
  
  exports.encodeBase64Packet = function(packet, callback) {
    var message = 'b' + exports.packets[packet.type];
    if (Blob && packet.data instanceof global.Blob) {
      var fr = new FileReader();
      fr.onload = function() {
        var b64 = fr.result.split(',')[1];
        callback(message + b64);
      };
      return fr.readAsDataURL(packet.data);
    }
  
    var b64data;
    try {
      b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
    } catch (e) {
      // iPhone Safari doesn't let you apply with typed arrays
      var typed = new Uint8Array(packet.data);
      var basic = new Array(typed.length);
      for (var i = 0; i < typed.length; i++) {
        basic[i] = typed[i];
      }
      b64data = String.fromCharCode.apply(null, basic);
    }
    message += global.btoa(b64data);
    return callback(message);
  };
  
  /**
   * Decodes a packet. Changes format to Blob if requested.
   *
   * @return {Object} with `type` and `data` (if any)
   * @api private
   */
  
  exports.decodePacket = function (data, binaryType, utf8decode) {
    if (data === undefined) {
      return err;
    }
    // String data
    if (typeof data == 'string') {
      if (data.charAt(0) == 'b') {
        return exports.decodeBase64Packet(data.substr(1), binaryType);
      }
  
      if (utf8decode) {
        data = tryDecode(data);
        if (data === false) {
          return err;
        }
      }
      var type = data.charAt(0);
  
      if (Number(type) != type || !packetslist[type]) {
        return err;
      }
  
      if (data.length > 1) {
        return { type: packetslist[type], data: data.substring(1) };
      } else {
        return { type: packetslist[type] };
      }
    }
  
    var asArray = new Uint8Array(data);
    var type = asArray[0];
    var rest = sliceBuffer(data, 1);
    if (Blob && binaryType === 'blob') {
      rest = new Blob([rest]);
    }
    return { type: packetslist[type], data: rest };
  };
  
  function tryDecode(data) {
    try {
      data = utf8.decode(data);
    } catch (e) {
      return false;
    }
    return data;
  }
  
  /**
   * Decodes a packet encoded in a base64 string
   *
   * @param {String} base64 encoded message
   * @return {Object} with `type` and `data` (if any)
   */
  
  exports.decodeBase64Packet = function(msg, binaryType) {
    var type = packetslist[msg.charAt(0)];
    if (!base64encoder) {
      return { type: type, data: { base64: true, data: msg.substr(1) } };
    }
  
    var data = base64encoder.decode(msg.substr(1));
  
    if (binaryType === 'blob' && Blob) {
      data = new Blob([data]);
    }
  
    return { type: type, data: data };
  };
  
  /**
   * Encodes multiple messages (payload).
   *
   *     <length>:data
   *
   * Example:
   *
   *     11:hello world2:hi
   *
   * If any contents are binary, they will be encoded as base64 strings. Base64
   * encoded strings are marked with a b before the length specifier
   *
   * @param {Array} packets
   * @api private
   */
  
  exports.encodePayload = function (packets, supportsBinary, callback) {
    if (typeof supportsBinary == 'function') {
      callback = supportsBinary;
      supportsBinary = null;
    }
  
    var isBinary = hasBinary(packets);
  
    if (supportsBinary && isBinary) {
      if (Blob && !dontSendBlobs) {
        return exports.encodePayloadAsBlob(packets, callback);
      }
  
      return exports.encodePayloadAsArrayBuffer(packets, callback);
    }
  
    if (!packets.length) {
      return callback('0:');
    }
  
    function setLengthHeader(message) {
      return message.length + ':' + message;
    }
  
    function encodeOne(packet, doneCallback) {
      exports.encodePacket(packet, !isBinary ? false : supportsBinary, true, function(message) {
        doneCallback(null, setLengthHeader(message));
      });
    }
  
    map(packets, encodeOne, function(err, results) {
      return callback(results.join(''));
    });
  };
  
  /**
   * Async array map using after
   */
  
  function map(ary, each, done) {
    var result = new Array(ary.length);
    var next = after(ary.length, done);
  
    var eachWithIndex = function(i, el, cb) {
      each(el, function(error, msg) {
        result[i] = msg;
        cb(error, result);
      });
    };
  
    for (var i = 0; i < ary.length; i++) {
      eachWithIndex(i, ary[i], next);
    }
  }
  
  /*
   * Decodes data when a payload is maybe expected. Possible binary contents are
   * decoded from their base64 representation
   *
   * @param {String} data, callback method
   * @api public
   */
  
  exports.decodePayload = function (data, binaryType, callback) {
    if (typeof data != 'string') {
      return exports.decodePayloadAsBinary(data, binaryType, callback);
    }
  
    if (typeof binaryType === 'function') {
      callback = binaryType;
      binaryType = null;
    }
  
    var packet;
    if (data == '') {
      // parser error - ignoring payload
      return callback(err, 0, 1);
    }
  
    var length = ''
      , n, msg;
  
    for (var i = 0, l = data.length; i < l; i++) {
      var chr = data.charAt(i);
  
      if (':' != chr) {
        length += chr;
      } else {
        if ('' == length || (length != (n = Number(length)))) {
          // parser error - ignoring payload
          return callback(err, 0, 1);
        }
  
        msg = data.substr(i + 1, n);
  
        if (length != msg.length) {
          // parser error - ignoring payload
          return callback(err, 0, 1);
        }
  
        if (msg.length) {
          packet = exports.decodePacket(msg, binaryType, true);
  
          if (err.type == packet.type && err.data == packet.data) {
            // parser error in individual packet - ignoring payload
            return callback(err, 0, 1);
          }
  
          var ret = callback(packet, i + n, l);
          if (false === ret) return;
        }
  
        // advance cursor
        i += n;
        length = '';
      }
    }
  
    if (length != '') {
      // parser error - ignoring payload
      return callback(err, 0, 1);
    }
  
  };
  
  /**
   * Encodes multiple messages (payload) as binary.
   *
   * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
   * 255><data>
   *
   * Example:
   * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
   *
   * @param {Array} packets
   * @return {ArrayBuffer} encoded payload
   * @api private
   */
  
  exports.encodePayloadAsArrayBuffer = function(packets, callback) {
    if (!packets.length) {
      return callback(new ArrayBuffer(0));
    }
  
    function encodeOne(packet, doneCallback) {
      exports.encodePacket(packet, true, true, function(data) {
        return doneCallback(null, data);
      });
    }
  
    map(packets, encodeOne, function(err, encodedPackets) {
      var totalLength = encodedPackets.reduce(function(acc, p) {
        var len;
        if (typeof p === 'string'){
          len = p.length;
        } else {
          len = p.byteLength;
        }
        return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
      }, 0);
  
      var resultArray = new Uint8Array(totalLength);
  
      var bufferIndex = 0;
      encodedPackets.forEach(function(p) {
        var isString = typeof p === 'string';
        var ab = p;
        if (isString) {
          var view = new Uint8Array(p.length);
          for (var i = 0; i < p.length; i++) {
            view[i] = p.charCodeAt(i);
          }
          ab = view.buffer;
        }
  
        if (isString) { // not true binary
          resultArray[bufferIndex++] = 0;
        } else { // true binary
          resultArray[bufferIndex++] = 1;
        }
  
        var lenStr = ab.byteLength.toString();
        for (var i = 0; i < lenStr.length; i++) {
          resultArray[bufferIndex++] = parseInt(lenStr[i]);
        }
        resultArray[bufferIndex++] = 255;
  
        var view = new Uint8Array(ab);
        for (var i = 0; i < view.length; i++) {
          resultArray[bufferIndex++] = view[i];
        }
      });
  
      return callback(resultArray.buffer);
    });
  };
  
  /**
   * Encode as Blob
   */
  
  exports.encodePayloadAsBlob = function(packets, callback) {
    function encodeOne(packet, doneCallback) {
      exports.encodePacket(packet, true, true, function(encoded) {
        var binaryIdentifier = new Uint8Array(1);
        binaryIdentifier[0] = 1;
        if (typeof encoded === 'string') {
          var view = new Uint8Array(encoded.length);
          for (var i = 0; i < encoded.length; i++) {
            view[i] = encoded.charCodeAt(i);
          }
          encoded = view.buffer;
          binaryIdentifier[0] = 0;
        }
  
        var len = (encoded instanceof ArrayBuffer)
          ? encoded.byteLength
          : encoded.size;
  
        var lenStr = len.toString();
        var lengthAry = new Uint8Array(lenStr.length + 1);
        for (var i = 0; i < lenStr.length; i++) {
          lengthAry[i] = parseInt(lenStr[i]);
        }
        lengthAry[lenStr.length] = 255;
  
        if (Blob) {
          var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
          doneCallback(null, blob);
        }
      });
    }
  
    map(packets, encodeOne, function(err, results) {
      return callback(new Blob(results));
    });
  };
  
  /*
   * Decodes data when a payload is maybe expected. Strings are decoded by
   * interpreting each byte as a key code for entries marked to start with 0. See
   * description of encodePayloadAsBinary
   *
   * @param {ArrayBuffer} data, callback method
   * @api public
   */
  
  exports.decodePayloadAsBinary = function (data, binaryType, callback) {
    if (typeof binaryType === 'function') {
      callback = binaryType;
      binaryType = null;
    }
  
    var bufferTail = data;
    var buffers = [];
  
    var numberTooLong = false;
    while (bufferTail.byteLength > 0) {
      var tailArray = new Uint8Array(bufferTail);
      var isString = tailArray[0] === 0;
      var msgLength = '';
  
      for (var i = 1; ; i++) {
        if (tailArray[i] == 255) break;
  
        if (msgLength.length > 310) {
          numberTooLong = true;
          break;
        }
  
        msgLength += tailArray[i];
      }
  
      if(numberTooLong) return callback(err, 0, 1);
  
      bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
      msgLength = parseInt(msgLength);
  
      var msg = sliceBuffer(bufferTail, 0, msgLength);
      if (isString) {
        try {
          msg = String.fromCharCode.apply(null, new Uint8Array(msg));
        } catch (e) {
          // iPhone Safari doesn't let you apply to typed arrays
          var typed = new Uint8Array(msg);
          msg = '';
          for (var i = 0; i < typed.length; i++) {
            msg += String.fromCharCode(typed[i]);
          }
        }
      }
  
      buffers.push(msg);
      bufferTail = sliceBuffer(bufferTail, msgLength);
    }
  
    var total = buffers.length;
    buffers.forEach(function(buffer, i) {
      callback(exports.decodePacket(buffer, binaryType, true), i, total);
    });
  };
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{"./keys":44,"after":19,"arraybuffer.slice":20,"base64-arraybuffer":21,"blob":24,"has-binary":47,"wtf-8":75}],44:[function(_dereq_,module,exports){
  
  /**
   * Gets the keys for an object.
   *
   * @return {Array} keys
   * @api private
   */
  
  module.exports = Object.keys || function keys (obj){
    var arr = [];
    var has = Object.prototype.hasOwnProperty;
  
    for (var i in obj) {
      if (has.call(obj, i)) {
        arr.push(i);
      }
    }
    return arr;
  };
  
  },{}],45:[function(_dereq_,module,exports){
  module.exports = _dereq_('./lib');
  },{"./lib":46}],46:[function(_dereq_,module,exports){
  /**
   * Module dependencies.
   */
  
  var debug = _dereq_('debug')('engine.io-reconnect');
  
  // Get bind component for node and browser.
  var bind = _dereq_('bind');
  
  /**
   * Module exports.
   */
  
  module.exports = Reconnect;
  
  /**
   * `Reconnect` constructor.
   *
   * @param {Socket} engine instance
   * @param {Object} options
   * @api public
   */
  
  function Reconnect(io, opts) {
    if (!(this instanceof Reconnect)) return new Reconnect(io, opts);
  
    opts = opts || {};
    this.io = io;
    this.attempt = 0;
    this.timeoutTimer = null;
    this.reconnectTimer = null;
    this.attempts(opts.attempts || Infinity);
    this.delay(opts.delay || 1000);
    this.delayMax(opts.delayMax || 5000);
    this.timeout(null == opts.timeout ? 10000 : opts.timeout);
    this.reconnection(null == opts.reconnection ? true : opts.reconnection);
  
    // we need to overwrite socket close method
    this._close = this.io.close;
  
    // bind events
    this.bind();
    this.connected = false;
    this.times = 0;
  
    // lets return the socket object
    return this.io;
  }
  
  /**
   * Bind `socket` events.
   *
   * @api private
   */
  
  Reconnect.prototype.bind = function () {
  
    debug('binding reconnect events and methods');
  
    // avoid unnecessary binds
    if (this.io.reconnect) return this;
  
    // overwriting socket close method
    this.io.close = bind(this, 'close');
  
    // adding reconnect methods to socket
    this.io.reconnect = bind(this, 'reconnect');
    this.io.reconnection = bind(this, 'reconnection');
    this.io.reconnectionDelay = bind(this, 'delay');
    this.io.reconnectionDelayMax = bind(this, 'delayMax');
    this.io.reconnectionTimeout = bind(this, 'timeout');
    this.io.reconnectionAttempts = bind(this, 'attempts');
  
    // caching event functions
    this.onclose = bind(this, 'onclose');
  
    // doing the actuall bind
    this.io.on('close', this.onclose);
  };
  
  /**
   * Close the current socket.
   *
   * @api private
   */
  
  Reconnect.prototype.close = function () {
    this.skip = true;
    // lets return the original close output
    return this._close.call(this.io);
  };
  
  /**
   * Called upon engine close.
   *
   * @api private
   */
  
  Reconnect.prototype.onclose = function (reason, desc) {
    this.connected = false;
    if (!this.skip && this._reconnection) {
      this.reconnect();
    } else {
      this.clear();
    }
  };
  
  /**
   * Called upon connection error.
   *
   * @api private
   */
  
  Reconnect.prototype.onerror = function (error) {
    if (this.reconnecting) {
      debug('reconnect attempt error');
      this.reconnect();
      this.io.emit('connect_error', error);
    }
    return this;
  };
  
  /**
   * Clean timers.
   *
   * @api private
   */
  
  Reconnect.prototype.clear = function () {
    clearTimeout(this.reconnectTimer);
    clearTimeout(this.timeoutTimer);
    clearTimeout(this.checkTimer);
    this.reconnectTimer = null;
    this.timeoutTimer = null;
    this.checkTimer = null;
    return this;
  };
  
  /**
   * Sets the `reconnection` config.
   *
   * @param {Boolean} true/false if it should automatically reconnect
   * @return {Reconnect} self or value
   * @api public
   */
  
  Reconnect.prototype.reconnection = function (v) {
    if (!arguments.length) return this._reconnection;
    this._reconnection = !!v;
    return this;
  };
  
  /**
   * Sets the reconnection attempts config.
   *
   * @param {Number} max reconnection attempts before giving up
   * @return {Reconnect} self or value
   * @api public
   */
  
  Reconnect.prototype.attempts = function (v) {
    if (!arguments.length) return this._attempts;
    this._attempts = v;
    return this;
  };
  
  /**
   * Sets the delay between reconnections.
   *
   * @param {Number} delay
   * @return {Reconnect} self or value
   * @api public
   */
  
  Reconnect.prototype.delay = function (v) {
    if (!arguments.length) return this._delay;
    this._delay = v;
    return this;
  };
  
  /**
   * Sets the maximum delay between reconnections.
   *
   * @param {Number} delay
   * @return {Reconnect} self or value
   * @api public
   */
  
  Reconnect.prototype.delayMax = function (v) {
    if (!arguments.length) return this._delayMax;
    this._delayMax = v;
    return this;
  };
  
  /**
   * Sets the connection timeout. `false` to disable
   *
   * @return {Reconnect} self or value
   * @api public
   */
  
  Reconnect.prototype.timeout = function (v) {
    if (!arguments.length) return this._timeout;
    this._timeout = v;
    return this;
  };
  
  /**
   * Attempt to re-open `socket` connection.
   *
   * @return {Reconnect} self
   * @api private
   */
  
  Reconnect.prototype.open = function(fn) {
    this.io.open();
    this.on('open', fn);
    this.on('error', fn);
  
    if (false !== this._timeout && !this.timeoutTimer) {
      debug('connect attempt will timeout after %d', this._timeout);
      this.timeoutTimer = setTimeout(bind(this, function () {
        debug('connect attempt timed out after %d', this._timeout);
        this.close();
        this.clear();
        this.io.emit('reconnect_timeout', this._timeout);
      }), this._timeout);
    }
  };
  
  /**
   * Attempt a reconnection.
   *
   * @api private
   */
  
  Reconnect.prototype.reconnect = function (){
    this.attempt++;
    this.io.emit('reconnecting', this.attempt);
    if (this.attempt > this.attempts()) {
      this.io.emit('reconnect_failed');
      this.reconnecting = false;
    } else {
      var delay = this.attempt * this.delay();
      debug('will wait %dms before reconnect attempt', delay);
      this.reconnectTimer = setTimeout(bind(this, function() {
        debug('attemptign reconnect');
        this.open(bind(this, function(err){
          if (err) {
            debug('reconnect attempt error');
            this.reconnect();
            this.io.emit('reconnect_error', err);
          } else {
            debug('reconnect success');
            this.onreconnect();
          }
        }));
      }), delay);
    }
  };
  
  /**
   * Called upon successful reconnect.
   *
   * @api private
   */
  
  Reconnect.prototype.onreconnect = function () {
    var attempt = this.attempt;
    this.clear();
    this.attempt = 0;
    this.reconnecting = false;
    this.connected = true;
    this.io.emit('reconnect', attempt);
    return this;
  };
  
  /**
   * Little helper for binding events.
   *
   * @api private
   */
  
  Reconnect.prototype.on = function (ev, fn) {
    this.io.off(ev, this['_'+ev]);
    this.io.on(ev, this['_'+ev] = bind(this, fn));
    return this;
  };
  
  },{"bind":22,"debug":28}],47:[function(_dereq_,module,exports){
  (function (global){
  
  /*
   * Module requirements.
   */
  
  var isArray = _dereq_('isarray');
  
  /**
   * Module exports.
   */
  
  module.exports = hasBinary;
  
  /**
   * Checks for binary data.
   *
   * Right now only Buffer and ArrayBuffer are supported..
   *
   * @param {Object} anything
   * @api public
   */
  
  function hasBinary(data) {
  
    function _hasBinary(obj) {
      if (!obj) return false;
  
      if ( (global.Buffer && global.Buffer.isBuffer && global.Buffer.isBuffer(obj)) ||
           (global.ArrayBuffer && obj instanceof ArrayBuffer) ||
           (global.Blob && obj instanceof Blob) ||
           (global.File && obj instanceof File)
          ) {
        return true;
      }
  
      if (isArray(obj)) {
        for (var i = 0; i < obj.length; i++) {
            if (_hasBinary(obj[i])) {
                return true;
            }
        }
      } else if (obj && 'object' == typeof obj) {
        // see: https://github.com/Automattic/has-binary/pull/4
        if (obj.toJSON && 'function' == typeof obj.toJSON) {
          obj = obj.toJSON();
        }
  
        for (var key in obj) {
          if (Object.prototype.hasOwnProperty.call(obj, key) && _hasBinary(obj[key])) {
            return true;
          }
        }
      }
  
      return false;
    }
  
    return _hasBinary(data);
  }
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{"isarray":52}],48:[function(_dereq_,module,exports){
  
  /**
   * Module exports.
   *
   * Logic borrowed from Modernizr:
   *
   *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
   */
  
  try {
    module.exports = typeof XMLHttpRequest !== 'undefined' &&
      'withCredentials' in new XMLHttpRequest();
  } catch (err) {
    // if XMLHttp support is disabled in IE then it will throw
    // when trying to create
    module.exports = false;
  }
  
  },{}],49:[function(_dereq_,module,exports){
  (function (global){
  'use strict';
  var Mutation = global.MutationObserver || global.WebKitMutationObserver;
  
  var scheduleDrain;
  
  {
    if (Mutation) {
      var called = 0;
      var observer = new Mutation(nextTick);
      var element = global.document.createTextNode('');
      observer.observe(element, {
        characterData: true
      });
      scheduleDrain = function () {
        element.data = (called = ++called % 2);
      };
    } else if (!global.setImmediate && typeof global.MessageChannel !== 'undefined') {
      var channel = new global.MessageChannel();
      channel.port1.onmessage = nextTick;
      scheduleDrain = function () {
        channel.port2.postMessage(0);
      };
    } else if ('document' in global && 'onreadystatechange' in global.document.createElement('script')) {
      scheduleDrain = function () {
  
        // Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted
        // into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.
        var scriptEl = global.document.createElement('script');
        scriptEl.onreadystatechange = function () {
          nextTick();
  
          scriptEl.onreadystatechange = null;
          scriptEl.parentNode.removeChild(scriptEl);
          scriptEl = null;
        };
        global.document.documentElement.appendChild(scriptEl);
      };
    } else {
      scheduleDrain = function () {
        setTimeout(nextTick, 0);
      };
    }
  }
  
  var draining;
  var queue = [];
  //named nextTick for less confusing stack traces
  function nextTick() {
    draining = true;
    var i, oldQueue;
    var len = queue.length;
    while (len) {
      oldQueue = queue;
      queue = [];
      i = -1;
      while (++i < len) {
        oldQueue[i]();
      }
      len = queue.length;
    }
    draining = false;
  }
  
  module.exports = immediate;
  function immediate(task) {
    if (queue.push(task) === 1 && !draining) {
      scheduleDrain();
    }
  }
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{}],50:[function(_dereq_,module,exports){
  
  var indexOf = [].indexOf;
  
  module.exports = function(arr, obj){
    if (indexOf) return arr.indexOf(obj);
    for (var i = 0; i < arr.length; ++i) {
      if (arr[i] === obj) return i;
    }
    return -1;
  };
  },{}],51:[function(_dereq_,module,exports){
  if (typeof Object.create === 'function') {
    // implementation from standard node.js 'util' module
    module.exports = function inherits(ctor, superCtor) {
      ctor.super_ = superCtor
      ctor.prototype = Object.create(superCtor.prototype, {
        constructor: {
          value: ctor,
          enumerable: false,
          writable: true,
          configurable: true
        }
      });
    };
  } else {
    // old school shim for old browsers
    module.exports = function inherits(ctor, superCtor) {
      ctor.super_ = superCtor
      var TempCtor = function () {}
      TempCtor.prototype = superCtor.prototype
      ctor.prototype = new TempCtor()
      ctor.prototype.constructor = ctor
    }
  }
  
  },{}],52:[function(_dereq_,module,exports){
  module.exports = Array.isArray || function (arr) {
    return Object.prototype.toString.call(arr) == '[object Array]';
  };
  
  },{}],53:[function(_dereq_,module,exports){
  'use strict';
  
  module.exports = INTERNAL;
  
  function INTERNAL() {}
  },{}],54:[function(_dereq_,module,exports){
  'use strict';
  var Promise = _dereq_('./promise');
  var reject = _dereq_('./reject');
  var resolve = _dereq_('./resolve');
  var INTERNAL = _dereq_('./INTERNAL');
  var handlers = _dereq_('./handlers');
  module.exports = all;
  function all(iterable) {
    if (Object.prototype.toString.call(iterable) !== '[object Array]') {
      return reject(new TypeError('must be an array'));
    }
  
    var len = iterable.length;
    var called = false;
    if (!len) {
      return resolve([]);
    }
  
    var values = new Array(len);
    var resolved = 0;
    var i = -1;
    var promise = new Promise(INTERNAL);
    
    while (++i < len) {
      allResolver(iterable[i], i);
    }
    return promise;
    function allResolver(value, i) {
      resolve(value).then(resolveFromAll, function (error) {
        if (!called) {
          called = true;
          handlers.reject(promise, error);
        }
      });
      function resolveFromAll(outValue) {
        values[i] = outValue;
        if (++resolved === len & !called) {
          called = true;
          handlers.resolve(promise, values);
        }
      }
    }
  }
  },{"./INTERNAL":53,"./handlers":55,"./promise":57,"./reject":60,"./resolve":61}],55:[function(_dereq_,module,exports){
  'use strict';
  var tryCatch = _dereq_('./tryCatch');
  var resolveThenable = _dereq_('./resolveThenable');
  var states = _dereq_('./states');
  
  exports.resolve = function (self, value) {
    var result = tryCatch(getThen, value);
    if (result.status === 'error') {
      return exports.reject(self, result.value);
    }
    var thenable = result.value;
  
    if (thenable) {
      resolveThenable.safely(self, thenable);
    } else {
      self.state = states.FULFILLED;
      self.outcome = value;
      var i = -1;
      var len = self.queue.length;
      while (++i < len) {
        self.queue[i].callFulfilled(value);
      }
    }
    return self;
  };
  exports.reject = function (self, error) {
    self.state = states.REJECTED;
    self.outcome = error;
    var i = -1;
    var len = self.queue.length;
    while (++i < len) {
      self.queue[i].callRejected(error);
    }
    return self;
  };
  
  function getThen(obj) {
    // Make sure we only access the accessor once as required by the spec
    var then = obj && obj.then;
    if (obj && typeof obj === 'object' && typeof then === 'function') {
      return function appyThen() {
        then.apply(obj, arguments);
      };
    }
  }
  
  },{"./resolveThenable":62,"./states":63,"./tryCatch":64}],56:[function(_dereq_,module,exports){
  module.exports = exports = _dereq_('./promise');
  
  exports.resolve = _dereq_('./resolve');
  exports.reject = _dereq_('./reject');
  exports.all = _dereq_('./all');
  exports.race = _dereq_('./race');
  
  },{"./all":54,"./promise":57,"./race":59,"./reject":60,"./resolve":61}],57:[function(_dereq_,module,exports){
  'use strict';
  
  var unwrap = _dereq_('./unwrap');
  var INTERNAL = _dereq_('./INTERNAL');
  var resolveThenable = _dereq_('./resolveThenable');
  var states = _dereq_('./states');
  var QueueItem = _dereq_('./queueItem');
  
  module.exports = Promise;
  function Promise(resolver) {
    if (!(this instanceof Promise)) {
      return new Promise(resolver);
    }
    if (typeof resolver !== 'function') {
      throw new TypeError('resolver must be a function');
    }
    this.state = states.PENDING;
    this.queue = [];
    this.outcome = void 0;
    if (resolver !== INTERNAL) {
      resolveThenable.safely(this, resolver);
    }
  }
  
  Promise.prototype['catch'] = function (onRejected) {
    return this.then(null, onRejected);
  };
  Promise.prototype.then = function (onFulfilled, onRejected) {
    if (typeof onFulfilled !== 'function' && this.state === states.FULFILLED ||
      typeof onRejected !== 'function' && this.state === states.REJECTED) {
      return this;
    }
    var promise = new Promise(INTERNAL);
    if (this.state !== states.PENDING) {
      var resolver = this.state === states.FULFILLED ? onFulfilled : onRejected;
      unwrap(promise, resolver, this.outcome);
    } else {
      this.queue.push(new QueueItem(promise, onFulfilled, onRejected));
    }
  
    return promise;
  };
  
  },{"./INTERNAL":53,"./queueItem":58,"./resolveThenable":62,"./states":63,"./unwrap":65}],58:[function(_dereq_,module,exports){
  'use strict';
  var handlers = _dereq_('./handlers');
  var unwrap = _dereq_('./unwrap');
  
  module.exports = QueueItem;
  function QueueItem(promise, onFulfilled, onRejected) {
    this.promise = promise;
    if (typeof onFulfilled === 'function') {
      this.onFulfilled = onFulfilled;
      this.callFulfilled = this.otherCallFulfilled;
    }
    if (typeof onRejected === 'function') {
      this.onRejected = onRejected;
      this.callRejected = this.otherCallRejected;
    }
  }
  QueueItem.prototype.callFulfilled = function (value) {
    handlers.resolve(this.promise, value);
  };
  QueueItem.prototype.otherCallFulfilled = function (value) {
    unwrap(this.promise, this.onFulfilled, value);
  };
  QueueItem.prototype.callRejected = function (value) {
    handlers.reject(this.promise, value);
  };
  QueueItem.prototype.otherCallRejected = function (value) {
    unwrap(this.promise, this.onRejected, value);
  };
  
  },{"./handlers":55,"./unwrap":65}],59:[function(_dereq_,module,exports){
  'use strict';
  var Promise = _dereq_('./promise');
  var reject = _dereq_('./reject');
  var resolve = _dereq_('./resolve');
  var INTERNAL = _dereq_('./INTERNAL');
  var handlers = _dereq_('./handlers');
  module.exports = race;
  function race(iterable) {
    if (Object.prototype.toString.call(iterable) !== '[object Array]') {
      return reject(new TypeError('must be an array'));
    }
  
    var len = iterable.length;
    var called = false;
    if (!len) {
      return resolve([]);
    }
  
    var i = -1;
    var promise = new Promise(INTERNAL);
  
    while (++i < len) {
      resolver(iterable[i]);
    }
    return promise;
    function resolver(value) {
      resolve(value).then(function (response) {
        if (!called) {
          called = true;
          handlers.resolve(promise, response);
        }
      }, function (error) {
        if (!called) {
          called = true;
          handlers.reject(promise, error);
        }
      });
    }
  }
  
  },{"./INTERNAL":53,"./handlers":55,"./promise":57,"./reject":60,"./resolve":61}],60:[function(_dereq_,module,exports){
  'use strict';
  
  var Promise = _dereq_('./promise');
  var INTERNAL = _dereq_('./INTERNAL');
  var handlers = _dereq_('./handlers');
  module.exports = reject;
  
  function reject(reason) {
  	var promise = new Promise(INTERNAL);
  	return handlers.reject(promise, reason);
  }
  },{"./INTERNAL":53,"./handlers":55,"./promise":57}],61:[function(_dereq_,module,exports){
  'use strict';
  
  var Promise = _dereq_('./promise');
  var INTERNAL = _dereq_('./INTERNAL');
  var handlers = _dereq_('./handlers');
  module.exports = resolve;
  
  var FALSE = handlers.resolve(new Promise(INTERNAL), false);
  var NULL = handlers.resolve(new Promise(INTERNAL), null);
  var UNDEFINED = handlers.resolve(new Promise(INTERNAL), void 0);
  var ZERO = handlers.resolve(new Promise(INTERNAL), 0);
  var EMPTYSTRING = handlers.resolve(new Promise(INTERNAL), '');
  
  function resolve(value) {
    if (value) {
      if (value instanceof Promise) {
        return value;
      }
      return handlers.resolve(new Promise(INTERNAL), value);
    }
    var valueType = typeof value;
    switch (valueType) {
      case 'boolean':
        return FALSE;
      case 'undefined':
        return UNDEFINED;
      case 'object':
        return NULL;
      case 'number':
        return ZERO;
      case 'string':
        return EMPTYSTRING;
    }
  }
  },{"./INTERNAL":53,"./handlers":55,"./promise":57}],62:[function(_dereq_,module,exports){
  'use strict';
  var handlers = _dereq_('./handlers');
  var tryCatch = _dereq_('./tryCatch');
  function safelyResolveThenable(self, thenable) {
    // Either fulfill, reject or reject with error
    var called = false;
    function onError(value) {
      if (called) {
        return;
      }
      called = true;
      handlers.reject(self, value);
    }
  
    function onSuccess(value) {
      if (called) {
        return;
      }
      called = true;
      handlers.resolve(self, value);
    }
  
    function tryToUnwrap() {
      thenable(onSuccess, onError);
    }
    
    var result = tryCatch(tryToUnwrap);
    if (result.status === 'error') {
      onError(result.value);
    }
  }
  exports.safely = safelyResolveThenable;
  },{"./handlers":55,"./tryCatch":64}],63:[function(_dereq_,module,exports){
  // Lazy man's symbols for states
  
  exports.REJECTED = ['REJECTED'];
  exports.FULFILLED = ['FULFILLED'];
  exports.PENDING = ['PENDING'];
  
  },{}],64:[function(_dereq_,module,exports){
  'use strict';
  
  module.exports = tryCatch;
  
  function tryCatch(func, value) {
    var out = {};
    try {
      out.value = func(value);
      out.status = 'success';
    } catch (e) {
      out.status = 'error';
      out.value = e;
    }
    return out;
  }
  },{}],65:[function(_dereq_,module,exports){
  'use strict';
  
  var immediate = _dereq_('immediate');
  var handlers = _dereq_('./handlers');
  module.exports = unwrap;
  
  function unwrap(promise, func, value) {
    immediate(function () {
      var returnValue;
      try {
        returnValue = func(value);
      } catch (e) {
        return handlers.reject(promise, e);
      }
      if (returnValue === promise) {
        handlers.reject(promise, new TypeError('Cannot resolve promise with itself'));
      } else {
        handlers.resolve(promise, returnValue);
      }
    });
  }
  },{"./handlers":55,"immediate":49}],66:[function(_dereq_,module,exports){
  /**
   * Helpers.
   */
  
  var s = 1000;
  var m = s * 60;
  var h = m * 60;
  var d = h * 24;
  var y = d * 365.25;
  
  /**
   * Parse or format the given `val`.
   *
   * Options:
   *
   *  - `long` verbose formatting [false]
   *
   * @param {String|Number} val
   * @param {Object} [options]
   * @throws {Error} throw an error if val is not a non-empty string or a number
   * @return {String|Number}
   * @api public
   */
  
  module.exports = function(val, options) {
    options = options || {};
    var type = typeof val;
    if (type === 'string' && val.length > 0) {
      return parse(val);
    } else if (type === 'number' && isNaN(val) === false) {
      return options["long"] ? fmtLong(val) : fmtShort(val);
    }
    throw new Error(
      'val is not a non-empty string or a valid number. val=' +
        JSON.stringify(val)
    );
  };
  
  /**
   * Parse the given `str` and return milliseconds.
   *
   * @param {String} str
   * @return {Number}
   * @api private
   */
  
  function parse(str) {
    str = String(str);
    if (str.length > 100) {
      return;
    }
    var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(
      str
    );
    if (!match) {
      return;
    }
    var n = parseFloat(match[1]);
    var type = (match[2] || 'ms').toLowerCase();
    switch (type) {
      case 'years':
      case 'year':
      case 'yrs':
      case 'yr':
      case 'y':
        return n * y;
      case 'days':
      case 'day':
      case 'd':
        return n * d;
      case 'hours':
      case 'hour':
      case 'hrs':
      case 'hr':
      case 'h':
        return n * h;
      case 'minutes':
      case 'minute':
      case 'mins':
      case 'min':
      case 'm':
        return n * m;
      case 'seconds':
      case 'second':
      case 'secs':
      case 'sec':
      case 's':
        return n * s;
      case 'milliseconds':
      case 'millisecond':
      case 'msecs':
      case 'msec':
      case 'ms':
        return n;
      default:
        return undefined;
    }
  }
  
  /**
   * Short format for `ms`.
   *
   * @param {Number} ms
   * @return {String}
   * @api private
   */
  
  function fmtShort(ms) {
    if (ms >= d) {
      return Math.round(ms / d) + 'd';
    }
    if (ms >= h) {
      return Math.round(ms / h) + 'h';
    }
    if (ms >= m) {
      return Math.round(ms / m) + 'm';
    }
    if (ms >= s) {
      return Math.round(ms / s) + 's';
    }
    return ms + 'ms';
  }
  
  /**
   * Long format for `ms`.
   *
   * @param {Number} ms
   * @return {String}
   * @api private
   */
  
  function fmtLong(ms) {
    return plural(ms, d, 'day') ||
      plural(ms, h, 'hour') ||
      plural(ms, m, 'minute') ||
      plural(ms, s, 'second') ||
      ms + ' ms';
  }
  
  /**
   * Pluralization helper.
   */
  
  function plural(ms, n, name) {
    if (ms < n) {
      return;
    }
    if (ms < n * 1.5) {
      return Math.floor(ms / n) + ' ' + name;
    }
    return Math.ceil(ms / n) + ' ' + name + 's';
  }
  
  },{}],67:[function(_dereq_,module,exports){
  module.exports = typeof Promise === 'function' ? Promise : _dereq_('lie');
  
  },{"lie":56}],68:[function(_dereq_,module,exports){
  (function (global){
  /**
   * JSON parse.
   *
   * @see Based on jQuery#parseJSON (MIT) and JSON2
   * @api private
   */
  
  var rvalidchars = /^[\],:{}\s]*$/;
  var rvalidescape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g;
  var rvalidtokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g;
  var rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g;
  var rtrimLeft = /^\s+/;
  var rtrimRight = /\s+$/;
  
  module.exports = function parsejson(data) {
    if ('string' != typeof data || !data) {
      return null;
    }
  
    data = data.replace(rtrimLeft, '').replace(rtrimRight, '');
  
    // Attempt to parse using the native JSON parser first
    if (global.JSON && JSON.parse) {
      return JSON.parse(data);
    }
  
    if (rvalidchars.test(data.replace(rvalidescape, '@')
        .replace(rvalidtokens, ']')
        .replace(rvalidbraces, ''))) {
      return (new Function('return ' + data))();
    }
  };
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{}],69:[function(_dereq_,module,exports){
  /**
   * Compiles a querystring
   * Returns string representation of the object
   *
   * @param {Object}
   * @api private
   */
  
  exports.encode = function (obj) {
    var str = '';
  
    for (var i in obj) {
      if (obj.hasOwnProperty(i)) {
        if (str.length) str += '&';
        str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
      }
    }
  
    return str;
  };
  
  /**
   * Parses a simple querystring into an object
   *
   * @param {String} qs
   * @api private
   */
  
  exports.decode = function(qs){
    var qry = {};
    var pairs = qs.split('&');
    for (var i = 0, l = pairs.length; i < l; i++) {
      var pair = pairs[i].split('=');
      qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
    }
    return qry;
  };
  
  },{}],70:[function(_dereq_,module,exports){
  /**
   * Parses an URI
   *
   * @author Steven Levithan <stevenlevithan.com> (MIT license)
   * @api private
   */
  
  var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;
  
  var parts = [
      'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
  ];
  
  module.exports = function parseuri(str) {
      var src = str,
          b = str.indexOf('['),
          e = str.indexOf(']');
  
      if (b != -1 && e != -1) {
          str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
      }
  
      var m = re.exec(str || ''),
          uri = {},
          i = 14;
  
      while (i--) {
          uri[parts[i]] = m[i] || '';
      }
  
      if (b != -1 && e != -1) {
          uri.source = src;
          uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
          uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
          uri.ipv6uri = true;
      }
  
      return uri;
  };
  
  },{}],71:[function(_dereq_,module,exports){
  (function (global){
  "use strict";
  
  //Abstracts constructing a Blob object, so it also works in older
  //browsers that don't support the native Blob constructor. (i.e.
  //old QtWebKit versions, at least).
  function createBlob(parts, properties) {
    parts = parts || [];
    properties = properties || {};
    try {
      return new Blob(parts, properties);
    } catch (e) {
      if (e.name !== "TypeError") {
        throw e;
      }
      var BlobBuilder = global.BlobBuilder ||
                        global.MSBlobBuilder ||
                        global.MozBlobBuilder ||
                        global.WebKitBlobBuilder;
      var builder = new BlobBuilder();
      for (var i = 0; i < parts.length; i += 1) {
        builder.append(parts[i]);
      }
      return builder.getBlob(properties.type);
    }
  }
  
  //Can't find original post, but this is close
  //http://stackoverflow.com/questions/6965107/ (continues on next line)
  //converting-between-strings-and-arraybuffers
  function arrayBufferToBinaryString(buffer) {
    var binary = "";
    var bytes = new Uint8Array(buffer);
    var length = bytes.byteLength;
    for (var i = 0; i < length; i++) {
      binary += String.fromCharCode(bytes[i]);
    }
    return binary;
  }
  
  // This used to be called "fixBinary", which wasn't a very evocative name
  // From http://stackoverflow.com/questions/14967647/ (continues on next line)
  // encode-decode-image-with-base64-breaks-image (2013-04-21)
  function binaryStringToArrayBuffer(bin) {
    var length = bin.length;
    var buf = new ArrayBuffer(length);
    var arr = new Uint8Array(buf);
    for (var i = 0; i < length; i++) {
      arr[i] = bin.charCodeAt(i);
    }
    return buf;
  }
  
  // shim for browsers that don't support it
  function readAsBinaryString(blob, callback) {
    var reader = new FileReader();
    var hasBinaryString = typeof reader.readAsBinaryString === 'function';
    reader.onloadend = function (e) {
      var result = e.target.result || '';
      if (hasBinaryString) {
        return callback(result);
      }
      callback(arrayBufferToBinaryString(result));
    };
    if (hasBinaryString) {
      reader.readAsBinaryString(blob);
    } else {
      reader.readAsArrayBuffer(blob);
    }
  }
  
  // simplified API. universal browser support is assumed
  function readAsArrayBuffer(blob, callback) {
    var reader = new FileReader();
    reader.onloadend = function (e) {
      var result = e.target.result || new ArrayBuffer(0);
      callback(result);
    };
    reader.readAsArrayBuffer(blob);
  }
  
  module.exports = {
    createBlob: createBlob,
    readAsArrayBuffer: readAsArrayBuffer,
    readAsBinaryString: readAsBinaryString,
    binaryStringToArrayBuffer: binaryStringToArrayBuffer,
    arrayBufferToBinaryString: arrayBufferToBinaryString
  };
  
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{}],72:[function(_dereq_,module,exports){
  'use strict';
  
  function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
  
  var lie = _interopDefault(_dereq_('lie'));
  
  /* istanbul ignore next */
  var PouchPromise = typeof Promise === 'function' ? Promise : lie;
  
  module.exports = PouchPromise;
  
  },{"lie":73}],73:[function(_dereq_,module,exports){
  'use strict';
  var immediate = _dereq_('immediate');
  
  /* istanbul ignore next */
  function INTERNAL() {}
  
  var handlers = {};
  
  var REJECTED = ['REJECTED'];
  var FULFILLED = ['FULFILLED'];
  var PENDING = ['PENDING'];
  
  module.exports = Promise;
  
  function Promise(resolver) {
    if (typeof resolver !== 'function') {
      throw new TypeError('resolver must be a function');
    }
    this.state = PENDING;
    this.queue = [];
    this.outcome = void 0;
    if (resolver !== INTERNAL) {
      safelyResolveThenable(this, resolver);
    }
  }
  
  Promise.prototype["catch"] = function (onRejected) {
    return this.then(null, onRejected);
  };
  Promise.prototype.then = function (onFulfilled, onRejected) {
    if (typeof onFulfilled !== 'function' && this.state === FULFILLED ||
      typeof onRejected !== 'function' && this.state === REJECTED) {
      return this;
    }
    var promise = new this.constructor(INTERNAL);
    if (this.state !== PENDING) {
      var resolver = this.state === FULFILLED ? onFulfilled : onRejected;
      unwrap(promise, resolver, this.outcome);
    } else {
      this.queue.push(new QueueItem(promise, onFulfilled, onRejected));
    }
  
    return promise;
  };
  function QueueItem(promise, onFulfilled, onRejected) {
    this.promise = promise;
    if (typeof onFulfilled === 'function') {
      this.onFulfilled = onFulfilled;
      this.callFulfilled = this.otherCallFulfilled;
    }
    if (typeof onRejected === 'function') {
      this.onRejected = onRejected;
      this.callRejected = this.otherCallRejected;
    }
  }
  QueueItem.prototype.callFulfilled = function (value) {
    handlers.resolve(this.promise, value);
  };
  QueueItem.prototype.otherCallFulfilled = function (value) {
    unwrap(this.promise, this.onFulfilled, value);
  };
  QueueItem.prototype.callRejected = function (value) {
    handlers.reject(this.promise, value);
  };
  QueueItem.prototype.otherCallRejected = function (value) {
    unwrap(this.promise, this.onRejected, value);
  };
  
  function unwrap(promise, func, value) {
    immediate(function () {
      var returnValue;
      try {
        returnValue = func(value);
      } catch (e) {
        return handlers.reject(promise, e);
      }
      if (returnValue === promise) {
        handlers.reject(promise, new TypeError('Cannot resolve promise with itself'));
      } else {
        handlers.resolve(promise, returnValue);
      }
    });
  }
  
  handlers.resolve = function (self, value) {
    var result = tryCatch(getThen, value);
    if (result.status === 'error') {
      return handlers.reject(self, result.value);
    }
    var thenable = result.value;
  
    if (thenable) {
      safelyResolveThenable(self, thenable);
    } else {
      self.state = FULFILLED;
      self.outcome = value;
      var i = -1;
      var len = self.queue.length;
      while (++i < len) {
        self.queue[i].callFulfilled(value);
      }
    }
    return self;
  };
  handlers.reject = function (self, error) {
    self.state = REJECTED;
    self.outcome = error;
    var i = -1;
    var len = self.queue.length;
    while (++i < len) {
      self.queue[i].callRejected(error);
    }
    return self;
  };
  
  function getThen(obj) {
    // Make sure we only access the accessor once as required by the spec
    var then = obj && obj.then;
    if (obj && (typeof obj === 'object' || typeof obj === 'function') && typeof then === 'function') {
      return function appyThen() {
        then.apply(obj, arguments);
      };
    }
  }
  
  function safelyResolveThenable(self, thenable) {
    // Either fulfill, reject or reject with error
    var called = false;
    function onError(value) {
      if (called) {
        return;
      }
      called = true;
      handlers.reject(self, value);
    }
  
    function onSuccess(value) {
      if (called) {
        return;
      }
      called = true;
      handlers.resolve(self, value);
    }
  
    function tryToUnwrap() {
      thenable(onSuccess, onError);
    }
  
    var result = tryCatch(tryToUnwrap);
    if (result.status === 'error') {
      onError(result.value);
    }
  }
  
  function tryCatch(func, value) {
    var out = {};
    try {
      out.value = func(value);
      out.status = 'success';
    } catch (e) {
      out.status = 'error';
      out.value = e;
    }
    return out;
  }
  
  Promise.resolve = resolve;
  function resolve(value) {
    if (value instanceof this) {
      return value;
    }
    return handlers.resolve(new this(INTERNAL), value);
  }
  
  Promise.reject = reject;
  function reject(reason) {
    var promise = new this(INTERNAL);
    return handlers.reject(promise, reason);
  }
  
  Promise.all = all;
  function all(iterable) {
    var self = this;
    if (Object.prototype.toString.call(iterable) !== '[object Array]') {
      return this.reject(new TypeError('must be an array'));
    }
  
    var len = iterable.length;
    var called = false;
    if (!len) {
      return this.resolve([]);
    }
  
    var values = new Array(len);
    var resolved = 0;
    var i = -1;
    var promise = new this(INTERNAL);
  
    while (++i < len) {
      allResolver(iterable[i], i);
    }
    return promise;
    function allResolver(value, i) {
      self.resolve(value).then(resolveFromAll, function (error) {
        if (!called) {
          called = true;
          handlers.reject(promise, error);
        }
      });
      function resolveFromAll(outValue) {
        values[i] = outValue;
        if (++resolved === len && !called) {
          called = true;
          handlers.resolve(promise, values);
        }
      }
    }
  }
  
  Promise.race = race;
  function race(iterable) {
    var self = this;
    if (Object.prototype.toString.call(iterable) !== '[object Array]') {
      return this.reject(new TypeError('must be an array'));
    }
  
    var len = iterable.length;
    var called = false;
    if (!len) {
      return this.resolve([]);
    }
  
    var i = -1;
    var promise = new this(INTERNAL);
  
    while (++i < len) {
      resolver(iterable[i]);
    }
    return promise;
    function resolver(value) {
      self.resolve(value).then(function (response) {
        if (!called) {
          called = true;
          handlers.resolve(promise, response);
        }
      }, function (error) {
        if (!called) {
          called = true;
          handlers.reject(promise, error);
        }
      });
    }
  }
  
  },{"immediate":49}],74:[function(_dereq_,module,exports){
  // shim for using process in browser
  
  var process = module.exports = {};
  var queue = [];
  var draining = false;
  
  function drainQueue() {
      if (draining) {
          return;
      }
      draining = true;
      var currentQueue;
      var len = queue.length;
      while(len) {
          currentQueue = queue;
          queue = [];
          var i = -1;
          while (++i < len) {
              currentQueue[i]();
          }
          len = queue.length;
      }
      draining = false;
  }
  process.nextTick = function (fun) {
      queue.push(fun);
      if (!draining) {
          setTimeout(drainQueue, 0);
      }
  };
  
  process.title = 'browser';
  process.browser = true;
  process.env = {};
  process.argv = [];
  process.version = ''; // empty string to avoid regexp issues
  process.versions = {};
  
  function noop() {}
  
  process.on = noop;
  process.addListener = noop;
  process.once = noop;
  process.off = noop;
  process.removeListener = noop;
  process.removeAllListeners = noop;
  process.emit = noop;
  
  process.binding = function (name) {
      throw new Error('process.binding is not supported');
  };
  
  // TODO(shtylman)
  process.cwd = function () { return '/' };
  process.chdir = function (dir) {
      throw new Error('process.chdir is not supported');
  };
  process.umask = function() { return 0; };
  
  },{}],75:[function(_dereq_,module,exports){
  (function (global){
  /*! https://mths.be/wtf8 v1.0.0 by @mathias */
  ;(function(root) {
  
  	// Detect free variables `exports`
  	var freeExports = typeof exports == 'object' && exports;
  
  	// Detect free variable `module`
  	var freeModule = typeof module == 'object' && module &&
  		module.exports == freeExports && module;
  
  	// Detect free variable `global`, from Node.js or Browserified code,
  	// and use it as `root`
  	var freeGlobal = typeof global == 'object' && global;
  	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
  		root = freeGlobal;
  	}
  
  	/*--------------------------------------------------------------------------*/
  
  	var stringFromCharCode = String.fromCharCode;
  
  	// Taken from https://mths.be/punycode
  	function ucs2decode(string) {
  		var output = [];
  		var counter = 0;
  		var length = string.length;
  		var value;
  		var extra;
  		while (counter < length) {
  			value = string.charCodeAt(counter++);
  			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
  				// high surrogate, and there is a next character
  				extra = string.charCodeAt(counter++);
  				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
  					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
  				} else {
  					// unmatched surrogate; only append this code unit, in case the next
  					// code unit is the high surrogate of a surrogate pair
  					output.push(value);
  					counter--;
  				}
  			} else {
  				output.push(value);
  			}
  		}
  		return output;
  	}
  
  	// Taken from https://mths.be/punycode
  	function ucs2encode(array) {
  		var length = array.length;
  		var index = -1;
  		var value;
  		var output = '';
  		while (++index < length) {
  			value = array[index];
  			if (value > 0xFFFF) {
  				value -= 0x10000;
  				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
  				value = 0xDC00 | value & 0x3FF;
  			}
  			output += stringFromCharCode(value);
  		}
  		return output;
  	}
  
  	/*--------------------------------------------------------------------------*/
  
  	function createByte(codePoint, shift) {
  		return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
  	}
  
  	function encodeCodePoint(codePoint) {
  		if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
  			return stringFromCharCode(codePoint);
  		}
  		var symbol = '';
  		if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
  			symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
  		}
  		else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
  			symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
  			symbol += createByte(codePoint, 6);
  		}
  		else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
  			symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
  			symbol += createByte(codePoint, 12);
  			symbol += createByte(codePoint, 6);
  		}
  		symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
  		return symbol;
  	}
  
  	function wtf8encode(string) {
  		var codePoints = ucs2decode(string);
  		var length = codePoints.length;
  		var index = -1;
  		var codePoint;
  		var byteString = '';
  		while (++index < length) {
  			codePoint = codePoints[index];
  			byteString += encodeCodePoint(codePoint);
  		}
  		return byteString;
  	}
  
  	/*--------------------------------------------------------------------------*/
  
  	function readContinuationByte() {
  		if (byteIndex >= byteCount) {
  			throw Error('Invalid byte index');
  		}
  
  		var continuationByte = byteArray[byteIndex] & 0xFF;
  		byteIndex++;
  
  		if ((continuationByte & 0xC0) == 0x80) {
  			return continuationByte & 0x3F;
  		}
  
  		// If we end up here, it’s not a continuation byte.
  		throw Error('Invalid continuation byte');
  	}
  
  	function decodeSymbol() {
  		var byte1;
  		var byte2;
  		var byte3;
  		var byte4;
  		var codePoint;
  
  		if (byteIndex > byteCount) {
  			throw Error('Invalid byte index');
  		}
  
  		if (byteIndex == byteCount) {
  			return false;
  		}
  
  		// Read the first byte.
  		byte1 = byteArray[byteIndex] & 0xFF;
  		byteIndex++;
  
  		// 1-byte sequence (no continuation bytes)
  		if ((byte1 & 0x80) == 0) {
  			return byte1;
  		}
  
  		// 2-byte sequence
  		if ((byte1 & 0xE0) == 0xC0) {
  			var byte2 = readContinuationByte();
  			codePoint = ((byte1 & 0x1F) << 6) | byte2;
  			if (codePoint >= 0x80) {
  				return codePoint;
  			} else {
  				throw Error('Invalid continuation byte');
  			}
  		}
  
  		// 3-byte sequence (may include unpaired surrogates)
  		if ((byte1 & 0xF0) == 0xE0) {
  			byte2 = readContinuationByte();
  			byte3 = readContinuationByte();
  			codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
  			if (codePoint >= 0x0800) {
  				return codePoint;
  			} else {
  				throw Error('Invalid continuation byte');
  			}
  		}
  
  		// 4-byte sequence
  		if ((byte1 & 0xF8) == 0xF0) {
  			byte2 = readContinuationByte();
  			byte3 = readContinuationByte();
  			byte4 = readContinuationByte();
  			codePoint = ((byte1 & 0x0F) << 0x12) | (byte2 << 0x0C) |
  				(byte3 << 0x06) | byte4;
  			if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
  				return codePoint;
  			}
  		}
  
  		throw Error('Invalid WTF-8 detected');
  	}
  
  	var byteArray;
  	var byteCount;
  	var byteIndex;
  	function wtf8decode(byteString) {
  		byteArray = ucs2decode(byteString);
  		byteCount = byteArray.length;
  		byteIndex = 0;
  		var codePoints = [];
  		var tmp;
  		while ((tmp = decodeSymbol()) !== false) {
  			codePoints.push(tmp);
  		}
  		return ucs2encode(codePoints);
  	}
  
  	/*--------------------------------------------------------------------------*/
  
  	var wtf8 = {
  		'version': '1.0.0',
  		'encode': wtf8encode,
  		'decode': wtf8decode
  	};
  
  	// Some AMD build optimizers, like r.js, check for specific condition patterns
  	// like the following:
  	if (
  		typeof define == 'function' &&
  		typeof define.amd == 'object' &&
  		define.amd
  	) {
  		define(function() {
  			return wtf8;
  		});
  	}	else if (freeExports && !freeExports.nodeType) {
  		if (freeModule) { // in Node.js or RingoJS v0.8.0+
  			freeModule.exports = wtf8;
  		} else { // in Narwhal or RingoJS v0.7.0-
  			var object = {};
  			var hasOwnProperty = object.hasOwnProperty;
  			for (var key in wtf8) {
  				hasOwnProperty.call(wtf8, key) && (freeExports[key] = wtf8[key]);
  			}
  		}
  	} else { // in Rhino or a web browser
  		root.wtf8 = wtf8;
  	}
  
  }(this));
  
  }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
  },{}],76:[function(_dereq_,module,exports){
  'use strict';
  
  var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')
    , length = 64
    , map = {}
    , seed = 0
    , i = 0
    , prev;
  
  /**
   * Return a string representing the specified number.
   *
   * @param {Number} num The number to convert.
   * @returns {String} The string representation of the number.
   * @api public
   */
  function encode(num) {
    var encoded = '';
  
    do {
      encoded = alphabet[num % length] + encoded;
      num = Math.floor(num / length);
    } while (num > 0);
  
    return encoded;
  }
  
  /**
   * Return the integer value specified by the given string.
   *
   * @param {String} str The string to convert.
   * @returns {Number} The integer value represented by the string.
   * @api public
   */
  function decode(str) {
    var decoded = 0;
  
    for (i = 0; i < str.length; i++) {
      decoded = decoded * length + map[str.charAt(i)];
    }
  
    return decoded;
  }
  
  /**
   * Yeast: A tiny growing id generator.
   *
   * @returns {String} A unique id.
   * @api public
   */
  function yeast() {
    var now = encode(+new Date());
  
    if (now !== prev) return seed = 0, prev = now;
    return now +'.'+ encode(seed++);
  }
  
  //
  // Map each character to its index.
  //
  for (; i < length; i++) map[alphabet[i]] = i;
  
  //
  // Expose the `yeast`, `encode` and `decode` functions.
  //
  yeast.encode = encode;
  yeast.decode = decode;
  module.exports = yeast;
  
  },{}]},{},[1])(1)
  });
  