text: /*!
   * React Popper 0.7.2
   * https://github.com/souporserious/react-popper
   * Copyright (c) 2017 React Popper Authors
   */
  (function webpackUniversalModuleDefinition(root, factory) {
  	if(typeof exports === 'object' && typeof module === 'object')
  		module.exports = factory(require("react"), require("prop-types"));
  	else if(typeof define === 'function' && define.amd)
  		define(["react", "prop-types"], factory);
  	else if(typeof exports === 'object')
  		exports["ReactPopper"] = factory(require("react"), require("prop-types"));
  	else
  		root["ReactPopper"] = factory(root["React"], root["PropTypes"]);
  })(this, function(__WEBPACK_EXTERNAL_MODULE_2__, __WEBPACK_EXTERNAL_MODULE_3__) {
  return /******/ (function(modules) { // webpackBootstrap
  /******/ 	// The module cache
  /******/ 	var installedModules = {};
  
  /******/ 	// The require function
  /******/ 	function __webpack_require__(moduleId) {
  
  /******/ 		// Check if module is in cache
  /******/ 		if(installedModules[moduleId])
  /******/ 			return installedModules[moduleId].exports;
  
  /******/ 		// Create a new module (and put it into the cache)
  /******/ 		var module = installedModules[moduleId] = {
  /******/ 			exports: {},
  /******/ 			id: moduleId,
  /******/ 			loaded: false
  /******/ 		};
  
  /******/ 		// Execute the module function
  /******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
  
  /******/ 		// Flag the module as loaded
  /******/ 		module.loaded = true;
  
  /******/ 		// Return the exports of the module
  /******/ 		return module.exports;
  /******/ 	}
  
  
  /******/ 	// expose the modules object (__webpack_modules__)
  /******/ 	__webpack_require__.m = modules;
  
  /******/ 	// expose the module cache
  /******/ 	__webpack_require__.c = installedModules;
  
  /******/ 	// __webpack_public_path__
  /******/ 	__webpack_require__.p = "dist/";
  
  /******/ 	// Load entry module and return exports
  /******/ 	return __webpack_require__(0);
  /******/ })
  /************************************************************************/
  /******/ ([
  /* 0 */
  /***/ (function(module, exports, __webpack_require__) {
  
  	'use strict';
  
  	Object.defineProperty(exports, "__esModule", {
  	  value: true
  	});
  	exports.Arrow = exports.Popper = exports.Target = exports.Manager = undefined;
  
  	var _Manager2 = __webpack_require__(1);
  
  	var _Manager3 = _interopRequireDefault(_Manager2);
  
  	var _Target2 = __webpack_require__(4);
  
  	var _Target3 = _interopRequireDefault(_Target2);
  
  	var _Popper2 = __webpack_require__(5);
  
  	var _Popper3 = _interopRequireDefault(_Popper2);
  
  	var _Arrow2 = __webpack_require__(9);
  
  	var _Arrow3 = _interopRequireDefault(_Arrow2);
  
  	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  	exports.Manager = _Manager3.default;
  	exports.Target = _Target3.default;
  	exports.Popper = _Popper3.default;
  	exports.Arrow = _Arrow3.default;
  
  /***/ }),
  /* 1 */
  /***/ (function(module, exports, __webpack_require__) {
  
  	'use strict';
  
  	Object.defineProperty(exports, "__esModule", {
  	  value: true
  	});
  
  	var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
  
  	var _react = __webpack_require__(2);
  
  	var _react2 = _interopRequireDefault(_react);
  
  	var _propTypes = __webpack_require__(3);
  
  	var _propTypes2 = _interopRequireDefault(_propTypes);
  
  	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  	function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }
  
  	function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  	function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
  
  	function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
  
  	var Manager = function (_Component) {
  	  _inherits(Manager, _Component);
  
  	  function Manager() {
  	    var _ref;
  
  	    var _temp, _this, _ret;
  
  	    _classCallCheck(this, Manager);
  
  	    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
  	      args[_key] = arguments[_key];
  	    }
  
  	    return _ret = (_temp = (_this = _possibleConstructorReturn(this, (_ref = Manager.__proto__ || Object.getPrototypeOf(Manager)).call.apply(_ref, [this].concat(args))), _this), _this._setTargetNode = function (node) {
  	      _this._targetNode = node;
  	    }, _this._getTargetNode = function () {
  	      return _this._targetNode;
  	    }, _temp), _possibleConstructorReturn(_this, _ret);
  	  }
  
  	  _createClass(Manager, [{
  	    key: 'getChildContext',
  	    value: function getChildContext() {
  	      return {
  	        popperManager: {
  	          setTargetNode: this._setTargetNode,
  	          getTargetNode: this._getTargetNode
  	        }
  	      };
  	    }
  	  }, {
  	    key: 'render',
  	    value: function render() {
  	      var _props = this.props,
  	          tag = _props.tag,
  	          children = _props.children,
  	          restProps = _objectWithoutProperties(_props, ['tag', 'children']);
  
  	      if (tag !== false) {
  	        return (0, _react.createElement)(tag, restProps, children);
  	      } else {
  	        return children;
  	      }
  	    }
  	  }]);
  
  	  return Manager;
  	}(_react.Component);
  
  	Manager.childContextTypes = {
  	  popperManager: _propTypes2.default.object.isRequired
  	};
  	Manager.propTypes = {
  	  tag: _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.bool])
  	};
  	Manager.defaultProps = {
  	  tag: 'div'
  	};
  	exports.default = Manager;
  
  /***/ }),
  /* 2 */
  /***/ (function(module, exports) {
  
  	module.exports = __WEBPACK_EXTERNAL_MODULE_2__;
  
  /***/ }),
  /* 3 */
  /***/ (function(module, exports) {
  
  	module.exports = __WEBPACK_EXTERNAL_MODULE_3__;
  
  /***/ }),
  /* 4 */
  /***/ (function(module, exports, __webpack_require__) {
  
  	'use strict';
  
  	Object.defineProperty(exports, "__esModule", {
  	  value: true
  	});
  
  	var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
  
  	var _react = __webpack_require__(2);
  
  	var _react2 = _interopRequireDefault(_react);
  
  	var _propTypes = __webpack_require__(3);
  
  	var _propTypes2 = _interopRequireDefault(_propTypes);
  
  	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  	function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }
  
  	var Target = function Target(props, context) {
  	  var _props$component = props.component,
  	      component = _props$component === undefined ? 'div' : _props$component,
  	      innerRef = props.innerRef,
  	      children = props.children,
  	      restProps = _objectWithoutProperties(props, ['component', 'innerRef', 'children']);
  
  	  var popperManager = context.popperManager;
  
  	  var targetRef = function targetRef(node) {
  	    popperManager.setTargetNode(node);
  	    if (typeof innerRef === 'function') {
  	      innerRef(node);
  	    }
  	  };
  
  	  if (typeof children === 'function') {
  	    var targetProps = { ref: targetRef };
  	    return children({ targetProps: targetProps, restProps: restProps });
  	  }
  
  	  var componentProps = _extends({}, restProps);
  
  	  if (typeof component === 'string') {
  	    componentProps.ref = targetRef;
  	  } else {
  	    componentProps.innerRef = targetRef;
  	  }
  
  	  return (0, _react.createElement)(component, componentProps, children);
  	};
  
  	Target.contextTypes = {
  	  popperManager: _propTypes2.default.object.isRequired
  	};
  
  	Target.propTypes = {
  	  component: _propTypes2.default.oneOfType([_propTypes2.default.node, _propTypes2.default.func]),
  	  innerRef: _propTypes2.default.func,
  	  children: _propTypes2.default.oneOfType([_propTypes2.default.node, _propTypes2.default.func])
  	};
  
  	exports.default = Target;
  
  /***/ }),
  /* 5 */
  /***/ (function(module, exports, __webpack_require__) {
  
  	'use strict';
  
  	Object.defineProperty(exports, "__esModule", {
  	  value: true
  	});
  
  	var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
  
  	var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
  
  	var _react = __webpack_require__(2);
  
  	var _react2 = _interopRequireDefault(_react);
  
  	var _propTypes = __webpack_require__(3);
  
  	var _propTypes2 = _interopRequireDefault(_propTypes);
  
  	var _popper = __webpack_require__(6);
  
  	var _popper2 = _interopRequireDefault(_popper);
  
  	var _isEqualShallow = __webpack_require__(7);
  
  	var _isEqualShallow2 = _interopRequireDefault(_isEqualShallow);
  
  	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  	function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
  
  	function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }
  
  	function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  
  	function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
  
  	function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
  
  	var noop = function noop() {
  	  return null;
  	};
  
  	var Popper = function (_Component) {
  	  _inherits(Popper, _Component);
  
  	  function Popper() {
  	    var _ref;
  
  	    var _temp, _this, _ret;
  
  	    _classCallCheck(this, Popper);
  
  	    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
  	      args[_key] = arguments[_key];
  	    }
  
  	    return _ret = (_temp = (_this = _possibleConstructorReturn(this, (_ref = Popper.__proto__ || Object.getPrototypeOf(Popper)).call.apply(_ref, [this].concat(args))), _this), _this.state = {}, _this._setArrowNode = function (node) {
  	      _this._arrowNode = node;
  	    }, _this._getTargetNode = function () {
  	      return _this.context.popperManager.getTargetNode();
  	    }, _this._updateStateModifier = {
  	      enabled: true,
  	      order: 900,
  	      fn: function fn(data) {
  	        if (_this.state.data && !(0, _isEqualShallow2.default)(data.offsets, _this.state.data.offsets) || !_this.state.data) {
  	          _this.setState({ data: data });
  	        }
  	        return data;
  	      }
  	    }, _this._getPopperStyle = function () {
  	      var data = _this.state.data;
  
  	      // If Popper isn't instantiated, hide the popperElement
  	      // to avoid flash of unstyled content
  
  	      if (!_this._popper || !data) {
  	        return {
  	          position: 'absolute',
  	          pointerEvents: 'none',
  	          opacity: 0
  	        };
  	      }
  
  	      var _data$offsets$popper = data.offsets.popper,
  	          top = _data$offsets$popper.top,
  	          left = _data$offsets$popper.left,
  	          position = _data$offsets$popper.position;
  
  
  	      return _extends({
  	        position: position
  	      }, data.styles);
  	    }, _this._getPopperPlacement = function () {
  	      return !!_this.state.data ? _this.state.data.placement : undefined;
  	    }, _this._getArrowStyle = function () {
  	      if (!_this.state.data || !_this.state.data.offsets.arrow) {
  	        return {};
  	      } else {
  	        var _this$state$data$offs = _this.state.data.offsets.arrow,
  	            top = _this$state$data$offs.top,
  	            left = _this$state$data$offs.left;
  
  	        return { top: top, left: left };
  	      }
  	    }, _temp), _possibleConstructorReturn(_this, _ret);
  	  }
  
  	  _createClass(Popper, [{
  	    key: 'getChildContext',
  	    value: function getChildContext() {
  	      return {
  	        popper: {
  	          setArrowNode: this._setArrowNode,
  	          getArrowStyle: this._getArrowStyle
  	        }
  	      };
  	    }
  	  }, {
  	    key: 'componentDidMount',
  	    value: function componentDidMount() {
  	      this._updatePopper();
  	    }
  	  }, {
  	    key: 'componentDidUpdate',
  	    value: function componentDidUpdate(lastProps) {
  	      if (lastProps.placement !== this.props.placement || lastProps.eventsEnabled !== this.props.eventsEnabled) {
  	        this._updatePopper();
  	      }
  
  	      if (this._popper && lastProps.children !== this.props.children) {
  	        this._popper.scheduleUpdate();
  	      }
  	    }
  	  }, {
  	    key: 'componentWillUnmount',
  	    value: function componentWillUnmount() {
  	      this._destroyPopper();
  	    }
  	  }, {
  	    key: '_updatePopper',
  	    value: function _updatePopper() {
  	      this._destroyPopper();
  	      if (this._node) {
  	        this._createPopper();
  	      }
  	    }
  	  }, {
  	    key: '_createPopper',
  	    value: function _createPopper() {
  	      var _props = this.props,
  	          placement = _props.placement,
  	          eventsEnabled = _props.eventsEnabled;
  
  	      var modifiers = _extends({}, this.props.modifiers, {
  	        applyStyle: { enabled: false },
  	        updateState: this._updateStateModifier
  	      });
  
  	      if (this._arrowNode) {
  	        modifiers.arrow = {
  	          element: this._arrowNode
  	        };
  	      }
  
  	      this._popper = new _popper2.default(this._getTargetNode(), this._node, {
  	        placement: placement,
  	        eventsEnabled: eventsEnabled,
  	        modifiers: modifiers
  	      });
  
  	      // schedule an update to make sure everything gets positioned correct
  	      // after being instantiated
  	      this._popper.scheduleUpdate();
  	    }
  	  }, {
  	    key: '_destroyPopper',
  	    value: function _destroyPopper() {
  	      if (this._popper) {
  	        this._popper.destroy();
  	      }
  	    }
  	  }, {
  	    key: 'render',
  	    value: function render() {
  	      var _this2 = this;
  
  	      var _props2 = this.props,
  	          component = _props2.component,
  	          innerRef = _props2.innerRef,
  	          placement = _props2.placement,
  	          eventsEnabled = _props2.eventsEnabled,
  	          modifiers = _props2.modifiers,
  	          children = _props2.children,
  	          restProps = _objectWithoutProperties(_props2, ['component', 'innerRef', 'placement', 'eventsEnabled', 'modifiers', 'children']);
  
  	      var popperRef = function popperRef(node) {
  	        _this2._node = node;
  	        if (typeof innerRef === 'function') {
  	          innerRef(node);
  	        }
  	      };
  	      var popperStyle = this._getPopperStyle();
  	      var popperPlacement = this._getPopperPlacement();
  
  	      if (typeof children === 'function') {
  	        var popperProps = _defineProperty({
  	          ref: popperRef,
  	          style: popperStyle
  	        }, 'data-placement', popperPlacement);
  	        return children({
  	          popperProps: popperProps,
  	          restProps: restProps,
  	          scheduleUpdate: this._popper && this._popper.scheduleUpdate
  	        });
  	      }
  
  	      var componentProps = _extends({}, restProps, {
  	        style: _extends({}, restProps.style, popperStyle),
  	        'data-placement': popperPlacement
  	      });
  
  	      if (typeof component === 'string') {
  	        componentProps.ref = popperRef;
  	      } else {
  	        componentProps.innerRef = popperRef;
  	      }
  
  	      return (0, _react.createElement)(component, componentProps, children);
  	    }
  	  }]);
  
  	  return Popper;
  	}(_react.Component);
  
  	Popper.contextTypes = {
  	  popperManager: _propTypes2.default.object.isRequired
  	};
  	Popper.childContextTypes = {
  	  popper: _propTypes2.default.object.isRequired
  	};
  	Popper.propTypes = {
  	  component: _propTypes2.default.oneOfType([_propTypes2.default.node, _propTypes2.default.func]),
  	  innerRef: _propTypes2.default.func,
  	  placement: _propTypes2.default.oneOf(_popper2.default.placements),
  	  eventsEnabled: _propTypes2.default.bool,
  	  modifiers: _propTypes2.default.object,
  	  children: _propTypes2.default.oneOfType([_propTypes2.default.node, _propTypes2.default.func])
  	};
  	Popper.defaultProps = {
  	  component: 'div',
  	  placement: 'bottom',
  	  eventsEnabled: true,
  	  modifiers: {}
  	};
  	exports.default = Popper;
  
  /***/ }),
  /* 6 */
  /***/ (function(module, exports, __webpack_require__) {
  
  	var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;/* WEBPACK VAR INJECTION */(function(global) {'use strict';
  
  	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
  
  	/**!
  	 * @fileOverview Kickass library to create and place poppers near their reference elements.
  	 * @version 1.10.8
  	 * @license
  	 * Copyright (c) 2016 Federico Zivolo and contributors
  	 *
  	 * Permission is hereby granted, free of charge, to any person obtaining a copy
  	 * of this software and associated documentation files (the "Software"), to deal
  	 * in the Software without restriction, including without limitation the rights
  	 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  	 * copies of the Software, and to permit persons to whom the Software is
  	 * furnished to do so, subject to the following conditions:
  	 *
  	 * The above copyright notice and this permission notice shall be included in all
  	 * copies or substantial portions of the Software.
  	 *
  	 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  	 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  	 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  	 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  	 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  	 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  	 * SOFTWARE.
  	 */
  	(function (global, factory) {
  	  ( false ? 'undefined' : _typeof(exports)) === 'object' && typeof module !== 'undefined' ? module.exports = factory() :  true ? !(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory), __WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ? (__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) : __WEBPACK_AMD_DEFINE_FACTORY__), __WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)) : global.Popper = factory();
  	})(undefined, function () {
  	  'use strict';
  
  	  var nativeHints = ['native code', '[object MutationObserverConstructor]'];
  
  	  /**
  	   * Determine if a function is implemented natively (as opposed to a polyfill).
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Function | undefined} fn the function to check
  	   * @returns {Boolean}
  	   */
  	  var isNative = function isNative(fn) {
  	    return nativeHints.some(function (hint) {
  	      return (fn || '').toString().indexOf(hint) > -1;
  	    });
  	  };
  
  	  var isBrowser = typeof window !== 'undefined';
  	  var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];
  	  var timeoutDuration = 0;
  	  for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) {
  	    if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {
  	      timeoutDuration = 1;
  	      break;
  	    }
  	  }
  
  	  function microtaskDebounce(fn) {
  	    var scheduled = false;
  	    var i = 0;
  	    var elem = document.createElement('span');
  
  	    // MutationObserver provides a mechanism for scheduling microtasks, which
  	    // are scheduled *before* the next task. This gives us a way to debounce
  	    // a function but ensure it's called *before* the next paint.
  	    var observer = new MutationObserver(function () {
  	      fn();
  	      scheduled = false;
  	    });
  
  	    observer.observe(elem, { attributes: true });
  
  	    return function () {
  	      if (!scheduled) {
  	        scheduled = true;
  	        elem.setAttribute('x-index', i);
  	        i = i + 1; // don't use compund (+=) because it doesn't get optimized in V8
  	      }
  	    };
  	  }
  
  	  function taskDebounce(fn) {
  	    var scheduled = false;
  	    return function () {
  	      if (!scheduled) {
  	        scheduled = true;
  	        setTimeout(function () {
  	          scheduled = false;
  	          fn();
  	        }, timeoutDuration);
  	      }
  	    };
  	  }
  
  	  // It's common for MutationObserver polyfills to be seen in the wild, however
  	  // these rely on Mutation Events which only occur when an element is connected
  	  // to the DOM. The algorithm used in this module does not use a connected element,
  	  // and so we must ensure that a *native* MutationObserver is available.
  	  var supportsNativeMutationObserver = isBrowser && isNative(window.MutationObserver);
  
  	  /**
  	  * Create a debounced version of a method, that's asynchronously deferred
  	  * but called in the minimum time possible.
  	  *
  	  * @method
  	  * @memberof Popper.Utils
  	  * @argument {Function} fn
  	  * @returns {Function}
  	  */
  	  var debounce = supportsNativeMutationObserver ? microtaskDebounce : taskDebounce;
  
  	  /**
  	   * Check if the given variable is a function
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Any} functionToCheck - variable to check
  	   * @returns {Boolean} answer to: is a function?
  	   */
  	  function isFunction(functionToCheck) {
  	    var getType = {};
  	    return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
  	  }
  
  	  /**
  	   * Get CSS computed property of the given element
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Eement} element
  	   * @argument {String} property
  	   */
  	  function getStyleComputedProperty(element, property) {
  	    if (element.nodeType !== 1) {
  	      return [];
  	    }
  	    // NOTE: 1 DOM access here
  	    var css = window.getComputedStyle(element, null);
  	    return property ? css[property] : css;
  	  }
  
  	  /**
  	   * Returns the parentNode or the host of the element
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Element} element
  	   * @returns {Element} parent
  	   */
  	  function getParentNode(element) {
  	    if (element.nodeName === 'HTML') {
  	      return element;
  	    }
  	    return element.parentNode || element.host;
  	  }
  
  	  /**
  	   * Returns the scrolling parent of the given element
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Element} element
  	   * @returns {Element} scroll parent
  	   */
  	  function getScrollParent(element) {
  	    // Return body, `getScroll` will take care to get the correct `scrollTop` from it
  	    if (!element || ['HTML', 'BODY', '#document'].indexOf(element.nodeName) !== -1) {
  	      return window.document.body;
  	    }
  
  	    // Firefox want us to check `-x` and `-y` variations as well
  
  	    var _getStyleComputedProp = getStyleComputedProperty(element),
  	        overflow = _getStyleComputedProp.overflow,
  	        overflowX = _getStyleComputedProp.overflowX,
  	        overflowY = _getStyleComputedProp.overflowY;
  
  	    if (/(auto|scroll)/.test(overflow + overflowY + overflowX)) {
  	      return element;
  	    }
  
  	    return getScrollParent(getParentNode(element));
  	  }
  
  	  function isOffsetContainer(element) {
  	    var nodeName = element.nodeName;
  
  	    if (nodeName === 'BODY') {
  	      return false;
  	    }
  	    return nodeName === 'HTML' || element.firstElementChild.offsetParent === element;
  	  }
  
  	  /**
  	   * Finds the root node (document, shadowDOM root) of the given element
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Element} node
  	   * @returns {Element} root node
  	   */
  	  function getRoot(node) {
  	    if (node.parentNode !== null) {
  	      return getRoot(node.parentNode);
  	    }
  
  	    return node;
  	  }
  
  	  /**
  	   * Returns the offset parent of the given element
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Element} element
  	   * @returns {Element} offset parent
  	   */
  	  function getOffsetParent(element) {
  	    // NOTE: 1 DOM access here
  	    var offsetParent = element && element.offsetParent;
  	    var nodeName = offsetParent && offsetParent.nodeName;
  
  	    if (!nodeName || nodeName === 'BODY' || nodeName === 'HTML') {
  	      return window.document.documentElement;
  	    }
  
  	    return offsetParent;
  	  }
  
  	  /**
  	   * Finds the offset parent common to the two provided nodes
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Element} element1
  	   * @argument {Element} element2
  	   * @returns {Element} common offset parent
  	   */
  	  function findCommonOffsetParent(element1, element2) {
  	    // This check is needed to avoid errors in case one of the elements isn't defined for any reason
  	    if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {
  	      return window.document.documentElement;
  	    }
  
  	    // Here we make sure to give as "start" the element that comes first in the DOM
  	    var order = element1.compareDocumentPosition(element2) & Node.DOCUMENT_POSITION_FOLLOWING;
  	    var start = order ? element1 : element2;
  	    var end = order ? element2 : element1;
  
  	    // Get common ancestor container
  	    var range = document.createRange();
  	    range.setStart(start, 0);
  	    range.setEnd(end, 0);
  	    var commonAncestorContainer = range.commonAncestorContainer;
  
  	    // Both nodes are inside #document
  
  	    if (element1 !== commonAncestorContainer && element2 !== commonAncestorContainer || start.contains(end)) {
  	      if (isOffsetContainer(commonAncestorContainer)) {
  	        return commonAncestorContainer;
  	      }
  
  	      return getOffsetParent(commonAncestorContainer);
  	    }
  
  	    // one of the nodes is inside shadowDOM, find which one
  	    var element1root = getRoot(element1);
  	    if (element1root.host) {
  	      return findCommonOffsetParent(element1root.host, element2);
  	    } else {
  	      return findCommonOffsetParent(element1, getRoot(element2).host);
  	    }
  	  }
  
  	  /**
  	   * Gets the scroll value of the given element in the given side (top and left)
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Element} element
  	   * @argument {String} side `top` or `left`
  	   * @returns {number} amount of scrolled pixels
  	   */
  	  function getScroll(element) {
  	    var side = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'top';
  
  	    var upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft';
  	    var nodeName = element.nodeName;
  
  	    if (nodeName === 'BODY' || nodeName === 'HTML') {
  	      var html = window.document.documentElement;
  	      var scrollingElement = window.document.scrollingElement || html;
  	      return scrollingElement[upperSide];
  	    }
  
  	    return element[upperSide];
  	  }
  
  	  /*
  	   * Sum or subtract the element scroll values (left and top) from a given rect object
  	   * @method
  	   * @memberof Popper.Utils
  	   * @param {Object} rect - Rect object you want to change
  	   * @param {HTMLElement} element - The element from the function reads the scroll values
  	   * @param {Boolean} subtract - set to true if you want to subtract the scroll values
  	   * @return {Object} rect - The modifier rect object
  	   */
  	  function includeScroll(rect, element) {
  	    var subtract = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  
  	    var scrollTop = getScroll(element, 'top');
  	    var scrollLeft = getScroll(element, 'left');
  	    var modifier = subtract ? -1 : 1;
  	    rect.top += scrollTop * modifier;
  	    rect.bottom += scrollTop * modifier;
  	    rect.left += scrollLeft * modifier;
  	    rect.right += scrollLeft * modifier;
  	    return rect;
  	  }
  
  	  /*
  	   * Helper to detect borders of a given element
  	   * @method
  	   * @memberof Popper.Utils
  	   * @param {CSSStyleDeclaration} styles
  	   * Result of `getStyleComputedProperty` on the given element
  	   * @param {String} axis - `x` or `y`
  	   * @return {number} borders - The borders size of the given axis
  	   */
  
  	  function getBordersSize(styles, axis) {
  	    var sideA = axis === 'x' ? 'Left' : 'Top';
  	    var sideB = sideA === 'Left' ? 'Right' : 'Bottom';
  
  	    return +styles['border' + sideA + 'Width'].split('px')[0] + +styles['border' + sideB + 'Width'].split('px')[0];
  	  }
  
  	  /**
  	   * Tells if you are running Internet Explorer 10
  	   * @method
  	   * @memberof Popper.Utils
  	   * @returns {Boolean} isIE10
  	   */
  	  var isIE10 = undefined;
  
  	  var isIE10$1 = function isIE10$1() {
  	    if (isIE10 === undefined) {
  	      isIE10 = navigator.appVersion.indexOf('MSIE 10') !== -1;
  	    }
  	    return isIE10;
  	  };
  
  	  function getSize(axis, body, html, computedStyle) {
  	    return Math.max(body['offset' + axis], html['client' + axis], html['offset' + axis], isIE10$1() ? html['offset' + axis] + computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')] + computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')] : 0);
  	  }
  
  	  function getWindowSizes() {
  	    var body = window.document.body;
  	    var html = window.document.documentElement;
  	    var computedStyle = isIE10$1() && window.getComputedStyle(html);
  
  	    return {
  	      height: getSize('Height', body, html, computedStyle),
  	      width: getSize('Width', body, html, computedStyle)
  	    };
  	  }
  
  	  var classCallCheck = function classCallCheck(instance, Constructor) {
  	    if (!(instance instanceof Constructor)) {
  	      throw new TypeError("Cannot call a class as a function");
  	    }
  	  };
  
  	  var createClass = function () {
  	    function defineProperties(target, props) {
  	      for (var i = 0; i < props.length; i++) {
  	        var descriptor = props[i];
  	        descriptor.enumerable = descriptor.enumerable || false;
  	        descriptor.configurable = true;
  	        if ("value" in descriptor) descriptor.writable = true;
  	        Object.defineProperty(target, descriptor.key, descriptor);
  	      }
  	    }
  
  	    return function (Constructor, protoProps, staticProps) {
  	      if (protoProps) defineProperties(Constructor.prototype, protoProps);
  	      if (staticProps) defineProperties(Constructor, staticProps);
  	      return Constructor;
  	    };
  	  }();
  
  	  var defineProperty = function defineProperty(obj, key, value) {
  	    if (key in obj) {
  	      Object.defineProperty(obj, key, {
  	        value: value,
  	        enumerable: true,
  	        configurable: true,
  	        writable: true
  	      });
  	    } else {
  	      obj[key] = value;
  	    }
  
  	    return obj;
  	  };
  
  	  var _extends = Object.assign || function (target) {
  	    for (var i = 1; i < arguments.length; i++) {
  	      var source = arguments[i];
  
  	      for (var key in source) {
  	        if (Object.prototype.hasOwnProperty.call(source, key)) {
  	          target[key] = source[key];
  	        }
  	      }
  	    }
  
  	    return target;
  	  };
  
  	  /**
  	   * Given element offsets, generate an output similar to getBoundingClientRect
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Object} offsets
  	   * @returns {Object} ClientRect like output
  	   */
  	  function getClientRect(offsets) {
  	    return _extends({}, offsets, {
  	      right: offsets.left + offsets.width,
  	      bottom: offsets.top + offsets.height
  	    });
  	  }
  
  	  /**
  	   * Get bounding client rect of given element
  	   * @method
  	   * @memberof Popper.Utils
  	   * @param {HTMLElement} element
  	   * @return {Object} client rect
  	   */
  	  function getBoundingClientRect(element) {
  	    var rect = {};
  
  	    // IE10 10 FIX: Please, don't ask, the element isn't
  	    // considered in DOM in some circumstances...
  	    // This isn't reproducible in IE10 compatibility mode of IE11
  	    if (isIE10$1()) {
  	      try {
  	        rect = element.getBoundingClientRect();
  	        var scrollTop = getScroll(element, 'top');
  	        var scrollLeft = getScroll(element, 'left');
  	        rect.top += scrollTop;
  	        rect.left += scrollLeft;
  	        rect.bottom += scrollTop;
  	        rect.right += scrollLeft;
  	      } catch (err) {}
  	    } else {
  	      rect = element.getBoundingClientRect();
  	    }
  
  	    var result = {
  	      left: rect.left,
  	      top: rect.top,
  	      width: rect.right - rect.left,
  	      height: rect.bottom - rect.top
  	    };
  
  	    // subtract scrollbar size from sizes
  	    var sizes = element.nodeName === 'HTML' ? getWindowSizes() : {};
  	    var width = sizes.width || element.clientWidth || result.right - result.left;
  	    var height = sizes.height || element.clientHeight || result.bottom - result.top;
  
  	    var horizScrollbar = element.offsetWidth - width;
  	    var vertScrollbar = element.offsetHeight - height;
  
  	    // if an hypothetical scrollbar is detected, we must be sure it's not a `border`
  	    // we make this check conditional for performance reasons
  	    if (horizScrollbar || vertScrollbar) {
  	      var styles = getStyleComputedProperty(element);
  	      horizScrollbar -= getBordersSize(styles, 'x');
  	      vertScrollbar -= getBordersSize(styles, 'y');
  
  	      result.width -= horizScrollbar;
  	      result.height -= vertScrollbar;
  	    }
  
  	    return getClientRect(result);
  	  }
  
  	  function getOffsetRectRelativeToArbitraryNode(children, parent) {
  	    var isIE10 = isIE10$1();
  	    var isHTML = parent.nodeName === 'HTML';
  	    var childrenRect = getBoundingClientRect(children);
  	    var parentRect = getBoundingClientRect(parent);
  	    var scrollParent = getScrollParent(children);
  
  	    var styles = getStyleComputedProperty(parent);
  	    var borderTopWidth = +styles.borderTopWidth.split('px')[0];
  	    var borderLeftWidth = +styles.borderLeftWidth.split('px')[0];
  
  	    var offsets = getClientRect({
  	      top: childrenRect.top - parentRect.top - borderTopWidth,
  	      left: childrenRect.left - parentRect.left - borderLeftWidth,
  	      width: childrenRect.width,
  	      height: childrenRect.height
  	    });
  	    offsets.marginTop = 0;
  	    offsets.marginLeft = 0;
  
  	    // Subtract margins of documentElement in case it's being used as parent
  	    // we do this only on HTML because it's the only element that behaves
  	    // differently when margins are applied to it. The margins are included in
  	    // the box of the documentElement, in the other cases not.
  	    if (!isIE10 && isHTML) {
  	      var marginTop = +styles.marginTop.split('px')[0];
  	      var marginLeft = +styles.marginLeft.split('px')[0];
  
  	      offsets.top -= borderTopWidth - marginTop;
  	      offsets.bottom -= borderTopWidth - marginTop;
  	      offsets.left -= borderLeftWidth - marginLeft;
  	      offsets.right -= borderLeftWidth - marginLeft;
  
  	      // Attach marginTop and marginLeft because in some circumstances we may need them
  	      offsets.marginTop = marginTop;
  	      offsets.marginLeft = marginLeft;
  	    }
  
  	    if (isIE10 ? parent.contains(scrollParent) : parent === scrollParent && scrollParent.nodeName !== 'BODY') {
  	      offsets = includeScroll(offsets, parent);
  	    }
  
  	    return offsets;
  	  }
  
  	  function getViewportOffsetRectRelativeToArtbitraryNode(element) {
  	    var html = window.document.documentElement;
  	    var relativeOffset = getOffsetRectRelativeToArbitraryNode(element, html);
  	    var width = Math.max(html.clientWidth, window.innerWidth || 0);
  	    var height = Math.max(html.clientHeight, window.innerHeight || 0);
  
  	    var scrollTop = getScroll(html);
  	    var scrollLeft = getScroll(html, 'left');
  
  	    var offset = {
  	      top: scrollTop - relativeOffset.top + relativeOffset.marginTop,
  	      left: scrollLeft - relativeOffset.left + relativeOffset.marginLeft,
  	      width: width,
  	      height: height
  	    };
  
  	    return getClientRect(offset);
  	  }
  
  	  /**
  	   * Check if the given element is fixed or is inside a fixed parent
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Element} element
  	   * @argument {Element} customContainer
  	   * @returns {Boolean} answer to "isFixed?"
  	   */
  	  function isFixed(element) {
  	    var nodeName = element.nodeName;
  	    if (nodeName === 'BODY' || nodeName === 'HTML') {
  	      return false;
  	    }
  	    if (getStyleComputedProperty(element, 'position') === 'fixed') {
  	      return true;
  	    }
  	    return isFixed(getParentNode(element));
  	  }
  
  	  /**
  	   * Computed the boundaries limits and return them
  	   * @method
  	   * @memberof Popper.Utils
  	   * @param {HTMLElement} popper
  	   * @param {HTMLElement} reference
  	   * @param {number} padding
  	   * @param {HTMLElement} boundariesElement - Element used to define the boundaries
  	   * @returns {Object} Coordinates of the boundaries
  	   */
  	  function getBoundaries(popper, reference, padding, boundariesElement) {
  	    // NOTE: 1 DOM access here
  	    var boundaries = { top: 0, left: 0 };
  	    var offsetParent = findCommonOffsetParent(popper, reference);
  
  	    // Handle viewport case
  	    if (boundariesElement === 'viewport') {
  	      boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent);
  	    } else {
  	      // Handle other cases based on DOM element used as boundaries
  	      var boundariesNode = void 0;
  	      if (boundariesElement === 'scrollParent') {
  	        boundariesNode = getScrollParent(getParentNode(popper));
  	        if (boundariesNode.nodeName === 'BODY') {
  	          boundariesNode = window.document.documentElement;
  	        }
  	      } else if (boundariesElement === 'window') {
  	        boundariesNode = window.document.documentElement;
  	      } else {
  	        boundariesNode = boundariesElement;
  	      }
  
  	      var offsets = getOffsetRectRelativeToArbitraryNode(boundariesNode, offsetParent);
  
  	      // In case of HTML, we need a different computation
  	      if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
  	        var _getWindowSizes = getWindowSizes(),
  	            height = _getWindowSizes.height,
  	            width = _getWindowSizes.width;
  
  	        boundaries.top += offsets.top - offsets.marginTop;
  	        boundaries.bottom = height + offsets.top;
  	        boundaries.left += offsets.left - offsets.marginLeft;
  	        boundaries.right = width + offsets.left;
  	      } else {
  	        // for all the other DOM elements, this one is good
  	        boundaries = offsets;
  	      }
  	    }
  
  	    // Add paddings
  	    boundaries.left += padding;
  	    boundaries.top += padding;
  	    boundaries.right -= padding;
  	    boundaries.bottom -= padding;
  
  	    return boundaries;
  	  }
  
  	  function getArea(_ref) {
  	    var width = _ref.width,
  	        height = _ref.height;
  
  	    return width * height;
  	  }
  
  	  /**
  	   * Utility used to transform the `auto` placement to the placement with more
  	   * available space.
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Object} data - The data object generated by update method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {Object} The data object, properly modified
  	   */
  	  function computeAutoPlacement(placement, refRect, popper, reference, boundariesElement) {
  	    var padding = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;
  
  	    if (placement.indexOf('auto') === -1) {
  	      return placement;
  	    }
  
  	    var boundaries = getBoundaries(popper, reference, padding, boundariesElement);
  
  	    var rects = {
  	      top: {
  	        width: boundaries.width,
  	        height: refRect.top - boundaries.top
  	      },
  	      right: {
  	        width: boundaries.right - refRect.right,
  	        height: boundaries.height
  	      },
  	      bottom: {
  	        width: boundaries.width,
  	        height: boundaries.bottom - refRect.bottom
  	      },
  	      left: {
  	        width: refRect.left - boundaries.left,
  	        height: boundaries.height
  	      }
  	    };
  
  	    var sortedAreas = Object.keys(rects).map(function (key) {
  	      return _extends({
  	        key: key
  	      }, rects[key], {
  	        area: getArea(rects[key])
  	      });
  	    }).sort(function (a, b) {
  	      return b.area - a.area;
  	    });
  
  	    var filteredAreas = sortedAreas.filter(function (_ref2) {
  	      var width = _ref2.width,
  	          height = _ref2.height;
  	      return width >= popper.clientWidth && height >= popper.clientHeight;
  	    });
  
  	    var computedPlacement = filteredAreas.length > 0 ? filteredAreas[0].key : sortedAreas[0].key;
  
  	    var variation = placement.split('-')[1];
  
  	    return computedPlacement + (variation ? '-' + variation : '');
  	  }
  
  	  /**
  	   * Get offsets to the reference element
  	   * @method
  	   * @memberof Popper.Utils
  	   * @param {Object} state
  	   * @param {Element} popper - the popper element
  	   * @param {Element} reference - the reference element (the popper will be relative to this)
  	   * @returns {Object} An object containing the offsets which will be applied to the popper
  	   */
  	  function getReferenceOffsets(state, popper, reference) {
  	    var commonOffsetParent = findCommonOffsetParent(popper, reference);
  	    return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent);
  	  }
  
  	  /**
  	   * Get the outer sizes of the given element (offset size + margins)
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Element} element
  	   * @returns {Object} object containing width and height properties
  	   */
  	  function getOuterSizes(element) {
  	    var styles = window.getComputedStyle(element);
  	    var x = parseFloat(styles.marginTop) + parseFloat(styles.marginBottom);
  	    var y = parseFloat(styles.marginLeft) + parseFloat(styles.marginRight);
  	    var result = {
  	      width: element.offsetWidth + y,
  	      height: element.offsetHeight + x
  	    };
  	    return result;
  	  }
  
  	  /**
  	   * Get the opposite placement of the given one
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {String} placement
  	   * @returns {String} flipped placement
  	   */
  	  function getOppositePlacement(placement) {
  	    var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' };
  	    return placement.replace(/left|right|bottom|top/g, function (matched) {
  	      return hash[matched];
  	    });
  	  }
  
  	  /**
  	   * Get offsets to the popper
  	   * @method
  	   * @memberof Popper.Utils
  	   * @param {Object} position - CSS position the Popper will get applied
  	   * @param {HTMLElement} popper - the popper element
  	   * @param {Object} referenceOffsets - the reference offsets (the popper will be relative to this)
  	   * @param {String} placement - one of the valid placement options
  	   * @returns {Object} popperOffsets - An object containing the offsets which will be applied to the popper
  	   */
  	  function getPopperOffsets(popper, referenceOffsets, placement) {
  	    placement = placement.split('-')[0];
  
  	    // Get popper node sizes
  	    var popperRect = getOuterSizes(popper);
  
  	    // Add position, width and height to our offsets object
  	    var popperOffsets = {
  	      width: popperRect.width,
  	      height: popperRect.height
  	    };
  
  	    // depending by the popper placement we have to compute its offsets slightly differently
  	    var isHoriz = ['right', 'left'].indexOf(placement) !== -1;
  	    var mainSide = isHoriz ? 'top' : 'left';
  	    var secondarySide = isHoriz ? 'left' : 'top';
  	    var measurement = isHoriz ? 'height' : 'width';
  	    var secondaryMeasurement = !isHoriz ? 'height' : 'width';
  
  	    popperOffsets[mainSide] = referenceOffsets[mainSide] + referenceOffsets[measurement] / 2 - popperRect[measurement] / 2;
  	    if (placement === secondarySide) {
  	      popperOffsets[secondarySide] = referenceOffsets[secondarySide] - popperRect[secondaryMeasurement];
  	    } else {
  	      popperOffsets[secondarySide] = referenceOffsets[getOppositePlacement(secondarySide)];
  	    }
  
  	    return popperOffsets;
  	  }
  
  	  /**
  	   * Mimics the `find` method of Array
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Array} arr
  	   * @argument prop
  	   * @argument value
  	   * @returns index or -1
  	   */
  	  function find(arr, check) {
  	    // use native find if supported
  	    if (Array.prototype.find) {
  	      return arr.find(check);
  	    }
  
  	    // use `filter` to obtain the same behavior of `find`
  	    return arr.filter(check)[0];
  	  }
  
  	  /**
  	   * Return the index of the matching object
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Array} arr
  	   * @argument prop
  	   * @argument value
  	   * @returns index or -1
  	   */
  	  function findIndex(arr, prop, value) {
  	    // use native findIndex if supported
  	    if (Array.prototype.findIndex) {
  	      return arr.findIndex(function (cur) {
  	        return cur[prop] === value;
  	      });
  	    }
  
  	    // use `find` + `indexOf` if `findIndex` isn't supported
  	    var match = find(arr, function (obj) {
  	      return obj[prop] === value;
  	    });
  	    return arr.indexOf(match);
  	  }
  
  	  /**
  	   * Loop trough the list of modifiers and run them in order,
  	   * each of them will then edit the data object.
  	   * @method
  	   * @memberof Popper.Utils
  	   * @param {dataObject} data
  	   * @param {Array} modifiers
  	   * @param {String} ends - Optional modifier name used as stopper
  	   * @returns {dataObject}
  	   */
  	  function runModifiers(modifiers, data, ends) {
  	    var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends));
  
  	    modifiersToRun.forEach(function (modifier) {
  	      if (modifier.function) {
  	        console.warn('`modifier.function` is deprecated, use `modifier.fn`!');
  	      }
  	      var fn = modifier.function || modifier.fn;
  	      if (modifier.enabled && isFunction(fn)) {
  	        // Add properties to offsets to make them a complete clientRect object
  	        // we do this before each modifier to make sure the previous one doesn't
  	        // mess with these values
  	        data.offsets.popper = getClientRect(data.offsets.popper);
  	        data.offsets.reference = getClientRect(data.offsets.reference);
  
  	        data = fn(data, modifier);
  	      }
  	    });
  
  	    return data;
  	  }
  
  	  /**
  	   * Updates the position of the popper, computing the new offsets and applying
  	   * the new style.<br />
  	   * Prefer `scheduleUpdate` over `update` because of performance reasons.
  	   * @method
  	   * @memberof Popper
  	   */
  	  function update() {
  	    // if popper is destroyed, don't perform any further update
  	    if (this.state.isDestroyed) {
  	      return;
  	    }
  
  	    var data = {
  	      instance: this,
  	      styles: {},
  	      attributes: {},
  	      flipped: false,
  	      offsets: {}
  	    };
  
  	    // compute reference element offsets
  	    data.offsets.reference = getReferenceOffsets(this.state, this.popper, this.reference);
  
  	    // compute auto placement, store placement inside the data object,
  	    // modifiers will be able to edit `placement` if needed
  	    // and refer to originalPlacement to know the original value
  	    data.placement = computeAutoPlacement(this.options.placement, data.offsets.reference, this.popper, this.reference, this.options.modifiers.flip.boundariesElement, this.options.modifiers.flip.padding);
  
  	    // store the computed placement inside `originalPlacement`
  	    data.originalPlacement = data.placement;
  
  	    // compute the popper offsets
  	    data.offsets.popper = getPopperOffsets(this.popper, data.offsets.reference, data.placement);
  	    data.offsets.popper.position = 'absolute';
  
  	    // run the modifiers
  	    data = runModifiers(this.modifiers, data);
  
  	    // the first `update` will call `onCreate` callback
  	    // the other ones will call `onUpdate` callback
  	    if (!this.state.isCreated) {
  	      this.state.isCreated = true;
  	      this.options.onCreate(data);
  	    } else {
  	      this.options.onUpdate(data);
  	    }
  	  }
  
  	  /**
  	   * Helper used to know if the given modifier is enabled.
  	   * @method
  	   * @memberof Popper.Utils
  	   * @returns {Boolean}
  	   */
  	  function isModifierEnabled(modifiers, modifierName) {
  	    return modifiers.some(function (_ref) {
  	      var name = _ref.name,
  	          enabled = _ref.enabled;
  	      return enabled && name === modifierName;
  	    });
  	  }
  
  	  /**
  	   * Get the prefixed supported property name
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {String} property (camelCase)
  	   * @returns {String} prefixed property (camelCase)
  	   */
  	  function getSupportedPropertyName(property) {
  	    var prefixes = [false, 'ms', 'webkit', 'moz', 'o'];
  	    var upperProp = property.charAt(0).toUpperCase() + property.slice(1);
  
  	    for (var i = 0; i < prefixes.length - 1; i++) {
  	      var prefix = prefixes[i];
  	      var toCheck = prefix ? '' + prefix + upperProp : property;
  	      if (typeof window.document.body.style[toCheck] !== 'undefined') {
  	        return toCheck;
  	      }
  	    }
  	    return null;
  	  }
  
  	  /**
  	   * Destroy the popper
  	   * @method
  	   * @memberof Popper
  	   */
  	  function destroy() {
  	    this.state.isDestroyed = true;
  
  	    // touch DOM only if `applyStyle` modifier is enabled
  	    if (isModifierEnabled(this.modifiers, 'applyStyle')) {
  	      this.popper.removeAttribute('x-placement');
  	      this.popper.style.left = '';
  	      this.popper.style.position = '';
  	      this.popper.style.top = '';
  	      this.popper.style[getSupportedPropertyName('transform')] = '';
  	    }
  
  	    this.disableEventListeners();
  
  	    // remove the popper if user explicity asked for the deletion on destroy
  	    // do not use `remove` because IE11 doesn't support it
  	    if (this.options.removeOnDestroy) {
  	      this.popper.parentNode.removeChild(this.popper);
  	    }
  	    return this;
  	  }
  
  	  function attachToScrollParents(scrollParent, event, callback, scrollParents) {
  	    var isBody = scrollParent.nodeName === 'BODY';
  	    var target = isBody ? window : scrollParent;
  	    target.addEventListener(event, callback, { passive: true });
  
  	    if (!isBody) {
  	      attachToScrollParents(getScrollParent(target.parentNode), event, callback, scrollParents);
  	    }
  	    scrollParents.push(target);
  	  }
  
  	  /**
  	   * Setup needed event listeners used to update the popper position
  	   * @method
  	   * @memberof Popper.Utils
  	   * @private
  	   */
  	  function setupEventListeners(reference, options, state, updateBound) {
  	    // Resize event listener on window
  	    state.updateBound = updateBound;
  	    window.addEventListener('resize', state.updateBound, { passive: true });
  
  	    // Scroll event listener on scroll parents
  	    var scrollElement = getScrollParent(reference);
  	    attachToScrollParents(scrollElement, 'scroll', state.updateBound, state.scrollParents);
  	    state.scrollElement = scrollElement;
  	    state.eventsEnabled = true;
  
  	    return state;
  	  }
  
  	  /**
  	   * It will add resize/scroll events and start recalculating
  	   * position of the popper element when they are triggered.
  	   * @method
  	   * @memberof Popper
  	   */
  	  function enableEventListeners() {
  	    if (!this.state.eventsEnabled) {
  	      this.state = setupEventListeners(this.reference, this.options, this.state, this.scheduleUpdate);
  	    }
  	  }
  
  	  /**
  	   * Remove event listeners used to update the popper position
  	   * @method
  	   * @memberof Popper.Utils
  	   * @private
  	   */
  	  function removeEventListeners(reference, state) {
  	    // Remove resize event listener on window
  	    window.removeEventListener('resize', state.updateBound);
  
  	    // Remove scroll event listener on scroll parents
  	    state.scrollParents.forEach(function (target) {
  	      target.removeEventListener('scroll', state.updateBound);
  	    });
  
  	    // Reset state
  	    state.updateBound = null;
  	    state.scrollParents = [];
  	    state.scrollElement = null;
  	    state.eventsEnabled = false;
  	    return state;
  	  }
  
  	  /**
  	   * It will remove resize/scroll events and won't recalculate popper position
  	   * when they are triggered. It also won't trigger onUpdate callback anymore,
  	   * unless you call `update` method manually.
  	   * @method
  	   * @memberof Popper
  	   */
  	  function disableEventListeners() {
  	    if (this.state.eventsEnabled) {
  	      window.cancelAnimationFrame(this.scheduleUpdate);
  	      this.state = removeEventListeners(this.reference, this.state);
  	    }
  	  }
  
  	  /**
  	   * Tells if a given input is a number
  	   * @method
  	   * @memberof Popper.Utils
  	   * @param {*} input to check
  	   * @return {Boolean}
  	   */
  	  function isNumeric(n) {
  	    return n !== '' && !isNaN(parseFloat(n)) && isFinite(n);
  	  }
  
  	  /**
  	   * Set the style to the given popper
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Element} element - Element to apply the style to
  	   * @argument {Object} styles
  	   * Object with a list of properties and values which will be applied to the element
  	   */
  	  function setStyles(element, styles) {
  	    Object.keys(styles).forEach(function (prop) {
  	      var unit = '';
  	      // add unit if the value is numeric and is one of the following
  	      if (['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !== -1 && isNumeric(styles[prop])) {
  	        unit = 'px';
  	      }
  	      element.style[prop] = styles[prop] + unit;
  	    });
  	  }
  
  	  /**
  	   * Set the attributes to the given popper
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {Element} element - Element to apply the attributes to
  	   * @argument {Object} styles
  	   * Object with a list of properties and values which will be applied to the element
  	   */
  	  function setAttributes(element, attributes) {
  	    Object.keys(attributes).forEach(function (prop) {
  	      var value = attributes[prop];
  	      if (value !== false) {
  	        element.setAttribute(prop, attributes[prop]);
  	      } else {
  	        element.removeAttribute(prop);
  	      }
  	    });
  	  }
  
  	  /**
  	   * @function
  	   * @memberof Modifiers
  	   * @argument {Object} data - The data object generated by `update` method
  	   * @argument {Object} data.styles - List of style properties - values to apply to popper element
  	   * @argument {Object} data.attributes - List of attribute properties - values to apply to popper element
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {Object} The same data object
  	   */
  	  function applyStyle(data) {
  	    // any property present in `data.styles` will be applied to the popper,
  	    // in this way we can make the 3rd party modifiers add custom styles to it
  	    // Be aware, modifiers could override the properties defined in the previous
  	    // lines of this modifier!
  	    setStyles(data.instance.popper, data.styles);
  
  	    // any property present in `data.attributes` will be applied to the popper,
  	    // they will be set as HTML attributes of the element
  	    setAttributes(data.instance.popper, data.attributes);
  
  	    // if the arrow style has been computed, apply the arrow style
  	    if (data.offsets.arrow) {
  	      setStyles(data.arrowElement, data.offsets.arrow);
  	    }
  
  	    return data;
  	  }
  
  	  /**
  	   * Set the x-placement attribute before everything else because it could be used
  	   * to add margins to the popper margins needs to be calculated to get the
  	   * correct popper offsets.
  	   * @method
  	   * @memberof Popper.modifiers
  	   * @param {HTMLElement} reference - The reference element used to position the popper
  	   * @param {HTMLElement} popper - The HTML element used as popper.
  	   * @param {Object} options - Popper.js options
  	   */
  	  function applyStyleOnLoad(reference, popper, options, modifierOptions, state) {
  	    // compute reference element offsets
  	    var referenceOffsets = getReferenceOffsets(state, popper, reference);
  
  	    // compute auto placement, store placement inside the data object,
  	    // modifiers will be able to edit `placement` if needed
  	    // and refer to originalPlacement to know the original value
  	    var placement = computeAutoPlacement(options.placement, referenceOffsets, popper, reference, options.modifiers.flip.boundariesElement, options.modifiers.flip.padding);
  
  	    popper.setAttribute('x-placement', placement);
  
  	    // Apply `position` to popper before anything else because
  	    // without the position applied we can't guarantee correct computations
  	    setStyles(popper, { position: 'absolute' });
  
  	    return options;
  	  }
  
  	  /**
  	   * @function
  	   * @memberof Modifiers
  	   * @argument {Object} data - The data object generated by `update` method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {Object} The data object, properly modified
  	   */
  	  function computeStyle(data, options) {
  	    var x = options.x,
  	        y = options.y;
  	    var popper = data.offsets.popper;
  
  	    // Remove this legacy support in Popper.js v2
  
  	    var legacyGpuAccelerationOption = find(data.instance.modifiers, function (modifier) {
  	      return modifier.name === 'applyStyle';
  	    }).gpuAcceleration;
  	    if (legacyGpuAccelerationOption !== undefined) {
  	      console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');
  	    }
  	    var gpuAcceleration = legacyGpuAccelerationOption !== undefined ? legacyGpuAccelerationOption : options.gpuAcceleration;
  
  	    var offsetParent = getOffsetParent(data.instance.popper);
  	    var offsetParentRect = getBoundingClientRect(offsetParent);
  
  	    // Styles
  	    var styles = {
  	      position: popper.position
  	    };
  
  	    // floor sides to avoid blurry text
  	    var offsets = {
  	      left: Math.floor(popper.left),
  	      top: Math.floor(popper.top),
  	      bottom: Math.floor(popper.bottom),
  	      right: Math.floor(popper.right)
  	    };
  
  	    var sideA = x === 'bottom' ? 'top' : 'bottom';
  	    var sideB = y === 'right' ? 'left' : 'right';
  
  	    // if gpuAcceleration is set to `true` and transform is supported,
  	    //  we use `translate3d` to apply the position to the popper we
  	    // automatically use the supported prefixed version if needed
  	    var prefixedProperty = getSupportedPropertyName('transform');
  
  	    // now, let's make a step back and look at this code closely (wtf?)
  	    // If the content of the popper grows once it's been positioned, it
  	    // may happen that the popper gets misplaced because of the new content
  	    // overflowing its reference element
  	    // To avoid this problem, we provide two options (x and y), which allow
  	    // the consumer to define the offset origin.
  	    // If we position a popper on top of a reference element, we can set
  	    // `x` to `top` to make the popper grow towards its top instead of
  	    // its bottom.
  	    var left = void 0,
  	        top = void 0;
  	    if (sideA === 'bottom') {
  	      top = -offsetParentRect.height + offsets.bottom;
  	    } else {
  	      top = offsets.top;
  	    }
  	    if (sideB === 'right') {
  	      left = -offsetParentRect.width + offsets.right;
  	    } else {
  	      left = offsets.left;
  	    }
  	    if (gpuAcceleration && prefixedProperty) {
  	      styles[prefixedProperty] = 'translate3d(' + left + 'px, ' + top + 'px, 0)';
  	      styles[sideA] = 0;
  	      styles[sideB] = 0;
  	      styles.willChange = 'transform';
  	    } else {
  	      // othwerise, we use the standard `top`, `left`, `bottom` and `right` properties
  	      var invertTop = sideA === 'bottom' ? -1 : 1;
  	      var invertLeft = sideB === 'right' ? -1 : 1;
  	      styles[sideA] = top * invertTop;
  	      styles[sideB] = left * invertLeft;
  	      styles.willChange = sideA + ', ' + sideB;
  	    }
  
  	    // Attributes
  	    var attributes = {
  	      'x-placement': data.placement
  	    };
  
  	    // Update attributes and styles of `data`
  	    data.attributes = _extends({}, attributes, data.attributes);
  	    data.styles = _extends({}, styles, data.styles);
  
  	    return data;
  	  }
  
  	  /**
  	   * Helper used to know if the given modifier depends from another one.<br />
  	   * It checks if the needed modifier is listed and enabled.
  	   * @method
  	   * @memberof Popper.Utils
  	   * @param {Array} modifiers - list of modifiers
  	   * @param {String} requestingName - name of requesting modifier
  	   * @param {String} requestedName - name of requested modifier
  	   * @returns {Boolean}
  	   */
  	  function isModifierRequired(modifiers, requestingName, requestedName) {
  	    var requesting = find(modifiers, function (_ref) {
  	      var name = _ref.name;
  	      return name === requestingName;
  	    });
  
  	    var isRequired = !!requesting && modifiers.some(function (modifier) {
  	      return modifier.name === requestedName && modifier.enabled && modifier.order < requesting.order;
  	    });
  
  	    if (!isRequired) {
  	      var _requesting = '`' + requestingName + '`';
  	      var requested = '`' + requestedName + '`';
  	      console.warn(requested + ' modifier is required by ' + _requesting + ' modifier in order to work, be sure to include it before ' + _requesting + '!');
  	    }
  	    return isRequired;
  	  }
  
  	  /**
  	   * @function
  	   * @memberof Modifiers
  	   * @argument {Object} data - The data object generated by update method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {Object} The data object, properly modified
  	   */
  	  function arrow(data, options) {
  	    // arrow depends on keepTogether in order to work
  	    if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
  	      return data;
  	    }
  
  	    var arrowElement = options.element;
  
  	    // if arrowElement is a string, suppose it's a CSS selector
  	    if (typeof arrowElement === 'string') {
  	      arrowElement = data.instance.popper.querySelector(arrowElement);
  
  	      // if arrowElement is not found, don't run the modifier
  	      if (!arrowElement) {
  	        return data;
  	      }
  	    } else {
  	      // if the arrowElement isn't a query selector we must check that the
  	      // provided DOM node is child of its popper node
  	      if (!data.instance.popper.contains(arrowElement)) {
  	        console.warn('WARNING: `arrow.element` must be child of its popper element!');
  	        return data;
  	      }
  	    }
  
  	    var placement = data.placement.split('-')[0];
  	    var _data$offsets = data.offsets,
  	        popper = _data$offsets.popper,
  	        reference = _data$offsets.reference;
  
  	    var isVertical = ['left', 'right'].indexOf(placement) !== -1;
  
  	    var len = isVertical ? 'height' : 'width';
  	    var side = isVertical ? 'top' : 'left';
  	    var altSide = isVertical ? 'left' : 'top';
  	    var opSide = isVertical ? 'bottom' : 'right';
  	    var arrowElementSize = getOuterSizes(arrowElement)[len];
  
  	    //
  	    // extends keepTogether behavior making sure the popper and its reference have enough pixels in conjuction
  	    //
  
  	    // top/left side
  	    if (reference[opSide] - arrowElementSize < popper[side]) {
  	      data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowElementSize);
  	    }
  	    // bottom/right side
  	    if (reference[side] + arrowElementSize > popper[opSide]) {
  	      data.offsets.popper[side] += reference[side] + arrowElementSize - popper[opSide];
  	    }
  
  	    // compute center of the popper
  	    var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;
  
  	    // Compute the sideValue using the updated popper offsets
  	    var sideValue = center - getClientRect(data.offsets.popper)[side];
  
  	    // prevent arrowElement from being placed not contiguously to its popper
  	    sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);
  
  	    data.arrowElement = arrowElement;
  	    data.offsets.arrow = {};
  	    data.offsets.arrow[side] = Math.round(sideValue);
  	    data.offsets.arrow[altSide] = ''; // make sure to unset any eventual altSide value from the DOM node
  
  	    return data;
  	  }
  
  	  /**
  	   * Get the opposite placement variation of the given one
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {String} placement variation
  	   * @returns {String} flipped placement variation
  	   */
  	  function getOppositeVariation(variation) {
  	    if (variation === 'end') {
  	      return 'start';
  	    } else if (variation === 'start') {
  	      return 'end';
  	    }
  	    return variation;
  	  }
  
  	  /**
  	   * List of accepted placements to use as values of the `placement` option.<br />
  	   * Valid placements are:
  	   * - `auto`
  	   * - `top`
  	   * - `right`
  	   * - `bottom`
  	   * - `left`
  	   *
  	   * Each placement can have a variation from this list:
  	   * - `-start`
  	   * - `-end`
  	   *
  	   * Variations are interpreted easily if you think of them as the left to right
  	   * written languages. Horizontally (`top` and `bottom`), `start` is left and `end`
  	   * is right.<br />
  	   * Vertically (`left` and `right`), `start` is top and `end` is bottom.
  	   *
  	   * Some valid examples are:
  	   * - `top-end` (on top of reference, right aligned)
  	   * - `right-start` (on right of reference, top aligned)
  	   * - `bottom` (on bottom, centered)
  	   * - `auto-right` (on the side with more space available, alignment depends by placement)
  	   *
  	   * @static
  	   * @type {Array}
  	   * @enum {String}
  	   * @readonly
  	   * @method placements
  	   * @memberof Popper
  	   */
  	  var placements = ['auto-start', 'auto', 'auto-end', 'top-start', 'top', 'top-end', 'right-start', 'right', 'right-end', 'bottom-end', 'bottom', 'bottom-start', 'left-end', 'left', 'left-start'];
  
  	  // Get rid of `auto` `auto-start` and `auto-end`
  	  var validPlacements = placements.slice(3);
  
  	  /**
  	   * Given an initial placement, returns all the subsequent placements
  	   * clockwise (or counter-clockwise).
  	   *
  	   * @method
  	   * @memberof Popper.Utils
  	   * @argument {String} placement - A valid placement (it accepts variations)
  	   * @argument {Boolean} counter - Set to true to walk the placements counterclockwise
  	   * @returns {Array} placements including their variations
  	   */
  	  function clockwise(placement) {
  	    var counter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
  
  	    var index = validPlacements.indexOf(placement);
  	    var arr = validPlacements.slice(index + 1).concat(validPlacements.slice(0, index));
  	    return counter ? arr.reverse() : arr;
  	  }
  
  	  var BEHAVIORS = {
  	    FLIP: 'flip',
  	    CLOCKWISE: 'clockwise',
  	    COUNTERCLOCKWISE: 'counterclockwise'
  	  };
  
  	  /**
  	   * @function
  	   * @memberof Modifiers
  	   * @argument {Object} data - The data object generated by update method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {Object} The data object, properly modified
  	   */
  	  function flip(data, options) {
  	    // if `inner` modifier is enabled, we can't use the `flip` modifier
  	    if (isModifierEnabled(data.instance.modifiers, 'inner')) {
  	      return data;
  	    }
  
  	    if (data.flipped && data.placement === data.originalPlacement) {
  	      // seems like flip is trying to loop, probably there's not enough space on any of the flippable sides
  	      return data;
  	    }
  
  	    var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, options.boundariesElement);
  
  	    var placement = data.placement.split('-')[0];
  	    var placementOpposite = getOppositePlacement(placement);
  	    var variation = data.placement.split('-')[1] || '';
  
  	    var flipOrder = [];
  
  	    switch (options.behavior) {
  	      case BEHAVIORS.FLIP:
  	        flipOrder = [placement, placementOpposite];
  	        break;
  	      case BEHAVIORS.CLOCKWISE:
  	        flipOrder = clockwise(placement);
  	        break;
  	      case BEHAVIORS.COUNTERCLOCKWISE:
  	        flipOrder = clockwise(placement, true);
  	        break;
  	      default:
  	        flipOrder = options.behavior;
  	    }
  
  	    flipOrder.forEach(function (step, index) {
  	      if (placement !== step || flipOrder.length === index + 1) {
  	        return data;
  	      }
  
  	      placement = data.placement.split('-')[0];
  	      placementOpposite = getOppositePlacement(placement);
  
  	      var popperOffsets = data.offsets.popper;
  	      var refOffsets = data.offsets.reference;
  
  	      // using floor because the reference offsets may contain decimals we are not going to consider here
  	      var floor = Math.floor;
  	      var overlapsRef = placement === 'left' && floor(popperOffsets.right) > floor(refOffsets.left) || placement === 'right' && floor(popperOffsets.left) < floor(refOffsets.right) || placement === 'top' && floor(popperOffsets.bottom) > floor(refOffsets.top) || placement === 'bottom' && floor(popperOffsets.top) < floor(refOffsets.bottom);
  
  	      var overflowsLeft = floor(popperOffsets.left) < floor(boundaries.left);
  	      var overflowsRight = floor(popperOffsets.right) > floor(boundaries.right);
  	      var overflowsTop = floor(popperOffsets.top) < floor(boundaries.top);
  	      var overflowsBottom = floor(popperOffsets.bottom) > floor(boundaries.bottom);
  
  	      var overflowsBoundaries = placement === 'left' && overflowsLeft || placement === 'right' && overflowsRight || placement === 'top' && overflowsTop || placement === 'bottom' && overflowsBottom;
  
  	      // flip the variation if required
  	      var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
  	      var flippedVariation = !!options.flipVariations && (isVertical && variation === 'start' && overflowsLeft || isVertical && variation === 'end' && overflowsRight || !isVertical && variation === 'start' && overflowsTop || !isVertical && variation === 'end' && overflowsBottom);
  
  	      if (overlapsRef || overflowsBoundaries || flippedVariation) {
  	        // this boolean to detect any flip loop
  	        data.flipped = true;
  
  	        if (overlapsRef || overflowsBoundaries) {
  	          placement = flipOrder[index + 1];
  	        }
  
  	        if (flippedVariation) {
  	          variation = getOppositeVariation(variation);
  	        }
  
  	        data.placement = placement + (variation ? '-' + variation : '');
  
  	        // this object contains `position`, we want to preserve it along with
  	        // any additional property we may add in the future
  	        data.offsets.popper = _extends({}, data.offsets.popper, getPopperOffsets(data.instance.popper, data.offsets.reference, data.placement));
  
  	        data = runModifiers(data.instance.modifiers, data, 'flip');
  	      }
  	    });
  	    return data;
  	  }
  
  	  /**
  	   * @function
  	   * @memberof Modifiers
  	   * @argument {Object} data - The data object generated by update method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {Object} The data object, properly modified
  	   */
  	  function keepTogether(data) {
  	    var _data$offsets = data.offsets,
  	        popper = _data$offsets.popper,
  	        reference = _data$offsets.reference;
  
  	    var placement = data.placement.split('-')[0];
  	    var floor = Math.floor;
  	    var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
  	    var side = isVertical ? 'right' : 'bottom';
  	    var opSide = isVertical ? 'left' : 'top';
  	    var measurement = isVertical ? 'width' : 'height';
  
  	    if (popper[side] < floor(reference[opSide])) {
  	      data.offsets.popper[opSide] = floor(reference[opSide]) - popper[measurement];
  	    }
  	    if (popper[opSide] > floor(reference[side])) {
  	      data.offsets.popper[opSide] = floor(reference[side]);
  	    }
  
  	    return data;
  	  }
  
  	  /**
  	   * Converts a string containing value + unit into a px value number
  	   * @function
  	   * @memberof {modifiers~offset}
  	   * @private
  	   * @argument {String} str - Value + unit string
  	   * @argument {String} measurement - `height` or `width`
  	   * @argument {Object} popperOffsets
  	   * @argument {Object} referenceOffsets
  	   * @returns {Number|String}
  	   * Value in pixels, or original string if no values were extracted
  	   */
  	  function toValue(str, measurement, popperOffsets, referenceOffsets) {
  	    // separate value from unit
  	    var split = str.match(/((?:\-|\+)?\d*\.?\d*)(.*)/);
  	    var value = +split[1];
  	    var unit = split[2];
  
  	    // If it's not a number it's an operator, I guess
  	    if (!value) {
  	      return str;
  	    }
  
  	    if (unit.indexOf('%') === 0) {
  	      var element = void 0;
  	      switch (unit) {
  	        case '%p':
  	          element = popperOffsets;
  	          break;
  	        case '%':
  	        case '%r':
  	        default:
  	          element = referenceOffsets;
  	      }
  
  	      var rect = getClientRect(element);
  	      return rect[measurement] / 100 * value;
  	    } else if (unit === 'vh' || unit === 'vw') {
  	      // if is a vh or vw, we calculate the size based on the viewport
  	      var size = void 0;
  	      if (unit === 'vh') {
  	        size = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
  	      } else {
  	        size = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
  	      }
  	      return size / 100 * value;
  	    } else {
  	      // if is an explicit pixel unit, we get rid of the unit and keep the value
  	      // if is an implicit unit, it's px, and we return just the value
  	      return value;
  	    }
  	  }
  
  	  /**
  	   * Parse an `offset` string to extrapolate `x` and `y` numeric offsets.
  	   * @function
  	   * @memberof {modifiers~offset}
  	   * @private
  	   * @argument {String} offset
  	   * @argument {Object} popperOffsets
  	   * @argument {Object} referenceOffsets
  	   * @argument {String} basePlacement
  	   * @returns {Array} a two cells array with x and y offsets in numbers
  	   */
  	  function parseOffset(offset, popperOffsets, referenceOffsets, basePlacement) {
  	    var offsets = [0, 0];
  
  	    // Use height if placement is left or right and index is 0 otherwise use width
  	    // in this way the first offset will use an axis and the second one
  	    // will use the other one
  	    var useHeight = ['right', 'left'].indexOf(basePlacement) !== -1;
  
  	    // Split the offset string to obtain a list of values and operands
  	    // The regex addresses values with the plus or minus sign in front (+10, -20, etc)
  	    var fragments = offset.split(/(\+|\-)/).map(function (frag) {
  	      return frag.trim();
  	    });
  
  	    // Detect if the offset string contains a pair of values or a single one
  	    // they could be separated by comma or space
  	    var divider = fragments.indexOf(find(fragments, function (frag) {
  	      return frag.search(/,|\s/) !== -1;
  	    }));
  
  	    if (fragments[divider] && fragments[divider].indexOf(',') === -1) {
  	      console.warn('Offsets separated by white space(s) are deprecated, use a comma (,) instead.');
  	    }
  
  	    // If divider is found, we divide the list of values and operands to divide
  	    // them by ofset X and Y.
  	    var splitRegex = /\s*,\s*|\s+/;
  	    var ops = divider !== -1 ? [fragments.slice(0, divider).concat([fragments[divider].split(splitRegex)[0]]), [fragments[divider].split(splitRegex)[1]].concat(fragments.slice(divider + 1))] : [fragments];
  
  	    // Convert the values with units to absolute pixels to allow our computations
  	    ops = ops.map(function (op, index) {
  	      // Most of the units rely on the orientation of the popper
  	      var measurement = (index === 1 ? !useHeight : useHeight) ? 'height' : 'width';
  	      var mergeWithPrevious = false;
  	      return op
  	      // This aggregates any `+` or `-` sign that aren't considered operators
  	      // e.g.: 10 + +5 => [10, +, +5]
  	      .reduce(function (a, b) {
  	        if (a[a.length - 1] === '' && ['+', '-'].indexOf(b) !== -1) {
  	          a[a.length - 1] = b;
  	          mergeWithPrevious = true;
  	          return a;
  	        } else if (mergeWithPrevious) {
  	          a[a.length - 1] += b;
  	          mergeWithPrevious = false;
  	          return a;
  	        } else {
  	          return a.concat(b);
  	        }
  	      }, [])
  	      // Here we convert the string values into number values (in px)
  	      .map(function (str) {
  	        return toValue(str, measurement, popperOffsets, referenceOffsets);
  	      });
  	    });
  
  	    // Loop trough the offsets arrays and execute the operations
  	    ops.forEach(function (op, index) {
  	      op.forEach(function (frag, index2) {
  	        if (isNumeric(frag)) {
  	          offsets[index] += frag * (op[index2 - 1] === '-' ? -1 : 1);
  	        }
  	      });
  	    });
  	    return offsets;
  	  }
  
  	  /**
  	   * @function
  	   * @memberof Modifiers
  	   * @argument {Object} data - The data object generated by update method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @argument {Number|String} options.offset=0
  	   * The offset value as described in the modifier description
  	   * @returns {Object} The data object, properly modified
  	   */
  	  function offset(data, _ref) {
  	    var offset = _ref.offset;
  	    var placement = data.placement,
  	        _data$offsets = data.offsets,
  	        popper = _data$offsets.popper,
  	        reference = _data$offsets.reference;
  
  	    var basePlacement = placement.split('-')[0];
  
  	    var offsets = void 0;
  	    if (isNumeric(+offset)) {
  	      offsets = [+offset, 0];
  	    } else {
  	      offsets = parseOffset(offset, popper, reference, basePlacement);
  	    }
  
  	    if (basePlacement === 'left') {
  	      popper.top += offsets[0];
  	      popper.left -= offsets[1];
  	    } else if (basePlacement === 'right') {
  	      popper.top += offsets[0];
  	      popper.left += offsets[1];
  	    } else if (basePlacement === 'top') {
  	      popper.left += offsets[0];
  	      popper.top -= offsets[1];
  	    } else if (basePlacement === 'bottom') {
  	      popper.left += offsets[0];
  	      popper.top += offsets[1];
  	    }
  
  	    data.popper = popper;
  	    return data;
  	  }
  
  	  /**
  	   * @function
  	   * @memberof Modifiers
  	   * @argument {Object} data - The data object generated by `update` method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {Object} The data object, properly modified
  	   */
  	  function preventOverflow(data, options) {
  	    var boundariesElement = options.boundariesElement || getOffsetParent(data.instance.popper);
  
  	    // If offsetParent is the reference element, we really want to
  	    // go one step up and use the next offsetParent as reference to
  	    // avoid to make this modifier completely useless and look like broken
  	    if (data.instance.reference === boundariesElement) {
  	      boundariesElement = getOffsetParent(boundariesElement);
  	    }
  
  	    var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, boundariesElement);
  	    options.boundaries = boundaries;
  
  	    var order = options.priority;
  	    var popper = data.offsets.popper;
  
  	    var check = {
  	      primary: function primary(placement) {
  	        var value = popper[placement];
  	        if (popper[placement] < boundaries[placement] && !options.escapeWithReference) {
  	          value = Math.max(popper[placement], boundaries[placement]);
  	        }
  	        return defineProperty({}, placement, value);
  	      },
  	      secondary: function secondary(placement) {
  	        var mainSide = placement === 'right' ? 'left' : 'top';
  	        var value = popper[mainSide];
  	        if (popper[placement] > boundaries[placement] && !options.escapeWithReference) {
  	          value = Math.min(popper[mainSide], boundaries[placement] - (placement === 'right' ? popper.width : popper.height));
  	        }
  	        return defineProperty({}, mainSide, value);
  	      }
  	    };
  
  	    order.forEach(function (placement) {
  	      var side = ['left', 'top'].indexOf(placement) !== -1 ? 'primary' : 'secondary';
  	      popper = _extends({}, popper, check[side](placement));
  	    });
  
  	    data.offsets.popper = popper;
  
  	    return data;
  	  }
  
  	  /**
  	   * @function
  	   * @memberof Modifiers
  	   * @argument {Object} data - The data object generated by `update` method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {Object} The data object, properly modified
  	   */
  	  function shift(data) {
  	    var placement = data.placement;
  	    var basePlacement = placement.split('-')[0];
  	    var shiftvariation = placement.split('-')[1];
  
  	    // if shift shiftvariation is specified, run the modifier
  	    if (shiftvariation) {
  	      var _data$offsets = data.offsets,
  	          reference = _data$offsets.reference,
  	          popper = _data$offsets.popper;
  
  	      var isVertical = ['bottom', 'top'].indexOf(basePlacement) !== -1;
  	      var side = isVertical ? 'left' : 'top';
  	      var measurement = isVertical ? 'width' : 'height';
  
  	      var shiftOffsets = {
  	        start: defineProperty({}, side, reference[side]),
  	        end: defineProperty({}, side, reference[side] + reference[measurement] - popper[measurement])
  	      };
  
  	      data.offsets.popper = _extends({}, popper, shiftOffsets[shiftvariation]);
  	    }
  
  	    return data;
  	  }
  
  	  /**
  	   * @function
  	   * @memberof Modifiers
  	   * @argument {Object} data - The data object generated by update method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {Object} The data object, properly modified
  	   */
  	  function hide(data) {
  	    if (!isModifierRequired(data.instance.modifiers, 'hide', 'preventOverflow')) {
  	      return data;
  	    }
  
  	    var refRect = data.offsets.reference;
  	    var bound = find(data.instance.modifiers, function (modifier) {
  	      return modifier.name === 'preventOverflow';
  	    }).boundaries;
  
  	    if (refRect.bottom < bound.top || refRect.left > bound.right || refRect.top > bound.bottom || refRect.right < bound.left) {
  	      // Avoid unnecessary DOM access if visibility hasn't changed
  	      if (data.hide === true) {
  	        return data;
  	      }
  
  	      data.hide = true;
  	      data.attributes['x-out-of-boundaries'] = '';
  	    } else {
  	      // Avoid unnecessary DOM access if visibility hasn't changed
  	      if (data.hide === false) {
  	        return data;
  	      }
  
  	      data.hide = false;
  	      data.attributes['x-out-of-boundaries'] = false;
  	    }
  
  	    return data;
  	  }
  
  	  /**
  	   * @function
  	   * @memberof Modifiers
  	   * @argument {Object} data - The data object generated by `update` method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {Object} The data object, properly modified
  	   */
  	  function inner(data) {
  	    var placement = data.placement;
  	    var basePlacement = placement.split('-')[0];
  	    var _data$offsets = data.offsets,
  	        popper = _data$offsets.popper,
  	        reference = _data$offsets.reference;
  
  	    var isHoriz = ['left', 'right'].indexOf(basePlacement) !== -1;
  
  	    var subtractLength = ['top', 'left'].indexOf(basePlacement) === -1;
  
  	    popper[isHoriz ? 'left' : 'top'] = reference[placement] - (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);
  
  	    data.placement = getOppositePlacement(placement);
  	    data.offsets.popper = getClientRect(popper);
  
  	    return data;
  	  }
  
  	  /**
  	   * Modifier function, each modifier can have a function of this type assigned
  	   * to its `fn` property.<br />
  	   * These functions will be called on each update, this means that you must
  	   * make sure they are performant enough to avoid performance bottlenecks.
  	   *
  	   * @function ModifierFn
  	   * @argument {dataObject} data - The data object generated by `update` method
  	   * @argument {Object} options - Modifiers configuration and options
  	   * @returns {dataObject} The data object, properly modified
  	   */
  
  	  /**
  	   * Modifiers are plugins used to alter the behavior of your poppers.<br />
  	   * Popper.js uses a set of 9 modifiers to provide all the basic functionalities
  	   * needed by the library.
  	   *
  	   * Usually you don't want to override the `order`, `fn` and `onLoad` props.
  	   * All the other properties are configurations that could be tweaked.
  	   * @namespace modifiers
  	   */
  	  var modifiers = {
  	    /**
  	     * Modifier used to shift the popper on the start or end of its reference
  	     * element.<br />
  	     * It will read the variation of the `placement` property.<br />
  	     * It can be one either `-end` or `-start`.
  	     * @memberof modifiers
  	     * @inner
  	     */
  	    shift: {
  	      /** @prop {number} order=100 - Index used to define the order of execution */
  	      order: 100,
  	      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
  	      enabled: true,
  	      /** @prop {ModifierFn} */
  	      fn: shift
  	    },
  
  	    /**
  	     * The `offset` modifier can shift your popper on both its axis.
  	     *
  	     * It accepts the following units:
  	     * - `px` or unitless, interpreted as pixels
  	     * - `%` or `%r`, percentage relative to the length of the reference element
  	     * - `%p`, percentage relative to the length of the popper element
  	     * - `vw`, CSS viewport width unit
  	     * - `vh`, CSS viewport height unit
  	     *
  	     * For length is intended the main axis relative to the placement of the popper.<br />
  	     * This means that if the placement is `top` or `bottom`, the length will be the
  	     * `width`. In case of `left` or `right`, it will be the height.
  	     *
  	     * You can provide a single value (as `Number` or `String`), or a pair of values
  	     * as `String` divided by a comma or one (or more) white spaces.<br />
  	     * The latter is a deprecated method because it leads to confusion and will be
  	     * removed in v2.<br />
  	     * Additionally, it accepts additions and subtractions between different units.
  	     * Note that multiplications and divisions aren't supported.
  	     *
  	     * Valid examples are:
  	     * ```
  	     * 10
  	     * '10%'
  	     * '10, 10'
  	     * '10%, 10'
  	     * '10 + 10%'
  	     * '10 - 5vh + 3%'
  	     * '-10px + 5vh, 5px - 6%'
  	     * ```
  	     *
  	     * @memberof modifiers
  	     * @inner
  	     */
  	    offset: {
  	      /** @prop {number} order=200 - Index used to define the order of execution */
  	      order: 200,
  	      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
  	      enabled: true,
  	      /** @prop {ModifierFn} */
  	      fn: offset,
  	      /** @prop {Number|String} offset=0
  	       * The offset value as described in the modifier description
  	       */
  	      offset: 0
  	    },
  
  	    /**
  	     * Modifier used to prevent the popper from being positioned outside the boundary.
  	     *
  	     * An scenario exists where the reference itself is not within the boundaries.<br />
  	     * We can say it has "escaped the boundaries" — or just "escaped".<br />
  	     * In this case we need to decide whether the popper should either:
  	     *
  	     * - detach from the reference and remain "trapped" in the boundaries, or
  	     * - if it should ignore the boundary and "escape with its reference"
  	     *
  	     * When `escapeWithReference` is set to`true` and reference is completely
  	     * outside its boundaries, the popper will overflow (or completely leave)
  	     * the boundaries in order to remain attached to the edge of the reference.
  	     *
  	     * @memberof modifiers
  	     * @inner
  	     */
  	    preventOverflow: {
  	      /** @prop {number} order=300 - Index used to define the order of execution */
  	      order: 300,
  	      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
  	      enabled: true,
  	      /** @prop {ModifierFn} */
  	      fn: preventOverflow,
  	      /**
  	       * @prop {Array} [priority=['left','right','top','bottom']]
  	       * Popper will try to prevent overflow following these priorities by default,
  	       * then, it could overflow on the left and on top of the `boundariesElement`
  	       */
  	      priority: ['left', 'right', 'top', 'bottom'],
  	      /**
  	       * @prop {number} padding=5
  	       * Amount of pixel used to define a minimum distance between the boundaries
  	       * and the popper this makes sure the popper has always a little padding
  	       * between the edges of its container
  	       */
  	      padding: 5,
  	      /**
  	       * @prop {String|HTMLElement} boundariesElement='scrollParent'
  	       * Boundaries used by the modifier, can be `scrollParent`, `window`,
  	       * `viewport` or any DOM element.
  	       */
  	      boundariesElement: 'scrollParent'
  	    },
  
  	    /**
  	     * Modifier used to make sure the reference and its popper stay near eachothers
  	     * without leaving any gap between the two. Expecially useful when the arrow is
  	     * enabled and you want to assure it to point to its reference element.
  	     * It cares only about the first axis, you can still have poppers with margin
  	     * between the popper and its reference element.
  	     * @memberof modifiers
  	     * @inner
  	     */
  	    keepTogether: {
  	      /** @prop {number} order=400 - Index used to define the order of execution */
  	      order: 400,
  	      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
  	      enabled: true,
  	      /** @prop {ModifierFn} */
  	      fn: keepTogether
  	    },
  
  	    /**
  	     * This modifier is used to move the `arrowElement` of the popper to make
  	     * sure it is positioned between the reference element and its popper element.
  	     * It will read the outer size of the `arrowElement` node to detect how many
  	     * pixels of conjuction are needed.
  	     *
  	     * It has no effect if no `arrowElement` is provided.
  	     * @memberof modifiers
  	     * @inner
  	     */
  	    arrow: {
  	      /** @prop {number} order=500 - Index used to define the order of execution */
  	      order: 500,
  	      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
  	      enabled: true,
  	      /** @prop {ModifierFn} */
  	      fn: arrow,
  	      /** @prop {String|HTMLElement} element='[x-arrow]' - Selector or node used as arrow */
  	      element: '[x-arrow]'
  	    },
  
  	    /**
  	     * Modifier used to flip the popper's placement when it starts to overlap its
  	     * reference element.
  	     *
  	     * Requires the `preventOverflow` modifier before it in order to work.
  	     *
  	     * **NOTE:** this modifier will interrupt the current update cycle and will
  	     * restart it if it detects the need to flip the placement.
  	     * @memberof modifiers
  	     * @inner
  	     */
  	    flip: {
  	      /** @prop {number} order=600 - Index used to define the order of execution */
  	      order: 600,
  	      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
  	      enabled: true,
  	      /** @prop {ModifierFn} */
  	      fn: flip,
  	      /**
  	       * @prop {String|Array} behavior='flip'
  	       * The behavior used to change the popper's placement. It can be one of
  	       * `flip`, `clockwise`, `counterclockwise` or an array with a list of valid
  	       * placements (with optional variations).
  	       */
  	      behavior: 'flip',
  	      /**
  	       * @prop {number} padding=5
  	       * The popper will flip if it hits the edges of the `boundariesElement`
  	       */
  	      padding: 5,
  	      /**
  	       * @prop {String|HTMLElement} boundariesElement='viewport'
  	       * The element which will define the boundaries of the popper position,
  	       * the popper will never be placed outside of the defined boundaries
  	       * (except if keepTogether is enabled)
  	       */
  	      boundariesElement: 'viewport'
  	    },
  
  	    /**
  	     * Modifier used to make the popper flow toward the inner of the reference element.
  	     * By default, when this modifier is disabled, the popper will be placed outside
  	     * the reference element.
  	     * @memberof modifiers
  	     * @inner
  	     */
  	    inner: {
  	      /** @prop {number} order=700 - Index used to define the order of execution */
  	      order: 700,
  	      /** @prop {Boolean} enabled=false - Whether the modifier is enabled or not */
  	      enabled: false,
  	      /** @prop {ModifierFn} */
  	      fn: inner
  	    },
  
  	    /**
  	     * Modifier used to hide the popper when its reference element is outside of the
  	     * popper boundaries. It will set a `x-out-of-boundaries` attribute which can
  	     * be used to hide with a CSS selector the popper when its reference is
  	     * out of boundaries.
  	     *
  	     * Requires the `preventOverflow` modifier before it in order to work.
  	     * @memberof modifiers
  	     * @inner
  	     */
  	    hide: {
  	      /** @prop {number} order=800 - Index used to define the order of execution */
  	      order: 800,
  	      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
  	      enabled: true,
  	      /** @prop {ModifierFn} */
  	      fn: hide
  	    },
  
  	    /**
  	     * Computes the style that will be applied to the popper element to gets
  	     * properly positioned.
  	     *
  	     * Note that this modifier will not touch the DOM, it just prepares the styles
  	     * so that `applyStyle` modifier can apply it. This separation is useful
  	     * in case you need to replace `applyStyle` with a custom implementation.
  	     *
  	     * This modifier has `850` as `order` value to maintain backward compatibility
  	     * with previous versions of Popper.js. Expect the modifiers ordering method
  	     * to change in future major versions of the library.
  	     *
  	     * @memberof modifiers
  	     * @inner
  	     */
  	    computeStyle: {
  	      /** @prop {number} order=850 - Index used to define the order of execution */
  	      order: 850,
  	      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
  	      enabled: true,
  	      /** @prop {ModifierFn} */
  	      fn: computeStyle,
  	      /**
  	       * @prop {Boolean} gpuAcceleration=true
  	       * If true, it uses the CSS 3d transformation to position the popper.
  	       * Otherwise, it will use the `top` and `left` properties.
  	       */
  	      gpuAcceleration: true,
  	      /**
  	       * @prop {string} [x='bottom']
  	       * Where to anchor the X axis (`bottom` or `top`). AKA X offset origin.
  	       * Change this if your popper should grow in a direction different from `bottom`
  	       */
  	      x: 'bottom',
  	      /**
  	       * @prop {string} [x='left']
  	       * Where to anchor the Y axis (`left` or `right`). AKA Y offset origin.
  	       * Change this if your popper should grow in a direction different from `right`
  	       */
  	      y: 'right'
  	    },
  
  	    /**
  	     * Applies the computed styles to the popper element.
  	     *
  	     * All the DOM manipulations are limited to this modifier. This is useful in case
  	     * you want to integrate Popper.js inside a framework or view library and you
  	     * want to delegate all the DOM manipulations to it.
  	     *
  	     * Note that if you disable this modifier, you must make sure the popper element
  	     * has its position set to `absolute` before Popper.js can do its work!
  	     *
  	     * Just disable this modifier and define you own to achieve the desired effect.
  	     *
  	     * @memberof modifiers
  	     * @inner
  	     */
  	    applyStyle: {
  	      /** @prop {number} order=900 - Index used to define the order of execution */
  	      order: 900,
  	      /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
  	      enabled: true,
  	      /** @prop {ModifierFn} */
  	      fn: applyStyle,
  	      /** @prop {Function} */
  	      onLoad: applyStyleOnLoad,
  	      /**
  	       * @deprecated since version 1.10.0, the property moved to `computeStyle` modifier
  	       * @prop {Boolean} gpuAcceleration=true
  	       * If true, it uses the CSS 3d transformation to position the popper.
  	       * Otherwise, it will use the `top` and `left` properties.
  	       */
  	      gpuAcceleration: undefined
  	    }
  	  };
  
  	  /**
  	   * The `dataObject` is an object containing all the informations used by Popper.js
  	   * this object get passed to modifiers and to the `onCreate` and `onUpdate` callbacks.
  	   * @name dataObject
  	   * @property {Object} data.instance The Popper.js instance
  	   * @property {String} data.placement Placement applied to popper
  	   * @property {String} data.originalPlacement Placement originally defined on init
  	   * @property {Boolean} data.flipped True if popper has been flipped by flip modifier
  	   * @property {Boolean} data.hide True if the reference element is out of boundaries, useful to know when to hide the popper.
  	   * @property {HTMLElement} data.arrowElement Node used as arrow by arrow modifier
  	   * @property {Object} data.styles Any CSS property defined here will be applied to the popper, it expects the JavaScript nomenclature (eg. `marginBottom`)
  	   * @property {Object} data.boundaries Offsets of the popper boundaries
  	   * @property {Object} data.offsets The measurements of popper, reference and arrow elements.
  	   * @property {Object} data.offsets.popper `top`, `left`, `width`, `height` values
  	   * @property {Object} data.offsets.reference `top`, `left`, `width`, `height` values
  	   * @property {Object} data.offsets.arrow] `top` and `left` offsets, only one of them will be different from 0
  	   */
  
  	  /**
  	   * Default options provided to Popper.js constructor.<br />
  	   * These can be overriden using the `options` argument of Popper.js.<br />
  	   * To override an option, simply pass as 3rd argument an object with the same
  	   * structure of this object, example:
  	   * ```
  	   * new Popper(ref, pop, {
  	   *   modifiers: {
  	   *     preventOverflow: { enabled: false }
  	   *   }
  	   * })
  	   * ```
  	   * @type {Object}
  	   * @static
  	   * @memberof Popper
  	   */
  	  var Defaults = {
  	    /**
  	     * Popper's placement
  	     * @prop {Popper.placements} placement='bottom'
  	     */
  	    placement: 'bottom',
  
  	    /**
  	     * Whether events (resize, scroll) are initially enabled
  	     * @prop {Boolean} eventsEnabled=true
  	     */
  	    eventsEnabled: true,
  
  	    /**
  	     * Set to true if you want to automatically remove the popper when
  	     * you call the `destroy` method.
  	     * @prop {Boolean} removeOnDestroy=false
  	     */
  	    removeOnDestroy: false,
  
  	    /**
  	     * Callback called when the popper is created.<br />
  	     * By default, is set to no-op.<br />
  	     * Access Popper.js instance with `data.instance`.
  	     * @prop {onCreate}
  	     */
  	    onCreate: function onCreate() {},
  
  	    /**
  	     * Callback called when the popper is updated, this callback is not called
  	     * on the initialization/creation of the popper, but only on subsequent
  	     * updates.<br />
  	     * By default, is set to no-op.<br />
  	     * Access Popper.js instance with `data.instance`.
  	     * @prop {onUpdate}
  	     */
  	    onUpdate: function onUpdate() {},
  
  	    /**
  	     * List of modifiers used to modify the offsets before they are applied to the popper.
  	     * They provide most of the functionalities of Popper.js
  	     * @prop {modifiers}
  	     */
  	    modifiers: modifiers
  	  };
  
  	  /**
  	   * @callback onCreate
  	   * @param {dataObject} data
  	   */
  
  	  /**
  	   * @callback onUpdate
  	   * @param {dataObject} data
  	   */
  
  	  // Utils
  	  // Methods
  	  var Popper = function () {
  	    /**
  	     * Create a new Popper.js instance
  	     * @class Popper
  	     * @param {HTMLElement|referenceObject} reference - The reference element used to position the popper
  	     * @param {HTMLElement} popper - The HTML element used as popper.
  	     * @param {Object} options - Your custom options to override the ones defined in [Defaults](#defaults)
  	     * @return {Object} instance - The generated Popper.js instance
  	     */
  	    function Popper(reference, popper) {
  	      var _this = this;
  
  	      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
  	      classCallCheck(this, Popper);
  
  	      this.scheduleUpdate = function () {
  	        return requestAnimationFrame(_this.update);
  	      };
  
  	      // make update() debounced, so that it only runs at most once-per-tick
  	      this.update = debounce(this.update.bind(this));
  
  	      // with {} we create a new object with the options inside it
  	      this.options = _extends({}, Popper.Defaults, options);
  
  	      // init state
  	      this.state = {
  	        isDestroyed: false,
  	        isCreated: false,
  	        scrollParents: []
  	      };
  
  	      // get reference and popper elements (allow jQuery wrappers)
  	      this.reference = reference.jquery ? reference[0] : reference;
  	      this.popper = popper.jquery ? popper[0] : popper;
  
  	      // Deep merge modifiers options
  	      this.options.modifiers = {};
  	      Object.keys(_extends({}, Popper.Defaults.modifiers, options.modifiers)).forEach(function (name) {
  	        _this.options.modifiers[name] = _extends({}, Popper.Defaults.modifiers[name] || {}, options.modifiers ? options.modifiers[name] : {});
  	      });
  
  	      // Refactoring modifiers' list (Object => Array)
  	      this.modifiers = Object.keys(this.options.modifiers).map(function (name) {
  	        return _extends({
  	          name: name
  	        }, _this.options.modifiers[name]);
  	      })
  	      // sort the modifiers by order
  	      .sort(function (a, b) {
  	        return a.order - b.order;
  	      });
  
  	      // modifiers have the ability to execute arbitrary code when Popper.js get inited
  	      // such code is executed in the same order of its modifier
  	      // they could add new properties to their options configuration
  	      // BE AWARE: don't add options to `options.modifiers.name` but to `modifierOptions`!
  	      this.modifiers.forEach(function (modifierOptions) {
  	        if (modifierOptions.enabled && isFunction(modifierOptions.onLoad)) {
  	          modifierOptions.onLoad(_this.reference, _this.popper, _this.options, modifierOptions, _this.state);
  	        }
  	      });
  
  	      // fire the first update to position the popper in the right place
  	      this.update();
  
  	      var eventsEnabled = this.options.eventsEnabled;
  	      if (eventsEnabled) {
  	        // setup event listeners, they will take care of update the position in specific situations
  	        this.enableEventListeners();
  	      }
  
  	      this.state.eventsEnabled = eventsEnabled;
  	    }
  
  	    // We can't use class properties because they don't get listed in the
  	    // class prototype and break stuff like Sinon stubs
  
  
  	    createClass(Popper, [{
  	      key: 'update',
  	      value: function update$$1() {
  	        return update.call(this);
  	      }
  	    }, {
  	      key: 'destroy',
  	      value: function destroy$$1() {
  	        return destroy.call(this);
  	      }
  	    }, {
  	      key: 'enableEventListeners',
  	      value: function enableEventListeners$$1() {
  	        return enableEventListeners.call(this);
  	      }
  	    }, {
  	      key: 'disableEventListeners',
  	      value: function disableEventListeners$$1() {
  	        return disableEventListeners.call(this);
  	      }
  
  	      /**
  	       * Schedule an update, it will run on the next UI update available
  	       * @method scheduleUpdate
  	       * @memberof Popper
  	       */
  
  	      /**
  	       * Collection of utilities useful when writing custom modifiers.
  	       * Starting from version 1.7, this method is available only if you
  	       * include `popper-utils.js` before `popper.js`.
  	       *
  	       * **DEPRECATION**: This way to access PopperUtils is deprecated
  	       * and will be removed in v2! Use the PopperUtils module directly instead.
  	       * Due to the high instability of the methods contained in Utils, we can't
  	       * guarantee them to follow semver. Use them at your own risk!
  	       * @static
  	       * @private
  	       * @type {Object}
  	       * @deprecated since version 1.8
  	       * @member Utils
  	       * @memberof Popper
  	       */
  
  	    }]);
  	    return Popper;
  	  }();
  
  	  /**
  	   * The `referenceObject` is an object that provides an interface compatible with Popper.js
  	   * and lets you use it as replacement of a real DOM node.<br />
  	   * You can use this method to position a popper relatively to a set of coordinates
  	   * in case you don't have a DOM node to use as reference.
  	   *
  	   * ```
  	   * new Popper(referenceObject, popperNode);
  	   * ```
  	   *
  	   * NB: This feature isn't supported in Internet Explorer 10
  	   * @name referenceObject
  	   * @property {Function} data.getBoundingClientRect
  	   * A function that returns a set of coordinates compatible with the native `getBoundingClientRect` method.
  	   * @property {number} data.clientWidth
  	   * An ES6 getter that will return the width of the virtual reference element.
  	   * @property {number} data.clientHeight
  	   * An ES6 getter that will return the height of the virtual reference element.
  	   */
  
  	  Popper.Utils = (typeof window !== 'undefined' ? window : global).PopperUtils;
  	  Popper.placements = placements;
  	  Popper.Defaults = Defaults;
  
  	  return Popper;
  	});
  	//# sourceMappingURL=popper.js.map
  	/* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }())))
  
  /***/ }),
  /* 7 */
  /***/ (function(module, exports, __webpack_require__) {
  
  	/*!
  	 * is-equal-shallow <https://github.com/jonschlinkert/is-equal-shallow>
  	 *
  	 * Copyright (c) 2015, Jon Schlinkert.
  	 * Licensed under the MIT License.
  	 */
  
  	'use strict';
  
  	var isPrimitive = __webpack_require__(8);
  
  	module.exports = function isEqual(a, b) {
  	  if (!a && !b) {
  	    return true;
  	  }
  	  if (!a && b || a && !b) {
  	    return false;
  	  }
  
  	  var numKeysA = 0,
  	      numKeysB = 0,
  	      key;
  	  for (key in b) {
  	    numKeysB++;
  	    if (!isPrimitive(b[key]) || !a.hasOwnProperty(key) || a[key] !== b[key]) {
  	      return false;
  	    }
  	  }
  	  for (key in a) {
  	    numKeysA++;
  	  }
  	  return numKeysA === numKeysB;
  	};
  
  /***/ }),
  /* 8 */
  /***/ (function(module, exports) {
  
  	/*!
  	 * is-primitive <https://github.com/jonschlinkert/is-primitive>
  	 *
  	 * Copyright (c) 2014-2015, Jon Schlinkert.
  	 * Licensed under the MIT License.
  	 */
  
  	'use strict';
  
  	// see http://jsperf.com/testing-value-is-primitive/7
  
  	var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
  
  	module.exports = function isPrimitive(value) {
  	  return value == null || typeof value !== 'function' && (typeof value === 'undefined' ? 'undefined' : _typeof(value)) !== 'object';
  	};
  
  /***/ }),
  /* 9 */
  /***/ (function(module, exports, __webpack_require__) {
  
  	'use strict';
  
  	Object.defineProperty(exports, "__esModule", {
  	  value: true
  	});
  
  	var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
  
  	var _react = __webpack_require__(2);
  
  	var _react2 = _interopRequireDefault(_react);
  
  	var _propTypes = __webpack_require__(3);
  
  	var _propTypes2 = _interopRequireDefault(_propTypes);
  
  	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  	function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }
  
  	var Arrow = function Arrow(props, context) {
  	  var _props$component = props.component,
  	      component = _props$component === undefined ? 'span' : _props$component,
  	      innerRef = props.innerRef,
  	      children = props.children,
  	      restProps = _objectWithoutProperties(props, ['component', 'innerRef', 'children']);
  
  	  var popper = context.popper;
  
  	  var arrowRef = function arrowRef(node) {
  	    popper.setArrowNode(node);
  	    if (typeof innerRef === 'function') {
  	      innerRef(node);
  	    }
  	  };
  	  var arrowStyle = popper.getArrowStyle();
  
  	  if (typeof children === 'function') {
  	    var arrowProps = {
  	      ref: arrowRef,
  	      style: arrowStyle
  	    };
  	    return children({ arrowProps: arrowProps, restProps: restProps });
  	  }
  
  	  var componentProps = _extends({}, restProps, {
  	    style: _extends({}, arrowStyle, restProps.style)
  	  });
  
  	  if (typeof component === 'string') {
  	    componentProps.ref = arrowRef;
  	  } else {
  	    componentProps.innerRef = arrowRef;
  	  }
  
  	  return (0, _react.createElement)(component, componentProps, children);
  	};
  
  	Arrow.contextTypes = {
  	  popper: _propTypes2.default.object.isRequired
  	};
  
  	Arrow.propTypes = {
  	  component: _propTypes2.default.oneOfType([_propTypes2.default.node, _propTypes2.default.func]),
  	  innerRef: _propTypes2.default.func,
  	  children: _propTypes2.default.oneOfType([_propTypes2.default.node, _propTypes2.default.func])
  	};
  
  	exports.default = Arrow;
  
  /***/ })
  /******/ ])
  });
  ;