diff --git a/src/js/jquery.select2.js b/src/js/jquery.select2.js
index 35ead004..9136ff78 100644
--- a/src/js/jquery.select2.js
+++ b/src/js/jquery.select2.js
@@ -1,58 +1,58 @@
-define([
-  'jquery',
-  'jquery-mousewheel',
-
-  './select2/core',
-  './select2/defaults',
-  './select2/utils'
-], function ($, _, Select2, Defaults, Utils) {
-  if ($.fn.select2 == null) {
-    // All methods that should return the element
-    var thisMethods = ['open', 'close', 'destroy'];
-
-    $.fn.select2 = function (options) {
-      options = options || {};
-
-      if (typeof options === 'object') {
-        this.each(function () {
-          var instanceOptions = $.extend(true, {}, options);
-
-          var instance = new Select2($(this), instanceOptions);
-        });
-
-        return this;
-      } else if (typeof options === 'string') {
-        var ret;
-        var args = Array.prototype.slice.call(arguments, 1);
-
-        this.each(function () {
-          var instance = Utils.GetData(this, 'select2');
-
-          if (instance == null && window.console && console.error) {
-            console.error(
-              'The select2(\'' + options + '\') method was called on an ' +
-              'element that is not using Select2.'
-            );
-          }
-
-          ret = instance[options].apply(instance, args);
-        });
-
-        // Check if we should be returning `this`
-        if ($.inArray(options, thisMethods) > -1) {
-          return this;
-        }
-
-        return ret;
-      } else {
-        throw new Error('Invalid arguments for Select2: ' + options);
-      }
-    };
-  }
-
-  if ($.fn.select2.defaults == null) {
-    $.fn.select2.defaults = Defaults;
-  }
-
-  return Select2;
-});
+define([
+  'jquery',
+  'jquery-mousewheel',
+
+  './select2/core',
+  './select2/defaults',
+  './select2/utils'
+], function ($, _, Select2, Defaults, Utils) {
+  if ($.fn.select2 == null) {
+    // All methods that should return the element
+    var thisMethods = ['open', 'close', 'destroy'];
+
+    $.fn.select2 = function (options) {
+      options = options || {};
+
+      if (typeof options === 'object') {
+        this.each(function () {
+          var instanceOptions = $.extend(true, {}, options);
+
+          var instance = new Select2($(this), instanceOptions);
+        });
+
+        return this;
+      } else if (typeof options === 'string') {
+        var ret;
+        var args = Array.prototype.slice.call(arguments, 1);
+
+        this.each(function () {
+          var instance = Utils.GetData(this, 'select2');
+
+          if (instance == null && window.console && console.error) {
+            console.error(
+              'The select2(\'' + options + '\') method was called on an ' +
+              'element that is not using Select2.'
+            );
+          }
+
+          ret = instance[options].apply(instance, args);
+        });
+
+        // Check if we should be returning `this`
+        if ($.inArray(options, thisMethods) > -1) {
+          return this;
+        }
+
+        return ret;
+      } else {
+        throw new Error('Invalid arguments for Select2: ' + options);
+      }
+    };
+  }
+
+  if ($.fn.select2.defaults == null) {
+    $.fn.select2.defaults = Defaults;
+  }
+
+  return Select2;
+});
diff --git a/src/js/select2/core.js b/src/js/select2/core.js
index 3ac9d9a3..8c539d12 100644
--- a/src/js/select2/core.js
+++ b/src/js/select2/core.js
@@ -1,551 +1,551 @@
-define([
-  'jquery',
-  './options',
-  './utils',
-  './keys'
-], function ($, Options, Utils, KEYS) {
-  var Select2 = function ($element, options) {
-    if (Utils.GetData($element[0], 'select2') != null) {
-        Utils.GetData($element[0], 'select2').destroy();
-    }
-
-    this.$element = $element;
-
-    this.id = this._generateId($element);
-
-    options = options || {};
-
-    this.options = new Options(options, $element);
-
-    Select2.__super__.constructor.call(this);
-
-    // Set up the tabindex
-
-    var tabindex = $element.attr('tabindex') || 0;
-    Utils.StoreData($element[0], 'old-tabindex', tabindex);
-    $element.attr('tabindex', '-1');
-
-    // Set up containers and adapters
-
-    var DataAdapter = this.options.get('dataAdapter');
-    this.dataAdapter = new DataAdapter($element, this.options);
-
-    var $container = this.render();
-
-    this._placeContainer($container);
-
-    var SelectionAdapter = this.options.get('selectionAdapter');
-    this.selection = new SelectionAdapter($element, this.options);
-    this.$selection = this.selection.render();
-
-    this.selection.position(this.$selection, $container);
-
-    var DropdownAdapter = this.options.get('dropdownAdapter');
-    this.dropdown = new DropdownAdapter($element, this.options);
-    this.$dropdown = this.dropdown.render();
-
-    this.dropdown.position(this.$dropdown, $container);
-
-    var ResultsAdapter = this.options.get('resultsAdapter');
-    this.results = new ResultsAdapter($element, this.options, this.dataAdapter);
-    this.$results = this.results.render();
-
-    this.results.position(this.$results, this.$dropdown);
-
-    // Bind events
-
-    var self = this;
-
-    // Bind the container to all of the adapters
-    this._bindAdapters();
-
-    // Register any DOM event handlers
-    this._registerDomEvents();
-
-    // Register any internal event handlers
-    this._registerDataEvents();
-    this._registerSelectionEvents();
-    this._registerDropdownEvents();
-    this._registerResultsEvents();
-    this._registerEvents();
-
-    // Set the initial state
-    this.dataAdapter.current(function (initialData) {
-      self.trigger('selection:update', {
-        data: initialData
-      });
-    });
-
-    // Hide the original select
-    $element.addClass('select2-hidden-accessible');
-    $element.attr('aria-hidden', 'true');
-
-    // Synchronize any monitored attributes
-    this._syncAttributes();
-
-    Utils.StoreData($element[0], 'select2', this);
-  };
-
-  Utils.Extend(Select2, Utils.Observable);
-
-  Select2.prototype._generateId = function ($element) {
-    var id = '';
-
-    if ($element.attr('id') != null) {
-      id = $element.attr('id');
-    } else if ($element.attr('name') != null) {
-      id = $element.attr('name') + '-' + Utils.generateChars(2);
-    } else {
-      id = Utils.generateChars(4);
-    }
-
-    id = id.replace(/(:|\.|\[|\]|,)/g, '');
-    id = 'select2-' + id;
-
-    return id;
-  };
-
-  Select2.prototype._placeContainer = function ($container) {
-    $container.insertAfter(this.$element);
-
-    var width = this._resolveWidth(this.$element, this.options.get('width'));
-
-    if (width != null) {
-      $container.css('width', width);
-    }
-  };
-
-  Select2.prototype._resolveWidth = function ($element, method) {
-    var WIDTH = /^width:(([-+]?([0-9]*\.)?[0-9]+)(px|em|ex|%|in|cm|mm|pt|pc))/i;
-
-    if (method == 'resolve') {
-      var styleWidth = this._resolveWidth($element, 'style');
-
-      if (styleWidth != null) {
-        return styleWidth;
-      }
-
-      return this._resolveWidth($element, 'element');
-    }
-
-    if (method == 'element') {
-      var elementWidth = $element.outerWidth(false);
-
-      if (elementWidth <= 0) {
-        return 'auto';
-      }
-
-      return elementWidth + 'px';
-    }
-
-    if (method == 'style') {
-      var style = $element.attr('style');
-
-      if (typeof(style) !== 'string') {
-        return null;
-      }
-
-      var attrs = style.split(';');
-
-      for (var i = 0, l = attrs.length; i < l; i = i + 1) {
-        var attr = attrs[i].replace(/\s/g, '');
-        var matches = attr.match(WIDTH);
-
-        if (matches !== null && matches.length >= 1) {
-          return matches[1];
-        }
-      }
-
-      return null;
-    }
-
-    return method;
-  };
-
-  Select2.prototype._bindAdapters = function () {
-    this.dataAdapter.bind(this, this.$container);
-    this.selection.bind(this, this.$container);
-
-    this.dropdown.bind(this, this.$container);
-    this.results.bind(this, this.$container);
-  };
-
-  Select2.prototype._registerDomEvents = function () {
-    var self = this;
-
-    this.$element.on('change.select2', function () {
-      self.dataAdapter.current(function (data) {
-        self.trigger('selection:update', {
-          data: data
-        });
-      });
-    });
-
-    this.$element.on('focus.select2', function (evt) {
-      self.trigger('focus', evt);
-    });
-
-    this._sync = Utils.bind(this._syncAttributes, this);
-
-    if (this.$element[0].attachEvent) {
-      this.$element[0].attachEvent('onpropertychange', this._sync);
-    }
-
-    var observer = window.MutationObserver ||
-      window.WebKitMutationObserver ||
-      window.MozMutationObserver
-    ;
-
-    if (observer != null) {
-      this._observer = new observer(function (mutations) {
-        $.each(mutations, self._sync);
-      });
-      this._observer.observe(this.$element[0], {
-        attributes: true,
-        subtree: false
-      });
-    } else if (this.$element[0].addEventListener) {
-      this.$element[0].addEventListener('DOMAttrModified', self._sync, false);
-    }
-  };
-
-  Select2.prototype._registerDataEvents = function () {
-    var self = this;
-
-    this.dataAdapter.on('*', function (name, params) {
-      self.trigger(name, params);
-    });
-  };
-
-  Select2.prototype._registerSelectionEvents = function () {
-    var self = this;
-    var nonRelayEvents = ['toggle', 'focus'];
-
-    this.selection.on('toggle', function () {
-      self.toggleDropdown();
-    });
-
-    this.selection.on('focus', function (params) {
-      self.focus(params);
-    });
-
-    this.selection.on('*', function (name, params) {
-      if ($.inArray(name, nonRelayEvents) !== -1) {
-        return;
-      }
-
-      self.trigger(name, params);
-    });
-  };
-
-  Select2.prototype._registerDropdownEvents = function () {
-    var self = this;
-
-    this.dropdown.on('*', function (name, params) {
-      self.trigger(name, params);
-    });
-  };
-
-  Select2.prototype._registerResultsEvents = function () {
-    var self = this;
-
-    this.results.on('*', function (name, params) {
-      self.trigger(name, params);
-    });
-  };
-
-  Select2.prototype._registerEvents = function () {
-    var self = this;
-
-    this.on('open', function () {
-      self.$container.addClass('select2-container--open');
-    });
-
-    this.on('close', function () {
-      self.$container.removeClass('select2-container--open');
-    });
-
-    this.on('enable', function () {
-      self.$container.removeClass('select2-container--disabled');
-    });
-
-    this.on('disable', function () {
-      self.$container.addClass('select2-container--disabled');
-    });
-
-    this.on('blur', function () {
-      self.$container.removeClass('select2-container--focus');
-    });
-
-    this.on('query', function (params) {
-      if (!self.isOpen()) {
-        self.trigger('open', {});
-      }
-
-      this.dataAdapter.query(params, function (data) {
-        self.trigger('results:all', {
-          data: data,
-          query: params
-        });
-      });
-    });
-
-    this.on('query:append', function (params) {
-      this.dataAdapter.query(params, function (data) {
-        self.trigger('results:append', {
-          data: data,
-          query: params
-        });
-      });
-    });
-
-    this.on('keypress', function (evt) {
-      var key = evt.which;
-
-      if (self.isOpen()) {
-        if (key === KEYS.ESC || key === KEYS.TAB ||
-            (key === KEYS.UP && evt.altKey)) {
-          self.close();
-
-          evt.preventDefault();
-        } else if (key === KEYS.ENTER) {
-          self.trigger('results:select', {});
-
-          evt.preventDefault();
-        } else if ((key === KEYS.SPACE && evt.ctrlKey)) {
-          self.trigger('results:toggle', {});
-
-          evt.preventDefault();
-        } else if (key === KEYS.UP) {
-          self.trigger('results:previous', {});
-
-          evt.preventDefault();
-        } else if (key === KEYS.DOWN) {
-          self.trigger('results:next', {});
-
-          evt.preventDefault();
-        }
-      } else {
-        if (key === KEYS.ENTER || key === KEYS.SPACE ||
-            (key === KEYS.DOWN && evt.altKey)) {
-          self.open();
-
-          evt.preventDefault();
-        }
-      }
-    });
-  };
-
-  Select2.prototype._syncAttributes = function () {
-    this.options.set('disabled', this.$element.prop('disabled'));
-
-    if (this.options.get('disabled')) {
-      if (this.isOpen()) {
-        this.close();
-      }
-
-      this.trigger('disable', {});
-    } else {
-      this.trigger('enable', {});
-    }
-  };
-
-  /**
-   * Override the trigger method to automatically trigger pre-events when
-   * there are events that can be prevented.
-   */
-  Select2.prototype.trigger = function (name, args) {
-    var actualTrigger = Select2.__super__.trigger;
-    var preTriggerMap = {
-      'open': 'opening',
-      'close': 'closing',
-      'select': 'selecting',
-      'unselect': 'unselecting'
-    };
-
-    if (args === undefined) {
-      args = {};
-    }
-
-    if (name in preTriggerMap) {
-      var preTriggerName = preTriggerMap[name];
-      var preTriggerArgs = {
-        prevented: false,
-        name: name,
-        args: args
-      };
-
-      actualTrigger.call(this, preTriggerName, preTriggerArgs);
-
-      if (preTriggerArgs.prevented) {
-        args.prevented = true;
-
-        return;
-      }
-    }
-
-    actualTrigger.call(this, name, args);
-  };
-
-  Select2.prototype.toggleDropdown = function () {
-    if (this.options.get('disabled')) {
-      return;
-    }
-
-    if (this.isOpen()) {
-      this.close();
-    } else {
-      this.open();
-    }
-  };
-
-  Select2.prototype.open = function () {
-    if (this.isOpen()) {
-      return;
-    }
-
-    this.trigger('query', {});
-  };
-
-  Select2.prototype.close = function () {
-    if (!this.isOpen()) {
-      return;
-    }
-
-    this.trigger('close', {});
-  };
-
-  Select2.prototype.isOpen = function () {
-    return this.$container.hasClass('select2-container--open');
-  };
-
-  Select2.prototype.hasFocus = function () {
-    return this.$container.hasClass('select2-container--focus');
-  };
-
-  Select2.prototype.focus = function (data) {
-    // No need to re-trigger focus events if we are already focused
-    if (this.hasFocus()) {
-      return;
-    }
-
-    this.$container.addClass('select2-container--focus');
-    this.trigger('focus', {});
-  };
-
-  Select2.prototype.enable = function (args) {
-    if (this.options.get('debug') && window.console && console.warn) {
-      console.warn(
-        'Select2: The `select2("enable")` method has been deprecated and will' +
-        ' be removed in later Select2 versions. Use $element.prop("disabled")' +
-        ' instead.'
-      );
-    }
-
-    if (args == null || args.length === 0) {
-      args = [true];
-    }
-
-    var disabled = !args[0];
-
-    this.$element.prop('disabled', disabled);
-  };
-
-  Select2.prototype.data = function () {
-    if (this.options.get('debug') &&
-        arguments.length > 0 && window.console && console.warn) {
-      console.warn(
-        'Select2: Data can no longer be set using `select2("data")`. You ' +
-        'should consider setting the value instead using `$element.val()`.'
-      );
-    }
-
-    var data = [];
-
-    this.dataAdapter.current(function (currentData) {
-      data = currentData;
-    });
-
-    return data;
-  };
-
-  Select2.prototype.val = function (args) {
-    if (this.options.get('debug') && window.console && console.warn) {
-      console.warn(
-        'Select2: The `select2("val")` method has been deprecated and will be' +
-        ' removed in later Select2 versions. Use $element.val() instead.'
-      );
-    }
-
-    if (args == null || args.length === 0) {
-      return this.$element.val();
-    }
-
-    var newVal = args[0];
-
-    if ($.isArray(newVal)) {
-      newVal = $.map(newVal, function (obj) {
-        return obj.toString();
-      });
-    }
-
-    this.$element.val(newVal).trigger('change');
-  };
-
-  Select2.prototype.destroy = function () {
-    this.$container.remove();
-
-    if (this.$element[0].detachEvent) {
-      this.$element[0].detachEvent('onpropertychange', this._sync);
-    }
-
-    if (this._observer != null) {
-      this._observer.disconnect();
-      this._observer = null;
-    } else if (this.$element[0].removeEventListener) {
-      this.$element[0]
-        .removeEventListener('DOMAttrModified', this._sync, false);
-    }
-
-    this._sync = null;
-
-    this.$element.off('.select2');
-    this.$element.attr('tabindex', 
-    Utils.GetData(this.$element[0], 'old-tabindex'));
-
-    this.$element.removeClass('select2-hidden-accessible');
-    this.$element.attr('aria-hidden', 'false');
-    Utils.RemoveData(this.$element[0]);
-
-    this.dataAdapter.destroy();
-    this.selection.destroy();
-    this.dropdown.destroy();
-    this.results.destroy();
-
-    this.dataAdapter = null;
-    this.selection = null;
-    this.dropdown = null;
-    this.results = null;
-  };
-
-  Select2.prototype.render = function () {
-    var $container = $(
-      '<span class="select2 select2-container">' +
-        '<span class="selection"></span>' +
-        '<span class="dropdown-wrapper" aria-hidden="true"></span>' +
-      '</span>'
-    );
-
-    $container.attr('dir', this.options.get('dir'));
-
-    this.$container = $container;
-
-    this.$container.addClass('select2-container--' + this.options.get('theme'));
-
-    Utils.StoreData($container[0], 'element', this.$element);
-
-    return $container;
-  };
-
-  return Select2;
-});
+define([
+  'jquery',
+  './options',
+  './utils',
+  './keys'
+], function ($, Options, Utils, KEYS) {
+  var Select2 = function ($element, options) {
+    if (Utils.GetData($element[0], 'select2') != null) {
+        Utils.GetData($element[0], 'select2').destroy();
+    }
+
+    this.$element = $element;
+
+    this.id = this._generateId($element);
+
+    options = options || {};
+
+    this.options = new Options(options, $element);
+
+    Select2.__super__.constructor.call(this);
+
+    // Set up the tabindex
+
+    var tabindex = $element.attr('tabindex') || 0;
+    Utils.StoreData($element[0], 'old-tabindex', tabindex);
+    $element.attr('tabindex', '-1');
+
+    // Set up containers and adapters
+
+    var DataAdapter = this.options.get('dataAdapter');
+    this.dataAdapter = new DataAdapter($element, this.options);
+
+    var $container = this.render();
+
+    this._placeContainer($container);
+
+    var SelectionAdapter = this.options.get('selectionAdapter');
+    this.selection = new SelectionAdapter($element, this.options);
+    this.$selection = this.selection.render();
+
+    this.selection.position(this.$selection, $container);
+
+    var DropdownAdapter = this.options.get('dropdownAdapter');
+    this.dropdown = new DropdownAdapter($element, this.options);
+    this.$dropdown = this.dropdown.render();
+
+    this.dropdown.position(this.$dropdown, $container);
+
+    var ResultsAdapter = this.options.get('resultsAdapter');
+    this.results = new ResultsAdapter($element, this.options, this.dataAdapter);
+    this.$results = this.results.render();
+
+    this.results.position(this.$results, this.$dropdown);
+
+    // Bind events
+
+    var self = this;
+
+    // Bind the container to all of the adapters
+    this._bindAdapters();
+
+    // Register any DOM event handlers
+    this._registerDomEvents();
+
+    // Register any internal event handlers
+    this._registerDataEvents();
+    this._registerSelectionEvents();
+    this._registerDropdownEvents();
+    this._registerResultsEvents();
+    this._registerEvents();
+
+    // Set the initial state
+    this.dataAdapter.current(function (initialData) {
+      self.trigger('selection:update', {
+        data: initialData
+      });
+    });
+
+    // Hide the original select
+    $element.addClass('select2-hidden-accessible');
+    $element.attr('aria-hidden', 'true');
+
+    // Synchronize any monitored attributes
+    this._syncAttributes();
+
+    Utils.StoreData($element[0], 'select2', this);
+  };
+
+  Utils.Extend(Select2, Utils.Observable);
+
+  Select2.prototype._generateId = function ($element) {
+    var id = '';
+
+    if ($element.attr('id') != null) {
+      id = $element.attr('id');
+    } else if ($element.attr('name') != null) {
+      id = $element.attr('name') + '-' + Utils.generateChars(2);
+    } else {
+      id = Utils.generateChars(4);
+    }
+
+    id = id.replace(/(:|\.|\[|\]|,)/g, '');
+    id = 'select2-' + id;
+
+    return id;
+  };
+
+  Select2.prototype._placeContainer = function ($container) {
+    $container.insertAfter(this.$element);
+
+    var width = this._resolveWidth(this.$element, this.options.get('width'));
+
+    if (width != null) {
+      $container.css('width', width);
+    }
+  };
+
+  Select2.prototype._resolveWidth = function ($element, method) {
+    var WIDTH = /^width:(([-+]?([0-9]*\.)?[0-9]+)(px|em|ex|%|in|cm|mm|pt|pc))/i;
+
+    if (method == 'resolve') {
+      var styleWidth = this._resolveWidth($element, 'style');
+
+      if (styleWidth != null) {
+        return styleWidth;
+      }
+
+      return this._resolveWidth($element, 'element');
+    }
+
+    if (method == 'element') {
+      var elementWidth = $element.outerWidth(false);
+
+      if (elementWidth <= 0) {
+        return 'auto';
+      }
+
+      return elementWidth + 'px';
+    }
+
+    if (method == 'style') {
+      var style = $element.attr('style');
+
+      if (typeof(style) !== 'string') {
+        return null;
+      }
+
+      var attrs = style.split(';');
+
+      for (var i = 0, l = attrs.length; i < l; i = i + 1) {
+        var attr = attrs[i].replace(/\s/g, '');
+        var matches = attr.match(WIDTH);
+
+        if (matches !== null && matches.length >= 1) {
+          return matches[1];
+        }
+      }
+
+      return null;
+    }
+
+    return method;
+  };
+
+  Select2.prototype._bindAdapters = function () {
+    this.dataAdapter.bind(this, this.$container);
+    this.selection.bind(this, this.$container);
+
+    this.dropdown.bind(this, this.$container);
+    this.results.bind(this, this.$container);
+  };
+
+  Select2.prototype._registerDomEvents = function () {
+    var self = this;
+
+    this.$element.on('change.select2', function () {
+      self.dataAdapter.current(function (data) {
+        self.trigger('selection:update', {
+          data: data
+        });
+      });
+    });
+
+    this.$element.on('focus.select2', function (evt) {
+      self.trigger('focus', evt);
+    });
+
+    this._sync = Utils.bind(this._syncAttributes, this);
+
+    if (this.$element[0].attachEvent) {
+      this.$element[0].attachEvent('onpropertychange', this._sync);
+    }
+
+    var observer = window.MutationObserver ||
+      window.WebKitMutationObserver ||
+      window.MozMutationObserver
+    ;
+
+    if (observer != null) {
+      this._observer = new observer(function (mutations) {
+        $.each(mutations, self._sync);
+      });
+      this._observer.observe(this.$element[0], {
+        attributes: true,
+        subtree: false
+      });
+    } else if (this.$element[0].addEventListener) {
+      this.$element[0].addEventListener('DOMAttrModified', self._sync, false);
+    }
+  };
+
+  Select2.prototype._registerDataEvents = function () {
+    var self = this;
+
+    this.dataAdapter.on('*', function (name, params) {
+      self.trigger(name, params);
+    });
+  };
+
+  Select2.prototype._registerSelectionEvents = function () {
+    var self = this;
+    var nonRelayEvents = ['toggle', 'focus'];
+
+    this.selection.on('toggle', function () {
+      self.toggleDropdown();
+    });
+
+    this.selection.on('focus', function (params) {
+      self.focus(params);
+    });
+
+    this.selection.on('*', function (name, params) {
+      if ($.inArray(name, nonRelayEvents) !== -1) {
+        return;
+      }
+
+      self.trigger(name, params);
+    });
+  };
+
+  Select2.prototype._registerDropdownEvents = function () {
+    var self = this;
+
+    this.dropdown.on('*', function (name, params) {
+      self.trigger(name, params);
+    });
+  };
+
+  Select2.prototype._registerResultsEvents = function () {
+    var self = this;
+
+    this.results.on('*', function (name, params) {
+      self.trigger(name, params);
+    });
+  };
+
+  Select2.prototype._registerEvents = function () {
+    var self = this;
+
+    this.on('open', function () {
+      self.$container.addClass('select2-container--open');
+    });
+
+    this.on('close', function () {
+      self.$container.removeClass('select2-container--open');
+    });
+
+    this.on('enable', function () {
+      self.$container.removeClass('select2-container--disabled');
+    });
+
+    this.on('disable', function () {
+      self.$container.addClass('select2-container--disabled');
+    });
+
+    this.on('blur', function () {
+      self.$container.removeClass('select2-container--focus');
+    });
+
+    this.on('query', function (params) {
+      if (!self.isOpen()) {
+        self.trigger('open', {});
+      }
+
+      this.dataAdapter.query(params, function (data) {
+        self.trigger('results:all', {
+          data: data,
+          query: params
+        });
+      });
+    });
+
+    this.on('query:append', function (params) {
+      this.dataAdapter.query(params, function (data) {
+        self.trigger('results:append', {
+          data: data,
+          query: params
+        });
+      });
+    });
+
+    this.on('keypress', function (evt) {
+      var key = evt.which;
+
+      if (self.isOpen()) {
+        if (key === KEYS.ESC || key === KEYS.TAB ||
+            (key === KEYS.UP && evt.altKey)) {
+          self.close();
+
+          evt.preventDefault();
+        } else if (key === KEYS.ENTER) {
+          self.trigger('results:select', {});
+
+          evt.preventDefault();
+        } else if ((key === KEYS.SPACE && evt.ctrlKey)) {
+          self.trigger('results:toggle', {});
+
+          evt.preventDefault();
+        } else if (key === KEYS.UP) {
+          self.trigger('results:previous', {});
+
+          evt.preventDefault();
+        } else if (key === KEYS.DOWN) {
+          self.trigger('results:next', {});
+
+          evt.preventDefault();
+        }
+      } else {
+        if (key === KEYS.ENTER || key === KEYS.SPACE ||
+            (key === KEYS.DOWN && evt.altKey)) {
+          self.open();
+
+          evt.preventDefault();
+        }
+      }
+    });
+  };
+
+  Select2.prototype._syncAttributes = function () {
+    this.options.set('disabled', this.$element.prop('disabled'));
+
+    if (this.options.get('disabled')) {
+      if (this.isOpen()) {
+        this.close();
+      }
+
+      this.trigger('disable', {});
+    } else {
+      this.trigger('enable', {});
+    }
+  };
+
+  /**
+   * Override the trigger method to automatically trigger pre-events when
+   * there are events that can be prevented.
+   */
+  Select2.prototype.trigger = function (name, args) {
+    var actualTrigger = Select2.__super__.trigger;
+    var preTriggerMap = {
+      'open': 'opening',
+      'close': 'closing',
+      'select': 'selecting',
+      'unselect': 'unselecting'
+    };
+
+    if (args === undefined) {
+      args = {};
+    }
+
+    if (name in preTriggerMap) {
+      var preTriggerName = preTriggerMap[name];
+      var preTriggerArgs = {
+        prevented: false,
+        name: name,
+        args: args
+      };
+
+      actualTrigger.call(this, preTriggerName, preTriggerArgs);
+
+      if (preTriggerArgs.prevented) {
+        args.prevented = true;
+
+        return;
+      }
+    }
+
+    actualTrigger.call(this, name, args);
+  };
+
+  Select2.prototype.toggleDropdown = function () {
+    if (this.options.get('disabled')) {
+      return;
+    }
+
+    if (this.isOpen()) {
+      this.close();
+    } else {
+      this.open();
+    }
+  };
+
+  Select2.prototype.open = function () {
+    if (this.isOpen()) {
+      return;
+    }
+
+    this.trigger('query', {});
+  };
+
+  Select2.prototype.close = function () {
+    if (!this.isOpen()) {
+      return;
+    }
+
+    this.trigger('close', {});
+  };
+
+  Select2.prototype.isOpen = function () {
+    return this.$container.hasClass('select2-container--open');
+  };
+
+  Select2.prototype.hasFocus = function () {
+    return this.$container.hasClass('select2-container--focus');
+  };
+
+  Select2.prototype.focus = function (data) {
+    // No need to re-trigger focus events if we are already focused
+    if (this.hasFocus()) {
+      return;
+    }
+
+    this.$container.addClass('select2-container--focus');
+    this.trigger('focus', {});
+  };
+
+  Select2.prototype.enable = function (args) {
+    if (this.options.get('debug') && window.console && console.warn) {
+      console.warn(
+        'Select2: The `select2("enable")` method has been deprecated and will' +
+        ' be removed in later Select2 versions. Use $element.prop("disabled")' +
+        ' instead.'
+      );
+    }
+
+    if (args == null || args.length === 0) {
+      args = [true];
+    }
+
+    var disabled = !args[0];
+
+    this.$element.prop('disabled', disabled);
+  };
+
+  Select2.prototype.data = function () {
+    if (this.options.get('debug') &&
+        arguments.length > 0 && window.console && console.warn) {
+      console.warn(
+        'Select2: Data can no longer be set using `select2("data")`. You ' +
+        'should consider setting the value instead using `$element.val()`.'
+      );
+    }
+
+    var data = [];
+
+    this.dataAdapter.current(function (currentData) {
+      data = currentData;
+    });
+
+    return data;
+  };
+
+  Select2.prototype.val = function (args) {
+    if (this.options.get('debug') && window.console && console.warn) {
+      console.warn(
+        'Select2: The `select2("val")` method has been deprecated and will be' +
+        ' removed in later Select2 versions. Use $element.val() instead.'
+      );
+    }
+
+    if (args == null || args.length === 0) {
+      return this.$element.val();
+    }
+
+    var newVal = args[0];
+
+    if ($.isArray(newVal)) {
+      newVal = $.map(newVal, function (obj) {
+        return obj.toString();
+      });
+    }
+
+    this.$element.val(newVal).trigger('change');
+  };
+
+  Select2.prototype.destroy = function () {
+    this.$container.remove();
+
+    if (this.$element[0].detachEvent) {
+      this.$element[0].detachEvent('onpropertychange', this._sync);
+    }
+
+    if (this._observer != null) {
+      this._observer.disconnect();
+      this._observer = null;
+    } else if (this.$element[0].removeEventListener) {
+      this.$element[0]
+        .removeEventListener('DOMAttrModified', this._sync, false);
+    }
+
+    this._sync = null;
+
+    this.$element.off('.select2');
+    this.$element.attr('tabindex', 
+    Utils.GetData(this.$element[0], 'old-tabindex'));
+
+    this.$element.removeClass('select2-hidden-accessible');
+    this.$element.attr('aria-hidden', 'false');
+    Utils.RemoveData(this.$element[0]);
+
+    this.dataAdapter.destroy();
+    this.selection.destroy();
+    this.dropdown.destroy();
+    this.results.destroy();
+
+    this.dataAdapter = null;
+    this.selection = null;
+    this.dropdown = null;
+    this.results = null;
+  };
+
+  Select2.prototype.render = function () {
+    var $container = $(
+      '<span class="select2 select2-container">' +
+        '<span class="selection"></span>' +
+        '<span class="dropdown-wrapper" aria-hidden="true"></span>' +
+      '</span>'
+    );
+
+    $container.attr('dir', this.options.get('dir'));
+
+    this.$container = $container;
+
+    this.$container.addClass('select2-container--' + this.options.get('theme'));
+
+    Utils.StoreData($container[0], 'element', this.$element);
+
+    return $container;
+  };
+
+  return Select2;
+});
diff --git a/src/js/select2/data/select.js b/src/js/select2/data/select.js
index 78a11297..9737422d 100644
--- a/src/js/select2/data/select.js
+++ b/src/js/select2/data/select.js
@@ -1,285 +1,285 @@
-define([
-  './base',
-  '../utils',
-  'jquery'
-], function (BaseAdapter, Utils, $) {
-  function SelectAdapter ($element, options) {
-    this.$element = $element;
-    this.options = options;
-
-    SelectAdapter.__super__.constructor.call(this);
-  }
-
-  Utils.Extend(SelectAdapter, BaseAdapter);
-
-  SelectAdapter.prototype.current = function (callback) {
-    var data = [];
-    var self = this;
-
-    this.$element.find(':selected').each(function () {
-      var $option = $(this);
-
-      var option = self.item($option);
-
-      data.push(option);
-    });
-
-    callback(data);
-  };
-
-  SelectAdapter.prototype.select = function (data) {
-    var self = this;
-
-    data.selected = true;
-
-    // If data.element is a DOM node, use it instead
-    if ($(data.element).is('option')) {
-      data.element.selected = true;
-
-      this.$element.trigger('change');
-
-      return;
-    }
-
-    if (this.$element.prop('multiple')) {
-      this.current(function (currentData) {
-        var val = [];
-
-        data = [data];
-        data.push.apply(data, currentData);
-
-        for (var d = 0; d < data.length; d++) {
-          var id = data[d].id;
-
-          if ($.inArray(id, val) === -1) {
-            val.push(id);
-          }
-        }
-
-        self.$element.val(val);
-        self.$element.trigger('change');
-      });
-    } else {
-      var val = data.id;
-
-      this.$element.val(val);
-      this.$element.trigger('change');
-    }
-  };
-
-  SelectAdapter.prototype.unselect = function (data) {
-    var self = this;
-
-    if (!this.$element.prop('multiple')) {
-      return;
-    }
-
-    data.selected = false;
-
-    if ($(data.element).is('option')) {
-      data.element.selected = false;
-
-      this.$element.trigger('change');
-
-      return;
-    }
-
-    this.current(function (currentData) {
-      var val = [];
-
-      for (var d = 0; d < currentData.length; d++) {
-        var id = currentData[d].id;
-
-        if (id !== data.id && $.inArray(id, val) === -1) {
-          val.push(id);
-        }
-      }
-
-      self.$element.val(val);
-
-      self.$element.trigger('change');
-    });
-  };
-
-  SelectAdapter.prototype.bind = function (container, $container) {
-    var self = this;
-
-    this.container = container;
-
-    container.on('select', function (params) {
-      self.select(params.data);
-    });
-
-    container.on('unselect', function (params) {
-      self.unselect(params.data);
-    });
-  };
-
-  SelectAdapter.prototype.destroy = function () {
-    // Remove anything added to child elements
-    this.$element.find('*').each(function () {
-      // Remove any custom data set by Select2
-      Utils.RemoveData(this);
-    });
-  };
-
-  SelectAdapter.prototype.query = function (params, callback) {
-    var data = [];
-    var self = this;
-
-    var $options = this.$element.children();
-
-    $options.each(function () {
-      var $option = $(this);
-
-      if (!$option.is('option') && !$option.is('optgroup')) {
-        return;
-      }
-
-      var option = self.item($option);
-
-      var matches = self.matches(params, option);
-
-      if (matches !== null) {
-        data.push(matches);
-      }
-    });
-
-    callback({
-      results: data
-    });
-  };
-
-  SelectAdapter.prototype.addOptions = function ($options) {
-    Utils.appendMany(this.$element, $options);
-  };
-
-  SelectAdapter.prototype.option = function (data) {
-    var option;
-
-    if (data.children) {
-      option = document.createElement('optgroup');
-      option.label = data.text;
-    } else {
-      option = document.createElement('option');
-
-      if (option.textContent !== undefined) {
-        option.textContent = data.text;
-      } else {
-        option.innerText = data.text;
-      }
-    }
-
-    if (data.id) {
-      option.value = data.id;
-    }
-
-    if (data.disabled) {
-      option.disabled = true;
-    }
-
-    if (data.selected) {
-      option.selected = true;
-    }
-
-    if (data.title) {
-      option.title = data.title;
-    }
-
-    var $option = $(option);
-
-    var normalizedData = this._normalizeItem(data);
-    normalizedData.element = option;
-
-    // Override the option's data with the combined data
-    Utils.StoreData(option, 'data', normalizedData);
-
-    return $option;
-  };
-
-  SelectAdapter.prototype.item = function ($option) {
-    var data = {};
-
-    data = Utils.GetData($option[0], 'data');
-
-    if (data != null) {
-      return data;
-    }
-
-    if ($option.is('option')) {
-      data = {
-        id: $option.val(),
-        text: $option.text(),
-        disabled: $option.prop('disabled'),
-        selected: $option.prop('selected'),
-        title: $option.prop('title')
-      };
-    } else if ($option.is('optgroup')) {
-      data = {
-        text: $option.prop('label'),
-        children: [],
-        title: $option.prop('title')
-      };
-
-      var $children = $option.children('option');
-      var children = [];
-
-      for (var c = 0; c < $children.length; c++) {
-        var $child = $($children[c]);
-
-        var child = this.item($child);
-
-        children.push(child);
-      }
-
-      data.children = children;
-    }
-
-    data = this._normalizeItem(data);
-    data.element = $option[0];
-
-    Utils.StoreData($option[0], 'data', data);
-
-    return data;
-  };
-
-  SelectAdapter.prototype._normalizeItem = function (item) {
-    if (!$.isPlainObject(item)) {
-      item = {
-        id: item,
-        text: item
-      };
-    }
-
-    item = $.extend({}, {
-      text: ''
-    }, item);
-
-    var defaults = {
-      selected: false,
-      disabled: false
-    };
-
-    if (item.id != null) {
-      item.id = item.id.toString();
-    }
-
-    if (item.text != null) {
-      item.text = item.text.toString();
-    }
-
-    if (item._resultId == null && item.id && this.container != null) {
-      item._resultId = this.generateResultId(this.container, item);
-    }
-
-    return $.extend({}, defaults, item);
-  };
-
-  SelectAdapter.prototype.matches = function (params, data) {
-    var matcher = this.options.get('matcher');
-
-    return matcher(params, data);
-  };
-
-  return SelectAdapter;
-});
+define([
+  './base',
+  '../utils',
+  'jquery'
+], function (BaseAdapter, Utils, $) {
+  function SelectAdapter ($element, options) {
+    this.$element = $element;
+    this.options = options;
+
+    SelectAdapter.__super__.constructor.call(this);
+  }
+
+  Utils.Extend(SelectAdapter, BaseAdapter);
+
+  SelectAdapter.prototype.current = function (callback) {
+    var data = [];
+    var self = this;
+
+    this.$element.find(':selected').each(function () {
+      var $option = $(this);
+
+      var option = self.item($option);
+
+      data.push(option);
+    });
+
+    callback(data);
+  };
+
+  SelectAdapter.prototype.select = function (data) {
+    var self = this;
+
+    data.selected = true;
+
+    // If data.element is a DOM node, use it instead
+    if ($(data.element).is('option')) {
+      data.element.selected = true;
+
+      this.$element.trigger('change');
+
+      return;
+    }
+
+    if (this.$element.prop('multiple')) {
+      this.current(function (currentData) {
+        var val = [];
+
+        data = [data];
+        data.push.apply(data, currentData);
+
+        for (var d = 0; d < data.length; d++) {
+          var id = data[d].id;
+
+          if ($.inArray(id, val) === -1) {
+            val.push(id);
+          }
+        }
+
+        self.$element.val(val);
+        self.$element.trigger('change');
+      });
+    } else {
+      var val = data.id;
+
+      this.$element.val(val);
+      this.$element.trigger('change');
+    }
+  };
+
+  SelectAdapter.prototype.unselect = function (data) {
+    var self = this;
+
+    if (!this.$element.prop('multiple')) {
+      return;
+    }
+
+    data.selected = false;
+
+    if ($(data.element).is('option')) {
+      data.element.selected = false;
+
+      this.$element.trigger('change');
+
+      return;
+    }
+
+    this.current(function (currentData) {
+      var val = [];
+
+      for (var d = 0; d < currentData.length; d++) {
+        var id = currentData[d].id;
+
+        if (id !== data.id && $.inArray(id, val) === -1) {
+          val.push(id);
+        }
+      }
+
+      self.$element.val(val);
+
+      self.$element.trigger('change');
+    });
+  };
+
+  SelectAdapter.prototype.bind = function (container, $container) {
+    var self = this;
+
+    this.container = container;
+
+    container.on('select', function (params) {
+      self.select(params.data);
+    });
+
+    container.on('unselect', function (params) {
+      self.unselect(params.data);
+    });
+  };
+
+  SelectAdapter.prototype.destroy = function () {
+    // Remove anything added to child elements
+    this.$element.find('*').each(function () {
+      // Remove any custom data set by Select2
+      Utils.RemoveData(this);
+    });
+  };
+
+  SelectAdapter.prototype.query = function (params, callback) {
+    var data = [];
+    var self = this;
+
+    var $options = this.$element.children();
+
+    $options.each(function () {
+      var $option = $(this);
+
+      if (!$option.is('option') && !$option.is('optgroup')) {
+        return;
+      }
+
+      var option = self.item($option);
+
+      var matches = self.matches(params, option);
+
+      if (matches !== null) {
+        data.push(matches);
+      }
+    });
+
+    callback({
+      results: data
+    });
+  };
+
+  SelectAdapter.prototype.addOptions = function ($options) {
+    Utils.appendMany(this.$element, $options);
+  };
+
+  SelectAdapter.prototype.option = function (data) {
+    var option;
+
+    if (data.children) {
+      option = document.createElement('optgroup');
+      option.label = data.text;
+    } else {
+      option = document.createElement('option');
+
+      if (option.textContent !== undefined) {
+        option.textContent = data.text;
+      } else {
+        option.innerText = data.text;
+      }
+    }
+
+    if (data.id) {
+      option.value = data.id;
+    }
+
+    if (data.disabled) {
+      option.disabled = true;
+    }
+
+    if (data.selected) {
+      option.selected = true;
+    }
+
+    if (data.title) {
+      option.title = data.title;
+    }
+
+    var $option = $(option);
+
+    var normalizedData = this._normalizeItem(data);
+    normalizedData.element = option;
+
+    // Override the option's data with the combined data
+    Utils.StoreData(option, 'data', normalizedData);
+
+    return $option;
+  };
+
+  SelectAdapter.prototype.item = function ($option) {
+    var data = {};
+
+    data = Utils.GetData($option[0], 'data');
+
+    if (data != null) {
+      return data;
+    }
+
+    if ($option.is('option')) {
+      data = {
+        id: $option.val(),
+        text: $option.text(),
+        disabled: $option.prop('disabled'),
+        selected: $option.prop('selected'),
+        title: $option.prop('title')
+      };
+    } else if ($option.is('optgroup')) {
+      data = {
+        text: $option.prop('label'),
+        children: [],
+        title: $option.prop('title')
+      };
+
+      var $children = $option.children('option');
+      var children = [];
+
+      for (var c = 0; c < $children.length; c++) {
+        var $child = $($children[c]);
+
+        var child = this.item($child);
+
+        children.push(child);
+      }
+
+      data.children = children;
+    }
+
+    data = this._normalizeItem(data);
+    data.element = $option[0];
+
+    Utils.StoreData($option[0], 'data', data);
+
+    return data;
+  };
+
+  SelectAdapter.prototype._normalizeItem = function (item) {
+    if (!$.isPlainObject(item)) {
+      item = {
+        id: item,
+        text: item
+      };
+    }
+
+    item = $.extend({}, {
+      text: ''
+    }, item);
+
+    var defaults = {
+      selected: false,
+      disabled: false
+    };
+
+    if (item.id != null) {
+      item.id = item.id.toString();
+    }
+
+    if (item.text != null) {
+      item.text = item.text.toString();
+    }
+
+    if (item._resultId == null && item.id && this.container != null) {
+      item._resultId = this.generateResultId(this.container, item);
+    }
+
+    return $.extend({}, defaults, item);
+  };
+
+  SelectAdapter.prototype.matches = function (params, data) {
+    var matcher = this.options.get('matcher');
+
+    return matcher(params, data);
+  };
+
+  return SelectAdapter;
+});
diff --git a/src/js/select2/dropdown/attachBody.js b/src/js/select2/dropdown/attachBody.js
index 5018a4f0..2c099963 100644
--- a/src/js/select2/dropdown/attachBody.js
+++ b/src/js/select2/dropdown/attachBody.js
@@ -1,222 +1,222 @@
-define([
-  'jquery',
-  '../utils'
-], function ($, Utils) {
-  function AttachBody (decorated, $element, options) {
-    this.$dropdownParent = options.get('dropdownParent') || $(document.body);
-
-    decorated.call(this, $element, options);
-  }
-
-  AttachBody.prototype.bind = function (decorated, container, $container) {
-    var self = this;
-
-    var setupResultsEvents = false;
-
-    decorated.call(this, container, $container);
-
-    container.on('open', function () {
-      self._showDropdown();
-      self._attachPositioningHandler(container);
-
-      if (!setupResultsEvents) {
-        setupResultsEvents = true;
-
-        container.on('results:all', function () {
-          self._positionDropdown();
-          self._resizeDropdown();
-        });
-
-        container.on('results:append', function () {
-          self._positionDropdown();
-          self._resizeDropdown();
-        });
-      }
-    });
-
-    container.on('close', function () {
-      self._hideDropdown();
-      self._detachPositioningHandler(container);
-    });
-
-    this.$dropdownContainer.on('mousedown', function (evt) {
-      evt.stopPropagation();
-    });
-  };
-
-  AttachBody.prototype.destroy = function (decorated) {
-    decorated.call(this);
-
-    this.$dropdownContainer.remove();
-  };
-
-  AttachBody.prototype.position = function (decorated, $dropdown, $container) {
-    // Clone all of the container classes
-    $dropdown.attr('class', $container.attr('class'));
-
-    $dropdown.removeClass('select2');
-    $dropdown.addClass('select2-container--open');
-
-    $dropdown.css({
-      position: 'absolute',
-      top: -999999
-    });
-
-    this.$container = $container;
-  };
-
-  AttachBody.prototype.render = function (decorated) {
-    var $container = $('<span></span>');
-
-    var $dropdown = decorated.call(this);
-    $container.append($dropdown);
-
-    this.$dropdownContainer = $container;
-
-    return $container;
-  };
-
-  AttachBody.prototype._hideDropdown = function (decorated) {
-    this.$dropdownContainer.detach();
-  };
-
-  AttachBody.prototype._attachPositioningHandler =
-      function (decorated, container) {
-    var self = this;
-
-    var scrollEvent = 'scroll.select2.' + container.id;
-    var resizeEvent = 'resize.select2.' + container.id;
-    var orientationEvent = 'orientationchange.select2.' + container.id;
-
-    var $watchers = this.$container.parents().filter(Utils.hasScroll);
-    $watchers.each(function () {
-      Utils.StoreData(this, 'select2-scroll-position', {
-        x: $(this).scrollLeft(),
-        y: $(this).scrollTop()
-      });
-    });
-
-    $watchers.on(scrollEvent, function (ev) {
-      var position = Utils.GetData(this, 'select2-scroll-position');
-      $(this).scrollTop(position.y);
-    });
-
-    $(window).on(scrollEvent + ' ' + resizeEvent + ' ' + orientationEvent,
-      function (e) {
-      self._positionDropdown();
-      self._resizeDropdown();
-    });
-  };
-
-  AttachBody.prototype._detachPositioningHandler =
-      function (decorated, container) {
-    var scrollEvent = 'scroll.select2.' + container.id;
-    var resizeEvent = 'resize.select2.' + container.id;
-    var orientationEvent = 'orientationchange.select2.' + container.id;
-
-    var $watchers = this.$container.parents().filter(Utils.hasScroll);
-    $watchers.off(scrollEvent);
-
-    $(window).off(scrollEvent + ' ' + resizeEvent + ' ' + orientationEvent);
-  };
-
-  AttachBody.prototype._positionDropdown = function () {
-    var $window = $(window);
-
-    var isCurrentlyAbove = this.$dropdown.hasClass('select2-dropdown--above');
-    var isCurrentlyBelow = this.$dropdown.hasClass('select2-dropdown--below');
-
-    var newDirection = null;
-
-    var offset = this.$container.offset();
-
-    offset.bottom = offset.top + this.$container.outerHeight(false);
-
-    var container = {
-      height: this.$container.outerHeight(false)
-    };
-
-    container.top = offset.top;
-    container.bottom = offset.top + container.height;
-
-    var dropdown = {
-      height: this.$dropdown.outerHeight(false)
-    };
-
-    var viewport = {
-      top: $window.scrollTop(),
-      bottom: $window.scrollTop() + $window.height()
-    };
-
-    var enoughRoomAbove = viewport.top < (offset.top - dropdown.height);
-    var enoughRoomBelow = viewport.bottom > (offset.bottom + dropdown.height);
-
-    var css = {
-      left: offset.left,
-      top: container.bottom
-    };
-
-    // Determine what the parent element is to use for calciulating the offset
-    var $offsetParent = this.$dropdownParent;
-
-    // For statically positoned elements, we need to get the element
-    // that is determining the offset
-    if ($offsetParent.css('position') === 'static') {
-      $offsetParent = $offsetParent.offsetParent();
-    }
-
-    var parentOffset = $offsetParent.offset();
-
-    css.top -= parentOffset.top;
-    css.left -= parentOffset.left;
-
-    if (!isCurrentlyAbove && !isCurrentlyBelow) {
-      newDirection = 'below';
-    }
-
-    if (!enoughRoomBelow && enoughRoomAbove && !isCurrentlyAbove) {
-      newDirection = 'above';
-    } else if (!enoughRoomAbove && enoughRoomBelow && isCurrentlyAbove) {
-      newDirection = 'below';
-    }
-
-    if (newDirection == 'above' ||
-      (isCurrentlyAbove && newDirection !== 'below')) {
-      css.top = container.top - parentOffset.top - dropdown.height;
-    }
-
-    if (newDirection != null) {
-      this.$dropdown
-        .removeClass('select2-dropdown--below select2-dropdown--above')
-        .addClass('select2-dropdown--' + newDirection);
-      this.$container
-        .removeClass('select2-container--below select2-container--above')
-        .addClass('select2-container--' + newDirection);
-    }
-
-    this.$dropdownContainer.css(css);
-  };
-
-  AttachBody.prototype._resizeDropdown = function () {
-    var css = {
-      width: this.$container.outerWidth(false) + 'px'
-    };
-
-    if (this.options.get('dropdownAutoWidth')) {
-      css.minWidth = css.width;
-      css.position = 'relative';
-      css.width = 'auto';
-    }
-
-    this.$dropdown.css(css);
-  };
-
-  AttachBody.prototype._showDropdown = function (decorated) {
-    this.$dropdownContainer.appendTo(this.$dropdownParent);
-
-    this._positionDropdown();
-    this._resizeDropdown();
-  };
-
-  return AttachBody;
-});
+define([
+  'jquery',
+  '../utils'
+], function ($, Utils) {
+  function AttachBody (decorated, $element, options) {
+    this.$dropdownParent = options.get('dropdownParent') || $(document.body);
+
+    decorated.call(this, $element, options);
+  }
+
+  AttachBody.prototype.bind = function (decorated, container, $container) {
+    var self = this;
+
+    var setupResultsEvents = false;
+
+    decorated.call(this, container, $container);
+
+    container.on('open', function () {
+      self._showDropdown();
+      self._attachPositioningHandler(container);
+
+      if (!setupResultsEvents) {
+        setupResultsEvents = true;
+
+        container.on('results:all', function () {
+          self._positionDropdown();
+          self._resizeDropdown();
+        });
+
+        container.on('results:append', function () {
+          self._positionDropdown();
+          self._resizeDropdown();
+        });
+      }
+    });
+
+    container.on('close', function () {
+      self._hideDropdown();
+      self._detachPositioningHandler(container);
+    });
+
+    this.$dropdownContainer.on('mousedown', function (evt) {
+      evt.stopPropagation();
+    });
+  };
+
+  AttachBody.prototype.destroy = function (decorated) {
+    decorated.call(this);
+
+    this.$dropdownContainer.remove();
+  };
+
+  AttachBody.prototype.position = function (decorated, $dropdown, $container) {
+    // Clone all of the container classes
+    $dropdown.attr('class', $container.attr('class'));
+
+    $dropdown.removeClass('select2');
+    $dropdown.addClass('select2-container--open');
+
+    $dropdown.css({
+      position: 'absolute',
+      top: -999999
+    });
+
+    this.$container = $container;
+  };
+
+  AttachBody.prototype.render = function (decorated) {
+    var $container = $('<span></span>');
+
+    var $dropdown = decorated.call(this);
+    $container.append($dropdown);
+
+    this.$dropdownContainer = $container;
+
+    return $container;
+  };
+
+  AttachBody.prototype._hideDropdown = function (decorated) {
+    this.$dropdownContainer.detach();
+  };
+
+  AttachBody.prototype._attachPositioningHandler =
+      function (decorated, container) {
+    var self = this;
+
+    var scrollEvent = 'scroll.select2.' + container.id;
+    var resizeEvent = 'resize.select2.' + container.id;
+    var orientationEvent = 'orientationchange.select2.' + container.id;
+
+    var $watchers = this.$container.parents().filter(Utils.hasScroll);
+    $watchers.each(function () {
+      Utils.StoreData(this, 'select2-scroll-position', {
+        x: $(this).scrollLeft(),
+        y: $(this).scrollTop()
+      });
+    });
+
+    $watchers.on(scrollEvent, function (ev) {
+      var position = Utils.GetData(this, 'select2-scroll-position');
+      $(this).scrollTop(position.y);
+    });
+
+    $(window).on(scrollEvent + ' ' + resizeEvent + ' ' + orientationEvent,
+      function (e) {
+      self._positionDropdown();
+      self._resizeDropdown();
+    });
+  };
+
+  AttachBody.prototype._detachPositioningHandler =
+      function (decorated, container) {
+    var scrollEvent = 'scroll.select2.' + container.id;
+    var resizeEvent = 'resize.select2.' + container.id;
+    var orientationEvent = 'orientationchange.select2.' + container.id;
+
+    var $watchers = this.$container.parents().filter(Utils.hasScroll);
+    $watchers.off(scrollEvent);
+
+    $(window).off(scrollEvent + ' ' + resizeEvent + ' ' + orientationEvent);
+  };
+
+  AttachBody.prototype._positionDropdown = function () {
+    var $window = $(window);
+
+    var isCurrentlyAbove = this.$dropdown.hasClass('select2-dropdown--above');
+    var isCurrentlyBelow = this.$dropdown.hasClass('select2-dropdown--below');
+
+    var newDirection = null;
+
+    var offset = this.$container.offset();
+
+    offset.bottom = offset.top + this.$container.outerHeight(false);
+
+    var container = {
+      height: this.$container.outerHeight(false)
+    };
+
+    container.top = offset.top;
+    container.bottom = offset.top + container.height;
+
+    var dropdown = {
+      height: this.$dropdown.outerHeight(false)
+    };
+
+    var viewport = {
+      top: $window.scrollTop(),
+      bottom: $window.scrollTop() + $window.height()
+    };
+
+    var enoughRoomAbove = viewport.top < (offset.top - dropdown.height);
+    var enoughRoomBelow = viewport.bottom > (offset.bottom + dropdown.height);
+
+    var css = {
+      left: offset.left,
+      top: container.bottom
+    };
+
+    // Determine what the parent element is to use for calciulating the offset
+    var $offsetParent = this.$dropdownParent;
+
+    // For statically positoned elements, we need to get the element
+    // that is determining the offset
+    if ($offsetParent.css('position') === 'static') {
+      $offsetParent = $offsetParent.offsetParent();
+    }
+
+    var parentOffset = $offsetParent.offset();
+
+    css.top -= parentOffset.top;
+    css.left -= parentOffset.left;
+
+    if (!isCurrentlyAbove && !isCurrentlyBelow) {
+      newDirection = 'below';
+    }
+
+    if (!enoughRoomBelow && enoughRoomAbove && !isCurrentlyAbove) {
+      newDirection = 'above';
+    } else if (!enoughRoomAbove && enoughRoomBelow && isCurrentlyAbove) {
+      newDirection = 'below';
+    }
+
+    if (newDirection == 'above' ||
+      (isCurrentlyAbove && newDirection !== 'below')) {
+      css.top = container.top - parentOffset.top - dropdown.height;
+    }
+
+    if (newDirection != null) {
+      this.$dropdown
+        .removeClass('select2-dropdown--below select2-dropdown--above')
+        .addClass('select2-dropdown--' + newDirection);
+      this.$container
+        .removeClass('select2-container--below select2-container--above')
+        .addClass('select2-container--' + newDirection);
+    }
+
+    this.$dropdownContainer.css(css);
+  };
+
+  AttachBody.prototype._resizeDropdown = function () {
+    var css = {
+      width: this.$container.outerWidth(false) + 'px'
+    };
+
+    if (this.options.get('dropdownAutoWidth')) {
+      css.minWidth = css.width;
+      css.position = 'relative';
+      css.width = 'auto';
+    }
+
+    this.$dropdown.css(css);
+  };
+
+  AttachBody.prototype._showDropdown = function (decorated) {
+    this.$dropdownContainer.appendTo(this.$dropdownParent);
+
+    this._positionDropdown();
+    this._resizeDropdown();
+  };
+
+  return AttachBody;
+});
diff --git a/src/js/select2/dropdown/selectOnClose.js b/src/js/select2/dropdown/selectOnClose.js
index 58d625e3..1065a467 100644
--- a/src/js/select2/dropdown/selectOnClose.js
+++ b/src/js/select2/dropdown/selectOnClose.js
@@ -1,40 +1,40 @@
-define([
-  '../utils'
-], function (Utils) {
-  function SelectOnClose () { }
-
-  SelectOnClose.prototype.bind = function (decorated, container, $container) {
-    var self = this;
-
-    decorated.call(this, container, $container);
-
-    container.on('close', function () {
-      self._handleSelectOnClose();
-    });
-  };
-
-  SelectOnClose.prototype._handleSelectOnClose = function () {
-    var $highlightedResults = this.getHighlightedResults();
-
-    // Only select highlighted results
-    if ($highlightedResults.length < 1) {
-      return;
-    }
-
-    var data = Utils.GetData($highlightedResults[0], 'data');
-
-    // Don't re-select already selected resulte
-    if (
-      (data.element != null && data.element.selected) ||
-      (data.element == null && data.selected)
-    ) {
-      return;
-    }
-
-    this.trigger('select', {
-        data: data
-    });
-  };
-
-  return SelectOnClose;
-});
+define([
+  '../utils'
+], function (Utils) {
+  function SelectOnClose () { }
+
+  SelectOnClose.prototype.bind = function (decorated, container, $container) {
+    var self = this;
+
+    decorated.call(this, container, $container);
+
+    container.on('close', function () {
+      self._handleSelectOnClose();
+    });
+  };
+
+  SelectOnClose.prototype._handleSelectOnClose = function () {
+    var $highlightedResults = this.getHighlightedResults();
+
+    // Only select highlighted results
+    if ($highlightedResults.length < 1) {
+      return;
+    }
+
+    var data = Utils.GetData($highlightedResults[0], 'data');
+
+    // Don't re-select already selected resulte
+    if (
+      (data.element != null && data.element.selected) ||
+      (data.element == null && data.selected)
+    ) {
+      return;
+    }
+
+    this.trigger('select', {
+        data: data
+    });
+  };
+
+  return SelectOnClose;
+});
diff --git a/src/js/select2/options.js b/src/js/select2/options.js
index 4c3110ea..d667c4f1 100644
--- a/src/js/select2/options.js
+++ b/src/js/select2/options.js
@@ -1,123 +1,123 @@
-define([
-  'require',
-  'jquery',
-  './defaults',
-  './utils'
-], function (require, $, Defaults, Utils) {
-  function Options (options, $element) {
-    this.options = options;
-
-    if ($element != null) {
-      this.fromElement($element);
-    }
-
-    this.options = Defaults.apply(this.options);
-
-    if ($element && $element.is('input')) {
-      var InputCompat = require(this.get('amdBase') + 'compat/inputData');
-
-      this.options.dataAdapter = Utils.Decorate(
-        this.options.dataAdapter,
-        InputCompat
-      );
-    }
-  }
-
-  Options.prototype.fromElement = function ($e) {
-    var excludedData = ['select2'];
-
-    if (this.options.multiple == null) {
-      this.options.multiple = $e.prop('multiple');
-    }
-
-    if (this.options.disabled == null) {
-      this.options.disabled = $e.prop('disabled');
-    }
-
-    if (this.options.language == null) {
-      if ($e.prop('lang')) {
-        this.options.language = $e.prop('lang').toLowerCase();
-      } else if ($e.closest('[lang]').prop('lang')) {
-        this.options.language = $e.closest('[lang]').prop('lang');
-      }
-    }
-
-    if (this.options.dir == null) {
-      if ($e.prop('dir')) {
-        this.options.dir = $e.prop('dir');
-      } else if ($e.closest('[dir]').prop('dir')) {
-        this.options.dir = $e.closest('[dir]').prop('dir');
-      } else {
-        this.options.dir = 'ltr';
-      }
-    }
-
-    $e.prop('disabled', this.options.disabled);
-    $e.prop('multiple', this.options.multiple);
-
-    if (Utils.GetData($e[0], 'select2Tags')) {
-      if (this.options.debug && window.console && console.warn) {
-        console.warn(
-          'Select2: The `data-select2-tags` attribute has been changed to ' +
-          'use the `data-data` and `data-tags="true"` attributes and will be ' +
-          'removed in future versions of Select2.'
-        );
-      }
-
-      Utils.StoreData($e[0], 'data', Utils.GetData($e[0], 'select2Tags'));
-      Utils.StoreData($e[0], 'tags', true);
-    }
-
-    if (Utils.GetData($e[0], 'ajaxUrl')) {
-      if (this.options.debug && window.console && console.warn) {
-        console.warn(
-          'Select2: The `data-ajax-url` attribute has been changed to ' +
-          '`data-ajax--url` and support for the old attribute will be removed' +
-          ' in future versions of Select2.'
-        );
-      }
-
-      $e.attr('ajax--url', Utils.GetData($e[0], 'ajaxUrl'));
-      Utils.StoreData($e[0], 'ajax-Url', Utils.GetData($e[0], 'ajaxUrl'));
-	  
-    }
-
-    var dataset = {};
-
-    // Prefer the element's `dataset` attribute if it exists
-    // jQuery 1.x does not correctly handle data attributes with multiple dashes
-    if ($.fn.jquery && $.fn.jquery.substr(0, 2) == '1.' && $e[0].dataset) {
-      dataset = $.extend(true, {}, $e[0].dataset, Utils.GetData($e[0]));
-    } else {
-      dataset = Utils.GetData($e[0]);
-    }
-
-    var data = $.extend(true, {}, dataset);
-
-    data = Utils._convertData(data);
-
-    for (var key in data) {
-      if ($.inArray(key, excludedData) > -1) {
-        continue;
-      }
-
-      if ($.isPlainObject(this.options[key])) {
-        $.extend(this.options[key], data[key]);
-      } else {
-        this.options[key] = data[key];
-      }
-    }
-
-    return this;
-  };
-
-  Options.prototype.get = function (key) {
-    return this.options[key];
-  };
-
-  Options.prototype.set = function (key, val) {
-    this.options[key] = val;
-  };
-
-  return Options;
-});
+define([
+  'require',
+  'jquery',
+  './defaults',
+  './utils'
+], function (require, $, Defaults, Utils) {
+  function Options (options, $element) {
+    this.options = options;
+
+    if ($element != null) {
+      this.fromElement($element);
+    }
+
+    this.options = Defaults.apply(this.options);
+
+    if ($element && $element.is('input')) {
+      var InputCompat = require(this.get('amdBase') + 'compat/inputData');
+
+      this.options.dataAdapter = Utils.Decorate(
+        this.options.dataAdapter,
+        InputCompat
+      );
+    }
+  }
+
+  Options.prototype.fromElement = function ($e) {
+    var excludedData = ['select2'];
+
+    if (this.options.multiple == null) {
+      this.options.multiple = $e.prop('multiple');
+    }
+
+    if (this.options.disabled == null) {
+      this.options.disabled = $e.prop('disabled');
+    }
+
+    if (this.options.language == null) {
+      if ($e.prop('lang')) {
+        this.options.language = $e.prop('lang').toLowerCase();
+      } else if ($e.closest('[lang]').prop('lang')) {
+        this.options.language = $e.closest('[lang]').prop('lang');
+      }
+    }
+
+    if (this.options.dir == null) {
+      if ($e.prop('dir')) {
+        this.options.dir = $e.prop('dir');
+      } else if ($e.closest('[dir]').prop('dir')) {
+        this.options.dir = $e.closest('[dir]').prop('dir');
+      } else {
+        this.options.dir = 'ltr';
+      }
+    }
+
+    $e.prop('disabled', this.options.disabled);
+    $e.prop('multiple', this.options.multiple);
+
+    if (Utils.GetData($e[0], 'select2Tags')) {
+      if (this.options.debug && window.console && console.warn) {
+        console.warn(
+          'Select2: The `data-select2-tags` attribute has been changed to ' +
+          'use the `data-data` and `data-tags="true"` attributes and will be ' +
+          'removed in future versions of Select2.'
+        );
+      }
+
+      Utils.StoreData($e[0], 'data', Utils.GetData($e[0], 'select2Tags'));
+      Utils.StoreData($e[0], 'tags', true);
+    }
+
+    if (Utils.GetData($e[0], 'ajaxUrl')) {
+      if (this.options.debug && window.console && console.warn) {
+        console.warn(
+          'Select2: The `data-ajax-url` attribute has been changed to ' +
+          '`data-ajax--url` and support for the old attribute will be removed' +
+          ' in future versions of Select2.'
+        );
+      }
+
+      $e.attr('ajax--url', Utils.GetData($e[0], 'ajaxUrl'));
+      Utils.StoreData($e[0], 'ajax-Url', Utils.GetData($e[0], 'ajaxUrl'));
+	  
+    }
+
+    var dataset = {};
+
+    // Prefer the element's `dataset` attribute if it exists
+    // jQuery 1.x does not correctly handle data attributes with multiple dashes
+    if ($.fn.jquery && $.fn.jquery.substr(0, 2) == '1.' && $e[0].dataset) {
+      dataset = $.extend(true, {}, $e[0].dataset, Utils.GetData($e[0]));
+    } else {
+      dataset = Utils.GetData($e[0]);
+    }
+
+    var data = $.extend(true, {}, dataset);
+
+    data = Utils._convertData(data);
+
+    for (var key in data) {
+      if ($.inArray(key, excludedData) > -1) {
+        continue;
+      }
+
+      if ($.isPlainObject(this.options[key])) {
+        $.extend(this.options[key], data[key]);
+      } else {
+        this.options[key] = data[key];
+      }
+    }
+
+    return this;
+  };
+
+  Options.prototype.get = function (key) {
+    return this.options[key];
+  };
+
+  Options.prototype.set = function (key, val) {
+    this.options[key] = val;
+  };
+
+  return Options;
+});
diff --git a/src/js/select2/results.js b/src/js/select2/results.js
index 2ed10727..32d6c967 100644
--- a/src/js/select2/results.js
+++ b/src/js/select2/results.js
@@ -1,512 +1,512 @@
-define([
-  'jquery',
-  './utils'
-], function ($, Utils) {
-  function Results ($element, options, dataAdapter) {
-    this.$element = $element;
-    this.data = dataAdapter;
-    this.options = options;
-
-    Results.__super__.constructor.call(this);
-  }
-
-  Utils.Extend(Results, Utils.Observable);
-
-  Results.prototype.render = function () {
-    var $results = $(
-      '<ul class="select2-results__options" role="tree"></ul>'
-    );
-
-    if (this.options.get('multiple')) {
-      $results.attr('aria-multiselectable', 'true');
-    }
-
-    this.$results = $results;
-
-    return $results;
-  };
-
-  Results.prototype.clear = function () {
-    this.$results.empty();
-  };
-
-  Results.prototype.displayMessage = function (params) {
-    var escapeMarkup = this.options.get('escapeMarkup');
-
-    this.clear();
-    this.hideLoading();
-
-    var $message = $(
-      '<li role="treeitem" aria-live="assertive"' +
-      ' class="select2-results__option"></li>'
-    );
-
-    var message = this.options.get('translations').get(params.message);
-
-    $message.append(
-      escapeMarkup(
-        message(params.args)
-      )
-    );
-
-    $message[0].className += ' select2-results__message';
-
-    this.$results.append($message);
-  };
-
-  Results.prototype.hideMessages = function () {
-    this.$results.find('.select2-results__message').remove();
-  };
-
-  Results.prototype.append = function (data) {
-    this.hideLoading();
-
-    var $options = [];
-
-    if (data.results == null || data.results.length === 0) {
-      if (this.$results.children().length === 0) {
-        this.trigger('results:message', {
-          message: 'noResults'
-        });
-      }
-
-      return;
-    }
-
-    data.results = this.sort(data.results);
-
-    for (var d = 0; d < data.results.length; d++) {
-      var item = data.results[d];
-
-      var $option = this.option(item);
-
-      $options.push($option);
-    }
-
-    this.$results.append($options);
-  };
-
-  Results.prototype.position = function ($results, $dropdown) {
-    var $resultsContainer = $dropdown.find('.select2-results');
-    $resultsContainer.append($results);
-  };
-
-  Results.prototype.sort = function (data) {
-    var sorter = this.options.get('sorter');
-
-    return sorter(data);
-  };
-
-  Results.prototype.setClasses = function () {
-    var self = this;
-
-    this.data.current(function (selected) {
-      var selectedIds = $.map(selected, function (s) {
-        return s.id.toString();
-      });
-
-      var $options = self.$results
-        .find('.select2-results__option[aria-selected]');
-
-      $options.each(function () {
-        var $option = $(this);
-
-        var item = Utils.GetData(this, 'data');
-
-        // id needs to be converted to a string when comparing
-        var id = '' + item.id;
-
-        if ((item.element != null && item.element.selected) ||
-            (item.element == null && $.inArray(id, selectedIds) > -1)) {
-          $option.attr('aria-selected', 'true');
-        } else {
-          $option.attr('aria-selected', 'false');
-        }
-      });
-
-      var $selected = $options.filter('[aria-selected=true]');
-
-      // Check if there are any selected options
-      if ($selected.length > 0) {
-        // If there are selected options, highlight the first
-        $selected.first().trigger('mouseenter');
-      } else {
-        // If there are no selected options, highlight the first option
-        // in the dropdown
-        $options.first().trigger('mouseenter');
-      }
-    });
-  };
-
-  Results.prototype.showLoading = function (params) {
-    this.hideLoading();
-
-    var loadingMore = this.options.get('translations').get('searching');
-
-    var loading = {
-      disabled: true,
-      loading: true,
-      text: loadingMore(params)
-    };
-    var $loading = this.option(loading);
-    $loading.className += ' loading-results';
-
-    this.$results.prepend($loading);
-  };
-
-  Results.prototype.hideLoading = function () {
-    this.$results.find('.loading-results').remove();
-  };
-
-  Results.prototype.option = function (data) {
-    var option = document.createElement('li');
-    option.className = 'select2-results__option';
-
-    var attrs = {
-      'role': 'treeitem',
-      'aria-selected': 'false'
-    };
-
-    if (data.disabled) {
-      delete attrs['aria-selected'];
-      attrs['aria-disabled'] = 'true';
-    }
-
-    if (data.id == null) {
-      delete attrs['aria-selected'];
-    }
-
-    if (data._resultId != null) {
-      option.id = data._resultId;
-    }
-
-    if (data.title) {
-      option.title = data.title;
-    }
-
-    if (data.children) {
-      attrs.role = 'group';
-      attrs['aria-label'] = data.text;
-      delete attrs['aria-selected'];
-    }
-
-    for (var attr in attrs) {
-      var val = attrs[attr];
-
-      option.setAttribute(attr, val);
-    }
-
-    if (data.children) {
-      var $option = $(option);
-
-      var label = document.createElement('strong');
-      label.className = 'select2-results__group';
-
-      var $label = $(label);
-      this.template(data, label);
-
-      var $children = [];
-
-      for (var c = 0; c < data.children.length; c++) {
-        var child = data.children[c];
-
-        var $child = this.option(child);
-
-        $children.push($child);
-      }
-
-      var $childrenContainer = $('<ul></ul>', {
-        'class': 'select2-results__options select2-results__options--nested'
-      });
-
-      $childrenContainer.append($children);
-
-      $option.append(label);
-      $option.append($childrenContainer);
-    } else {
-      this.template(data, option);
-    }
-
-    Utils.StoreData(option, 'data', data);
-
-    return option;
-  };
-
-  Results.prototype.bind = function (container, $container) {
-    var self = this;
-
-    var id = container.id + '-results';
-
-    this.$results.attr('id', id);
-
-    container.on('results:all', function (params) {
-      self.clear();
-      self.append(params.data);
-
-      if (container.isOpen()) {
-        self.setClasses();
-      }
-    });
-
-    container.on('results:append', function (params) {
-      self.append(params.data);
-
-      if (container.isOpen()) {
-        self.setClasses();
-      }
-    });
-
-    container.on('query', function (params) {
-      self.hideMessages();
-      self.showLoading(params);
-    });
-
-    container.on('select', function () {
-      if (!container.isOpen()) {
-        return;
-      }
-
-      self.setClasses();
-    });
-
-    container.on('unselect', function () {
-      if (!container.isOpen()) {
-        return;
-      }
-
-      self.setClasses();
-    });
-
-    container.on('open', function () {
-      // When the dropdown is open, aria-expended="true"
-      self.$results.attr('aria-expanded', 'true');
-      self.$results.attr('aria-hidden', 'false');
-
-      self.setClasses();
-      self.ensureHighlightVisible();
-    });
-
-    container.on('close', function () {
-      // When the dropdown is closed, aria-expended="false"
-      self.$results.attr('aria-expanded', 'false');
-      self.$results.attr('aria-hidden', 'true');
-      self.$results.removeAttr('aria-activedescendant');
-    });
-
-    container.on('results:toggle', function () {
-      var $highlighted = self.getHighlightedResults();
-
-      if ($highlighted.length === 0) {
-        return;
-      }
-
-      $highlighted.trigger('mouseup');
-    });
-
-    container.on('results:select', function () {
-      var $highlighted = self.getHighlightedResults();
-
-      if ($highlighted.length === 0) {
-        return;
-      }
-
-      var data = Utils.GetData($highlighted[0], 'data');
-
-      if ($highlighted.attr('aria-selected') == 'true') {
-        self.trigger('close', {});
-      } else {
-        self.trigger('select', {
-          data: data
-        });
-      }
-    });
-
-    container.on('results:previous', function () {
-      var $highlighted = self.getHighlightedResults();
-
-      var $options = self.$results.find('[aria-selected]');
-
-      var currentIndex = $options.index($highlighted);
-
-      // If we are already at te top, don't move further
-      if (currentIndex === 0) {
-        return;
-      }
-
-      var nextIndex = currentIndex - 1;
-
-      // If none are highlighted, highlight the first
-      if ($highlighted.length === 0) {
-        nextIndex = 0;
-      }
-
-      var $next = $options.eq(nextIndex);
-
-      $next.trigger('mouseenter');
-
-      var currentOffset = self.$results.offset().top;
-      var nextTop = $next.offset().top;
-      var nextOffset = self.$results.scrollTop() + (nextTop - currentOffset);
-
-      if (nextIndex === 0) {
-        self.$results.scrollTop(0);
-      } else if (nextTop - currentOffset < 0) {
-        self.$results.scrollTop(nextOffset);
-      }
-    });
-
-    container.on('results:next', function () {
-      var $highlighted = self.getHighlightedResults();
-
-      var $options = self.$results.find('[aria-selected]');
-
-      var currentIndex = $options.index($highlighted);
-
-      var nextIndex = currentIndex + 1;
-
-      // If we are at the last option, stay there
-      if (nextIndex >= $options.length) {
-        return;
-      }
-
-      var $next = $options.eq(nextIndex);
-
-      $next.trigger('mouseenter');
-
-      var currentOffset = self.$results.offset().top +
-        self.$results.outerHeight(false);
-      var nextBottom = $next.offset().top + $next.outerHeight(false);
-      var nextOffset = self.$results.scrollTop() + nextBottom - currentOffset;
-
-      if (nextIndex === 0) {
-        self.$results.scrollTop(0);
-      } else if (nextBottom > currentOffset) {
-        self.$results.scrollTop(nextOffset);
-      }
-    });
-
-    container.on('results:focus', function (params) {
-      params.element.addClass('select2-results__option--highlighted');
-    });
-
-    container.on('results:message', function (params) {
-      self.displayMessage(params);
-    });
-
-    if ($.fn.mousewheel) {
-      this.$results.on('mousewheel', function (e) {
-        var top = self.$results.scrollTop();
-
-        var bottom = self.$results.get(0).scrollHeight - top + e.deltaY;
-
-        var isAtTop = e.deltaY > 0 && top - e.deltaY <= 0;
-        var isAtBottom = e.deltaY < 0 && bottom <= self.$results.height();
-
-        if (isAtTop) {
-          self.$results.scrollTop(0);
-
-          e.preventDefault();
-          e.stopPropagation();
-        } else if (isAtBottom) {
-          self.$results.scrollTop(
-            self.$results.get(0).scrollHeight - self.$results.height()
-          );
-
-          e.preventDefault();
-          e.stopPropagation();
-        }
-      });
-    }
-
-    this.$results.on('mouseup', '.select2-results__option[aria-selected]',
-      function (evt) {
-      var $this = $(this);
-
-      var data = Utils.GetData(this, 'data');
-
-      if ($this.attr('aria-selected') === 'true') {
-        if (self.options.get('multiple')) {
-          self.trigger('unselect', {
-            originalEvent: evt,
-            data: data
-          });
-        } else {
-          self.trigger('close', {});
-        }
-
-        return;
-      }
-
-      self.trigger('select', {
-        originalEvent: evt,
-        data: data
-      });
-    });
-
-    this.$results.on('mouseenter', '.select2-results__option[aria-selected]',
-      function (evt) {
-      var data = Utils.GetData(this, 'data');
-
-      self.getHighlightedResults()
-          .removeClass('select2-results__option--highlighted');
-
-      self.trigger('results:focus', {
-        data: data,
-        element: $(this)
-      });
-    });
-  };
-
-  Results.prototype.getHighlightedResults = function () {
-    var $highlighted = this.$results
-    .find('.select2-results__option--highlighted');
-
-    return $highlighted;
-  };
-
-  Results.prototype.destroy = function () {
-    this.$results.remove();
-  };
-
-  Results.prototype.ensureHighlightVisible = function () {
-    var $highlighted = this.getHighlightedResults();
-
-    if ($highlighted.length === 0) {
-      return;
-    }
-
-    var $options = this.$results.find('[aria-selected]');
-
-    var currentIndex = $options.index($highlighted);
-
-    var currentOffset = this.$results.offset().top;
-    var nextTop = $highlighted.offset().top;
-    var nextOffset = this.$results.scrollTop() + (nextTop - currentOffset);
-
-    var offsetDelta = nextTop - currentOffset;
-    nextOffset -= $highlighted.outerHeight(false) * 2;
-
-    if (currentIndex <= 2) {
-      this.$results.scrollTop(0);
-    } else if (offsetDelta > this.$results.outerHeight() || offsetDelta < 0) {
-      this.$results.scrollTop(nextOffset);
-    }
-  };
-
-  Results.prototype.template = function (result, container) {
-    var template = this.options.get('templateResult');
-    var escapeMarkup = this.options.get('escapeMarkup');
-
-    var content = template(result, container);
-
-    if (content == null) {
-      container.style.display = 'none';
-    } else if (typeof content === 'string') {
-      container.innerHTML = escapeMarkup(content);
-    } else {
-      $(container).append(content);
-    }
-  };
-
-  return Results;
-});
+define([
+  'jquery',
+  './utils'
+], function ($, Utils) {
+  function Results ($element, options, dataAdapter) {
+    this.$element = $element;
+    this.data = dataAdapter;
+    this.options = options;
+
+    Results.__super__.constructor.call(this);
+  }
+
+  Utils.Extend(Results, Utils.Observable);
+
+  Results.prototype.render = function () {
+    var $results = $(
+      '<ul class="select2-results__options" role="tree"></ul>'
+    );
+
+    if (this.options.get('multiple')) {
+      $results.attr('aria-multiselectable', 'true');
+    }
+
+    this.$results = $results;
+
+    return $results;
+  };
+
+  Results.prototype.clear = function () {
+    this.$results.empty();
+  };
+
+  Results.prototype.displayMessage = function (params) {
+    var escapeMarkup = this.options.get('escapeMarkup');
+
+    this.clear();
+    this.hideLoading();
+
+    var $message = $(
+      '<li role="treeitem" aria-live="assertive"' +
+      ' class="select2-results__option"></li>'
+    );
+
+    var message = this.options.get('translations').get(params.message);
+
+    $message.append(
+      escapeMarkup(
+        message(params.args)
+      )
+    );
+
+    $message[0].className += ' select2-results__message';
+
+    this.$results.append($message);
+  };
+
+  Results.prototype.hideMessages = function () {
+    this.$results.find('.select2-results__message').remove();
+  };
+
+  Results.prototype.append = function (data) {
+    this.hideLoading();
+
+    var $options = [];
+
+    if (data.results == null || data.results.length === 0) {
+      if (this.$results.children().length === 0) {
+        this.trigger('results:message', {
+          message: 'noResults'
+        });
+      }
+
+      return;
+    }
+
+    data.results = this.sort(data.results);
+
+    for (var d = 0; d < data.results.length; d++) {
+      var item = data.results[d];
+
+      var $option = this.option(item);
+
+      $options.push($option);
+    }
+
+    this.$results.append($options);
+  };
+
+  Results.prototype.position = function ($results, $dropdown) {
+    var $resultsContainer = $dropdown.find('.select2-results');
+    $resultsContainer.append($results);
+  };
+
+  Results.prototype.sort = function (data) {
+    var sorter = this.options.get('sorter');
+
+    return sorter(data);
+  };
+
+  Results.prototype.setClasses = function () {
+    var self = this;
+
+    this.data.current(function (selected) {
+      var selectedIds = $.map(selected, function (s) {
+        return s.id.toString();
+      });
+
+      var $options = self.$results
+        .find('.select2-results__option[aria-selected]');
+
+      $options.each(function () {
+        var $option = $(this);
+
+        var item = Utils.GetData(this, 'data');
+
+        // id needs to be converted to a string when comparing
+        var id = '' + item.id;
+
+        if ((item.element != null && item.element.selected) ||
+            (item.element == null && $.inArray(id, selectedIds) > -1)) {
+          $option.attr('aria-selected', 'true');
+        } else {
+          $option.attr('aria-selected', 'false');
+        }
+      });
+
+      var $selected = $options.filter('[aria-selected=true]');
+
+      // Check if there are any selected options
+      if ($selected.length > 0) {
+        // If there are selected options, highlight the first
+        $selected.first().trigger('mouseenter');
+      } else {
+        // If there are no selected options, highlight the first option
+        // in the dropdown
+        $options.first().trigger('mouseenter');
+      }
+    });
+  };
+
+  Results.prototype.showLoading = function (params) {
+    this.hideLoading();
+
+    var loadingMore = this.options.get('translations').get('searching');
+
+    var loading = {
+      disabled: true,
+      loading: true,
+      text: loadingMore(params)
+    };
+    var $loading = this.option(loading);
+    $loading.className += ' loading-results';
+
+    this.$results.prepend($loading);
+  };
+
+  Results.prototype.hideLoading = function () {
+    this.$results.find('.loading-results').remove();
+  };
+
+  Results.prototype.option = function (data) {
+    var option = document.createElement('li');
+    option.className = 'select2-results__option';
+
+    var attrs = {
+      'role': 'treeitem',
+      'aria-selected': 'false'
+    };
+
+    if (data.disabled) {
+      delete attrs['aria-selected'];
+      attrs['aria-disabled'] = 'true';
+    }
+
+    if (data.id == null) {
+      delete attrs['aria-selected'];
+    }
+
+    if (data._resultId != null) {
+      option.id = data._resultId;
+    }
+
+    if (data.title) {
+      option.title = data.title;
+    }
+
+    if (data.children) {
+      attrs.role = 'group';
+      attrs['aria-label'] = data.text;
+      delete attrs['aria-selected'];
+    }
+
+    for (var attr in attrs) {
+      var val = attrs[attr];
+
+      option.setAttribute(attr, val);
+    }
+
+    if (data.children) {
+      var $option = $(option);
+
+      var label = document.createElement('strong');
+      label.className = 'select2-results__group';
+
+      var $label = $(label);
+      this.template(data, label);
+
+      var $children = [];
+
+      for (var c = 0; c < data.children.length; c++) {
+        var child = data.children[c];
+
+        var $child = this.option(child);
+
+        $children.push($child);
+      }
+
+      var $childrenContainer = $('<ul></ul>', {
+        'class': 'select2-results__options select2-results__options--nested'
+      });
+
+      $childrenContainer.append($children);
+
+      $option.append(label);
+      $option.append($childrenContainer);
+    } else {
+      this.template(data, option);
+    }
+
+    Utils.StoreData(option, 'data', data);
+
+    return option;
+  };
+
+  Results.prototype.bind = function (container, $container) {
+    var self = this;
+
+    var id = container.id + '-results';
+
+    this.$results.attr('id', id);
+
+    container.on('results:all', function (params) {
+      self.clear();
+      self.append(params.data);
+
+      if (container.isOpen()) {
+        self.setClasses();
+      }
+    });
+
+    container.on('results:append', function (params) {
+      self.append(params.data);
+
+      if (container.isOpen()) {
+        self.setClasses();
+      }
+    });
+
+    container.on('query', function (params) {
+      self.hideMessages();
+      self.showLoading(params);
+    });
+
+    container.on('select', function () {
+      if (!container.isOpen()) {
+        return;
+      }
+
+      self.setClasses();
+    });
+
+    container.on('unselect', function () {
+      if (!container.isOpen()) {
+        return;
+      }
+
+      self.setClasses();
+    });
+
+    container.on('open', function () {
+      // When the dropdown is open, aria-expended="true"
+      self.$results.attr('aria-expanded', 'true');
+      self.$results.attr('aria-hidden', 'false');
+
+      self.setClasses();
+      self.ensureHighlightVisible();
+    });
+
+    container.on('close', function () {
+      // When the dropdown is closed, aria-expended="false"
+      self.$results.attr('aria-expanded', 'false');
+      self.$results.attr('aria-hidden', 'true');
+      self.$results.removeAttr('aria-activedescendant');
+    });
+
+    container.on('results:toggle', function () {
+      var $highlighted = self.getHighlightedResults();
+
+      if ($highlighted.length === 0) {
+        return;
+      }
+
+      $highlighted.trigger('mouseup');
+    });
+
+    container.on('results:select', function () {
+      var $highlighted = self.getHighlightedResults();
+
+      if ($highlighted.length === 0) {
+        return;
+      }
+
+      var data = Utils.GetData($highlighted[0], 'data');
+
+      if ($highlighted.attr('aria-selected') == 'true') {
+        self.trigger('close', {});
+      } else {
+        self.trigger('select', {
+          data: data
+        });
+      }
+    });
+
+    container.on('results:previous', function () {
+      var $highlighted = self.getHighlightedResults();
+
+      var $options = self.$results.find('[aria-selected]');
+
+      var currentIndex = $options.index($highlighted);
+
+      // If we are already at te top, don't move further
+      if (currentIndex === 0) {
+        return;
+      }
+
+      var nextIndex = currentIndex - 1;
+
+      // If none are highlighted, highlight the first
+      if ($highlighted.length === 0) {
+        nextIndex = 0;
+      }
+
+      var $next = $options.eq(nextIndex);
+
+      $next.trigger('mouseenter');
+
+      var currentOffset = self.$results.offset().top;
+      var nextTop = $next.offset().top;
+      var nextOffset = self.$results.scrollTop() + (nextTop - currentOffset);
+
+      if (nextIndex === 0) {
+        self.$results.scrollTop(0);
+      } else if (nextTop - currentOffset < 0) {
+        self.$results.scrollTop(nextOffset);
+      }
+    });
+
+    container.on('results:next', function () {
+      var $highlighted = self.getHighlightedResults();
+
+      var $options = self.$results.find('[aria-selected]');
+
+      var currentIndex = $options.index($highlighted);
+
+      var nextIndex = currentIndex + 1;
+
+      // If we are at the last option, stay there
+      if (nextIndex >= $options.length) {
+        return;
+      }
+
+      var $next = $options.eq(nextIndex);
+
+      $next.trigger('mouseenter');
+
+      var currentOffset = self.$results.offset().top +
+        self.$results.outerHeight(false);
+      var nextBottom = $next.offset().top + $next.outerHeight(false);
+      var nextOffset = self.$results.scrollTop() + nextBottom - currentOffset;
+
+      if (nextIndex === 0) {
+        self.$results.scrollTop(0);
+      } else if (nextBottom > currentOffset) {
+        self.$results.scrollTop(nextOffset);
+      }
+    });
+
+    container.on('results:focus', function (params) {
+      params.element.addClass('select2-results__option--highlighted');
+    });
+
+    container.on('results:message', function (params) {
+      self.displayMessage(params);
+    });
+
+    if ($.fn.mousewheel) {
+      this.$results.on('mousewheel', function (e) {
+        var top = self.$results.scrollTop();
+
+        var bottom = self.$results.get(0).scrollHeight - top + e.deltaY;
+
+        var isAtTop = e.deltaY > 0 && top - e.deltaY <= 0;
+        var isAtBottom = e.deltaY < 0 && bottom <= self.$results.height();
+
+        if (isAtTop) {
+          self.$results.scrollTop(0);
+
+          e.preventDefault();
+          e.stopPropagation();
+        } else if (isAtBottom) {
+          self.$results.scrollTop(
+            self.$results.get(0).scrollHeight - self.$results.height()
+          );
+
+          e.preventDefault();
+          e.stopPropagation();
+        }
+      });
+    }
+
+    this.$results.on('mouseup', '.select2-results__option[aria-selected]',
+      function (evt) {
+      var $this = $(this);
+
+      var data = Utils.GetData(this, 'data');
+
+      if ($this.attr('aria-selected') === 'true') {
+        if (self.options.get('multiple')) {
+          self.trigger('unselect', {
+            originalEvent: evt,
+            data: data
+          });
+        } else {
+          self.trigger('close', {});
+        }
+
+        return;
+      }
+
+      self.trigger('select', {
+        originalEvent: evt,
+        data: data
+      });
+    });
+
+    this.$results.on('mouseenter', '.select2-results__option[aria-selected]',
+      function (evt) {
+      var data = Utils.GetData(this, 'data');
+
+      self.getHighlightedResults()
+          .removeClass('select2-results__option--highlighted');
+
+      self.trigger('results:focus', {
+        data: data,
+        element: $(this)
+      });
+    });
+  };
+
+  Results.prototype.getHighlightedResults = function () {
+    var $highlighted = this.$results
+    .find('.select2-results__option--highlighted');
+
+    return $highlighted;
+  };
+
+  Results.prototype.destroy = function () {
+    this.$results.remove();
+  };
+
+  Results.prototype.ensureHighlightVisible = function () {
+    var $highlighted = this.getHighlightedResults();
+
+    if ($highlighted.length === 0) {
+      return;
+    }
+
+    var $options = this.$results.find('[aria-selected]');
+
+    var currentIndex = $options.index($highlighted);
+
+    var currentOffset = this.$results.offset().top;
+    var nextTop = $highlighted.offset().top;
+    var nextOffset = this.$results.scrollTop() + (nextTop - currentOffset);
+
+    var offsetDelta = nextTop - currentOffset;
+    nextOffset -= $highlighted.outerHeight(false) * 2;
+
+    if (currentIndex <= 2) {
+      this.$results.scrollTop(0);
+    } else if (offsetDelta > this.$results.outerHeight() || offsetDelta < 0) {
+      this.$results.scrollTop(nextOffset);
+    }
+  };
+
+  Results.prototype.template = function (result, container) {
+    var template = this.options.get('templateResult');
+    var escapeMarkup = this.options.get('escapeMarkup');
+
+    var content = template(result, container);
+
+    if (content == null) {
+      container.style.display = 'none';
+    } else if (typeof content === 'string') {
+      container.innerHTML = escapeMarkup(content);
+    } else {
+      $(container).append(content);
+    }
+  };
+
+  return Results;
+});
diff --git a/src/js/select2/selection/allowClear.js b/src/js/select2/selection/allowClear.js
index da8dbc7e..5c4e1fc8 100644
--- a/src/js/select2/selection/allowClear.js
+++ b/src/js/select2/selection/allowClear.js
@@ -1,98 +1,98 @@
-define([
-  'jquery',
-  '../keys',
-  '../utils'
-], function ($, KEYS, Utils) {
-  function AllowClear () { }
-
-  AllowClear.prototype.bind = function (decorated, container, $container) {
-    var self = this;
-
-    decorated.call(this, container, $container);
-
-    if (this.placeholder == null) {
-      if (this.options.get('debug') && window.console && console.error) {
-        console.error(
-          'Select2: The `allowClear` option should be used in combination ' +
-          'with the `placeholder` option.'
-        );
-      }
-    }
-
-    this.$selection.on('mousedown', '.select2-selection__clear',
-      function (evt) {
-        self._handleClear(evt);
-    });
-
-    container.on('keypress', function (evt) {
-      self._handleKeyboardClear(evt, container);
-    });
-  };
-
-  AllowClear.prototype._handleClear = function (_, evt) {
-    // Ignore the event if it is disabled
-    if (this.options.get('disabled')) {
-      return;
-    }
-
-    var $clear = this.$selection.find('.select2-selection__clear');
-
-    // Ignore the event if nothing has been selected
-    if ($clear.length === 0) {
-      return;
-    }
-
-    evt.stopPropagation();
-
-    var data = Utils.GetData($clear[0], 'data');
-
-    for (var d = 0; d < data.length; d++) {
-      var unselectData = {
-        data: data[d]
-      };
-
-      // Trigger the `unselect` event, so people can prevent it from being
-      // cleared.
-      this.trigger('unselect', unselectData);
-
-      // If the event was prevented, don't clear it out.
-      if (unselectData.prevented) {
-        return;
-      }
-    }
-
-    this.$element.val(this.placeholder.id).trigger('change');
-
-    this.trigger('toggle', {});
-  };
-
-  AllowClear.prototype._handleKeyboardClear = function (_, evt, container) {
-    if (container.isOpen()) {
-      return;
-    }
-
-    if (evt.which == KEYS.DELETE || evt.which == KEYS.BACKSPACE) {
-      this._handleClear(evt);
-    }
-  };
-
-  AllowClear.prototype.update = function (decorated, data) {
-    decorated.call(this, data);
-
-    if (this.$selection.find('.select2-selection__placeholder').length > 0 ||
-        data.length === 0) {
-      return;
-    }
-
-    var $remove = $(
-      '<span class="select2-selection__clear">' +
-        '&times;' +
-      '</span>'
-    );
-    Utils.StoreData($remove[0], 'data', data);
-
-    this.$selection.find('.select2-selection__rendered').prepend($remove);
-  };
-
-  return AllowClear;
-});
+define([
+  'jquery',
+  '../keys',
+  '../utils'
+], function ($, KEYS, Utils) {
+  function AllowClear () { }
+
+  AllowClear.prototype.bind = function (decorated, container, $container) {
+    var self = this;
+
+    decorated.call(this, container, $container);
+
+    if (this.placeholder == null) {
+      if (this.options.get('debug') && window.console && console.error) {
+        console.error(
+          'Select2: The `allowClear` option should be used in combination ' +
+          'with the `placeholder` option.'
+        );
+      }
+    }
+
+    this.$selection.on('mousedown', '.select2-selection__clear',
+      function (evt) {
+        self._handleClear(evt);
+    });
+
+    container.on('keypress', function (evt) {
+      self._handleKeyboardClear(evt, container);
+    });
+  };
+
+  AllowClear.prototype._handleClear = function (_, evt) {
+    // Ignore the event if it is disabled
+    if (this.options.get('disabled')) {
+      return;
+    }
+
+    var $clear = this.$selection.find('.select2-selection__clear');
+
+    // Ignore the event if nothing has been selected
+    if ($clear.length === 0) {
+      return;
+    }
+
+    evt.stopPropagation();
+
+    var data = Utils.GetData($clear[0], 'data');
+
+    for (var d = 0; d < data.length; d++) {
+      var unselectData = {
+        data: data[d]
+      };
+
+      // Trigger the `unselect` event, so people can prevent it from being
+      // cleared.
+      this.trigger('unselect', unselectData);
+
+      // If the event was prevented, don't clear it out.
+      if (unselectData.prevented) {
+        return;
+      }
+    }
+
+    this.$element.val(this.placeholder.id).trigger('change');
+
+    this.trigger('toggle', {});
+  };
+
+  AllowClear.prototype._handleKeyboardClear = function (_, evt, container) {
+    if (container.isOpen()) {
+      return;
+    }
+
+    if (evt.which == KEYS.DELETE || evt.which == KEYS.BACKSPACE) {
+      this._handleClear(evt);
+    }
+  };
+
+  AllowClear.prototype.update = function (decorated, data) {
+    decorated.call(this, data);
+
+    if (this.$selection.find('.select2-selection__placeholder').length > 0 ||
+        data.length === 0) {
+      return;
+    }
+
+    var $remove = $(
+      '<span class="select2-selection__clear">' +
+        '&times;' +
+      '</span>'
+    );
+    Utils.StoreData($remove[0], 'data', data);
+
+    this.$selection.find('.select2-selection__rendered').prepend($remove);
+  };
+
+  return AllowClear;
+});
diff --git a/src/js/select2/selection/base.js b/src/js/select2/selection/base.js
index d341e9aa..2efb1039 100644
--- a/src/js/select2/selection/base.js
+++ b/src/js/select2/selection/base.js
@@ -1,158 +1,158 @@
-define([
-  'jquery',
-  '../utils',
-  '../keys'
-], function ($, Utils, KEYS) {
-  function BaseSelection ($element, options) {
-    this.$element = $element;
-    this.options = options;
-
-    BaseSelection.__super__.constructor.call(this);
-  }
-
-  Utils.Extend(BaseSelection, Utils.Observable);
-
-  BaseSelection.prototype.render = function () {
-    var $selection = $(
-      '<span class="select2-selection" role="combobox" ' +
-      ' aria-haspopup="true" aria-expanded="false">' +
-      '</span>'
-    );
-
-    this._tabindex = 0;
-
-    if (Utils.GetData(this.$element[0], 'old-tabindex') != null) {
-      this._tabindex = Utils.GetData(this.$element[0], 'old-tabindex');
-    } else if (this.$element.attr('tabindex') != null) {
-      this._tabindex = this.$element.attr('tabindex');
-    }
-
-    $selection.attr('title', this.$element.attr('title'));
-    $selection.attr('tabindex', this._tabindex);
-
-    this.$selection = $selection;
-
-    return $selection;
-  };
-
-  BaseSelection.prototype.bind = function (container, $container) {
-    var self = this;
-
-    var id = container.id + '-container';
-    var resultsId = container.id + '-results';
-
-    this.container = container;
-
-    this.$selection.on('focus', function (evt) {
-      self.trigger('focus', evt);
-    });
-
-    this.$selection.on('blur', function (evt) {
-      self._handleBlur(evt);
-    });
-
-    this.$selection.on('keydown', function (evt) {
-      self.trigger('keypress', evt);
-
-      if (evt.which === KEYS.SPACE) {
-        evt.preventDefault();
-      }
-    });
-
-    container.on('results:focus', function (params) {
-      self.$selection.attr('aria-activedescendant', params.data._resultId);
-    });
-
-    container.on('selection:update', function (params) {
-      self.update(params.data);
-    });
-
-    container.on('open', function () {
-      // When the dropdown is open, aria-expanded="true"
-      self.$selection.attr('aria-expanded', 'true');
-      self.$selection.attr('aria-owns', resultsId);
-
-      self._attachCloseHandler(container);
-    });
-
-    container.on('close', function () {
-      // When the dropdown is closed, aria-expanded="false"
-      self.$selection.attr('aria-expanded', 'false');
-      self.$selection.removeAttr('aria-activedescendant');
-      self.$selection.removeAttr('aria-owns');
-
-      self.$selection.focus();
-
-      self._detachCloseHandler(container);
-    });
-
-    container.on('enable', function () {
-      self.$selection.attr('tabindex', self._tabindex);
-    });
-
-    container.on('disable', function () {
-      self.$selection.attr('tabindex', '-1');
-    });
-  };
-
-  BaseSelection.prototype._handleBlur = function (evt) {
-    var self = this;
-
-    // This needs to be delayed as the active element is the body when the tab
-    // key is pressed, possibly along with others.
-    window.setTimeout(function () {
-      // Don't trigger `blur` if the focus is still in the selection
-      if (
-        (document.activeElement == self.$selection[0]) ||
-        ($.contains(self.$selection[0], document.activeElement))
-      ) {
-        return;
-      }
-
-      self.trigger('blur', evt);
-    }, 1);
-  };
-
-  BaseSelection.prototype._attachCloseHandler = function (container) {
-    var self = this;
-
-    $(document.body).on('mousedown.select2.' + container.id, function (e) {
-      var $target = $(e.target);
-
-      var $select = $target.closest('.select2');
-
-      var $all = $('.select2.select2-container--open');
-
-      $all.each(function () {
-        var $this = $(this);
-
-        if (this == $select[0]) {
-          return;
-        }
-
-        var $element = Utils.GetData(this, 'element');
-
-        $element.select2('close');
-      });
-    });
-  };
-
-  BaseSelection.prototype._detachCloseHandler = function (container) {
-    $(document.body).off('mousedown.select2.' + container.id);
-  };
-
-  BaseSelection.prototype.position = function ($selection, $container) {
-    var $selectionContainer = $container.find('.selection');
-    $selectionContainer.append($selection);
-  };
-
-  BaseSelection.prototype.destroy = function () {
-    this._detachCloseHandler(this.container);
-  };
-
-  BaseSelection.prototype.update = function (data) {
-    throw new Error('The `update` method must be defined in child classes.');
-  };
-
-  return BaseSelection;
-});
+define([
+  'jquery',
+  '../utils',
+  '../keys'
+], function ($, Utils, KEYS) {
+  function BaseSelection ($element, options) {
+    this.$element = $element;
+    this.options = options;
+
+    BaseSelection.__super__.constructor.call(this);
+  }
+
+  Utils.Extend(BaseSelection, Utils.Observable);
+
+  BaseSelection.prototype.render = function () {
+    var $selection = $(
+      '<span class="select2-selection" role="combobox" ' +
+      ' aria-haspopup="true" aria-expanded="false">' +
+      '</span>'
+    );
+
+    this._tabindex = 0;
+
+    if (Utils.GetData(this.$element[0], 'old-tabindex') != null) {
+      this._tabindex = Utils.GetData(this.$element[0], 'old-tabindex');
+    } else if (this.$element.attr('tabindex') != null) {
+      this._tabindex = this.$element.attr('tabindex');
+    }
+
+    $selection.attr('title', this.$element.attr('title'));
+    $selection.attr('tabindex', this._tabindex);
+
+    this.$selection = $selection;
+
+    return $selection;
+  };
+
+  BaseSelection.prototype.bind = function (container, $container) {
+    var self = this;
+
+    var id = container.id + '-container';
+    var resultsId = container.id + '-results';
+
+    this.container = container;
+
+    this.$selection.on('focus', function (evt) {
+      self.trigger('focus', evt);
+    });
+
+    this.$selection.on('blur', function (evt) {
+      self._handleBlur(evt);
+    });
+
+    this.$selection.on('keydown', function (evt) {
+      self.trigger('keypress', evt);
+
+      if (evt.which === KEYS.SPACE) {
+        evt.preventDefault();
+      }
+    });
+
+    container.on('results:focus', function (params) {
+      self.$selection.attr('aria-activedescendant', params.data._resultId);
+    });
+
+    container.on('selection:update', function (params) {
+      self.update(params.data);
+    });
+
+    container.on('open', function () {
+      // When the dropdown is open, aria-expanded="true"
+      self.$selection.attr('aria-expanded', 'true');
+      self.$selection.attr('aria-owns', resultsId);
+
+      self._attachCloseHandler(container);
+    });
+
+    container.on('close', function () {
+      // When the dropdown is closed, aria-expanded="false"
+      self.$selection.attr('aria-expanded', 'false');
+      self.$selection.removeAttr('aria-activedescendant');
+      self.$selection.removeAttr('aria-owns');
+
+      self.$selection.focus();
+
+      self._detachCloseHandler(container);
+    });
+
+    container.on('enable', function () {
+      self.$selection.attr('tabindex', self._tabindex);
+    });
+
+    container.on('disable', function () {
+      self.$selection.attr('tabindex', '-1');
+    });
+  };
+
+  BaseSelection.prototype._handleBlur = function (evt) {
+    var self = this;
+
+    // This needs to be delayed as the active element is the body when the tab
+    // key is pressed, possibly along with others.
+    window.setTimeout(function () {
+      // Don't trigger `blur` if the focus is still in the selection
+      if (
+        (document.activeElement == self.$selection[0]) ||
+        ($.contains(self.$selection[0], document.activeElement))
+      ) {
+        return;
+      }
+
+      self.trigger('blur', evt);
+    }, 1);
+  };
+
+  BaseSelection.prototype._attachCloseHandler = function (container) {
+    var self = this;
+
+    $(document.body).on('mousedown.select2.' + container.id, function (e) {
+      var $target = $(e.target);
+
+      var $select = $target.closest('.select2');
+
+      var $all = $('.select2.select2-container--open');
+
+      $all.each(function () {
+        var $this = $(this);
+
+        if (this == $select[0]) {
+          return;
+        }
+
+        var $element = Utils.GetData(this, 'element');
+
+        $element.select2('close');
+      });
+    });
+  };
+
+  BaseSelection.prototype._detachCloseHandler = function (container) {
+    $(document.body).off('mousedown.select2.' + container.id);
+  };
+
+  BaseSelection.prototype.position = function ($selection, $container) {
+    var $selectionContainer = $container.find('.selection');
+    $selectionContainer.append($selection);
+  };
+
+  BaseSelection.prototype.destroy = function () {
+    this._detachCloseHandler(this.container);
+  };
+
+  BaseSelection.prototype.update = function (data) {
+    throw new Error('The `update` method must be defined in child classes.');
+  };
+
+  return BaseSelection;
+});
diff --git a/src/js/select2/selection/multiple.js b/src/js/select2/selection/multiple.js
index 690703db..df0cb08a 100644
--- a/src/js/select2/selection/multiple.js
+++ b/src/js/select2/selection/multiple.js
@@ -1,109 +1,109 @@
-define([
-  'jquery',
-  './base',
-  '../utils'
-], function ($, BaseSelection, Utils) {
-  function MultipleSelection ($element, options) {
-    MultipleSelection.__super__.constructor.apply(this, arguments);
-  }
-
-  Utils.Extend(MultipleSelection, BaseSelection);
-
-  MultipleSelection.prototype.render = function () {
-    var $selection = MultipleSelection.__super__.render.call(this);
-
-    $selection.addClass('select2-selection--multiple');
-
-    $selection.html(
-      '<ul class="select2-selection__rendered"></ul>'
-    );
-
-    return $selection;
-  };
-
-  MultipleSelection.prototype.bind = function (container, $container) {
-    var self = this;
-
-    MultipleSelection.__super__.bind.apply(this, arguments);
-
-    this.$selection.on('click', function (evt) {
-      self.trigger('toggle', {
-        originalEvent: evt
-      });
-    });
-
-    this.$selection.on(
-      'click',
-      '.select2-selection__choice__remove',
-      function (evt) {
-        // Ignore the event if it is disabled
-        if (self.options.get('disabled')) {
-          return;
-        }
-
-        var $remove = $(this);
-        var $selection = $remove.parent();
-
-        var data = Utils.GetData($selection[0], 'data');
-
-        self.trigger('unselect', {
-          originalEvent: evt,
-          data: data
-        });
-      }
-    );
-  };
-
-  MultipleSelection.prototype.clear = function () {
-    this.$selection.find('.select2-selection__rendered').empty();
-  };
-
-  MultipleSelection.prototype.display = function (data, container) {
-    var template = this.options.get('templateSelection');
-    var escapeMarkup = this.options.get('escapeMarkup');
-
-    return escapeMarkup(template(data, container));
-  };
-
-  MultipleSelection.prototype.selectionContainer = function () {
-    var $container = $(
-      '<li class="select2-selection__choice">' +
-        '<span class="select2-selection__choice__remove" role="presentation">' +
-          '&times;' +
-        '</span>' +
-      '</li>'
-    );
-
-    return $container;
-  };
-
-  MultipleSelection.prototype.update = function (data) {
-    this.clear();
-
-    if (data.length === 0) {
-      return;
-    }
-
-    var $selections = [];
-
-    for (var d = 0; d < data.length; d++) {
-      var selection = data[d];
-
-      var $selection = this.selectionContainer();
-      var formatted = this.display(selection, $selection);
-
-      $selection.append(formatted);
-      $selection.prop('title', selection.title || selection.text);
-
-      Utils.StoreData($selection[0], 'data', selection);
-
-      $selections.push($selection);
-    }
-
-    var $rendered = this.$selection.find('.select2-selection__rendered');
-
-    Utils.appendMany($rendered, $selections);
-  };
-
-  return MultipleSelection;
-});
+define([
+  'jquery',
+  './base',
+  '../utils'
+], function ($, BaseSelection, Utils) {
+  function MultipleSelection ($element, options) {
+    MultipleSelection.__super__.constructor.apply(this, arguments);
+  }
+
+  Utils.Extend(MultipleSelection, BaseSelection);
+
+  MultipleSelection.prototype.render = function () {
+    var $selection = MultipleSelection.__super__.render.call(this);
+
+    $selection.addClass('select2-selection--multiple');
+
+    $selection.html(
+      '<ul class="select2-selection__rendered"></ul>'
+    );
+
+    return $selection;
+  };
+
+  MultipleSelection.prototype.bind = function (container, $container) {
+    var self = this;
+
+    MultipleSelection.__super__.bind.apply(this, arguments);
+
+    this.$selection.on('click', function (evt) {
+      self.trigger('toggle', {
+        originalEvent: evt
+      });
+    });
+
+    this.$selection.on(
+      'click',
+      '.select2-selection__choice__remove',
+      function (evt) {
+        // Ignore the event if it is disabled
+        if (self.options.get('disabled')) {
+          return;
+        }
+
+        var $remove = $(this);
+        var $selection = $remove.parent();
+
+        var data = Utils.GetData($selection[0], 'data');
+
+        self.trigger('unselect', {
+          originalEvent: evt,
+          data: data
+        });
+      }
+    );
+  };
+
+  MultipleSelection.prototype.clear = function () {
+    this.$selection.find('.select2-selection__rendered').empty();
+  };
+
+  MultipleSelection.prototype.display = function (data, container) {
+    var template = this.options.get('templateSelection');
+    var escapeMarkup = this.options.get('escapeMarkup');
+
+    return escapeMarkup(template(data, container));
+  };
+
+  MultipleSelection.prototype.selectionContainer = function () {
+    var $container = $(
+      '<li class="select2-selection__choice">' +
+        '<span class="select2-selection__choice__remove" role="presentation">' +
+          '&times;' +
+        '</span>' +
+      '</li>'
+    );
+
+    return $container;
+  };
+
+  MultipleSelection.prototype.update = function (data) {
+    this.clear();
+
+    if (data.length === 0) {
+      return;
+    }
+
+    var $selections = [];
+
+    for (var d = 0; d < data.length; d++) {
+      var selection = data[d];
+
+      var $selection = this.selectionContainer();
+      var formatted = this.display(selection, $selection);
+
+      $selection.append(formatted);
+      $selection.prop('title', selection.title || selection.text);
+
+      Utils.StoreData($selection[0], 'data', selection);
+
+      $selections.push($selection);
+    }
+
+    var $rendered = this.$selection.find('.select2-selection__rendered');
+
+    Utils.appendMany($rendered, $selections);
+  };
+
+  return MultipleSelection;
+});
diff --git a/src/js/select2/selection/search.js b/src/js/select2/selection/search.js
index 8fd0deff..274cac0e 100644
--- a/src/js/select2/selection/search.js
+++ b/src/js/select2/selection/search.js
@@ -1,222 +1,222 @@
-define([
-  'jquery',
-  '../utils',
-  '../keys'
-], function ($, Utils, KEYS) {
-  function Search (decorated, $element, options) {
-    decorated.call(this, $element, options);
-  }
-
-  Search.prototype.render = function (decorated) {
-    var $search = $(
-      '<li class="select2-search select2-search--inline">' +
-        '<input class="select2-search__field" type="search" tabindex="-1"' +
-        ' autocomplete="off" autocorrect="off" autocapitalize="off"' +
-        ' spellcheck="false" role="textbox" aria-autocomplete="list" />' +
-      '</li>'
-    );
-
-    this.$searchContainer = $search;
-    this.$search = $search.find('input');
-
-    var $rendered = decorated.call(this);
-
-    this._transferTabIndex();
-
-    return $rendered;
-  };
-
-  Search.prototype.bind = function (decorated, container, $container) {
-    var self = this;
-
-    decorated.call(this, container, $container);
-
-    container.on('open', function () {
-      self.$search.trigger('focus');
-    });
-
-    container.on('close', function () {
-      self.$search.val('');
-      self.$search.removeAttr('aria-activedescendant');
-      self.$search.trigger('focus');
-    });
-
-    container.on('enable', function () {
-      self.$search.prop('disabled', false);
-
-      self._transferTabIndex();
-    });
-
-    container.on('disable', function () {
-      self.$search.prop('disabled', true);
-    });
-
-    container.on('focus', function (evt) {
-      self.$search.trigger('focus');
-    });
-
-    container.on('results:focus', function (params) {
-      self.$search.attr('aria-activedescendant', params.id);
-    });
-
-    this.$selection.on('focusin', '.select2-search--inline', function (evt) {
-      self.trigger('focus', evt);
-    });
-
-    this.$selection.on('focusout', '.select2-search--inline', function (evt) {
-      self._handleBlur(evt);
-    });
-
-    this.$selection.on('keydown', '.select2-search--inline', function (evt) {
-      evt.stopPropagation();
-
-      self.trigger('keypress', evt);
-
-      self._keyUpPrevented = evt.isDefaultPrevented();
-
-      var key = evt.which;
-
-      if (key === KEYS.BACKSPACE && self.$search.val() === '') {
-        var $previousChoice = self.$searchContainer
-          .prev('.select2-selection__choice');
-
-        if ($previousChoice.length > 0) {
-          var item = Utils.GetData($previousChoice[0], 'data');
-
-          self.searchRemoveChoice(item);
-
-          evt.preventDefault();
-        }
-      }
-    });
-
-    // Try to detect the IE version should the `documentMode` property that
-    // is stored on the document. This is only implemented in IE and is
-    // slightly cleaner than doing a user agent check.
-    // This property is not available in Edge, but Edge also doesn't have
-    // this bug.
-    var msie = document.documentMode;
-    var disableInputEvents = msie && msie <= 11;
-
-    // Workaround for browsers which do not support the `input` event
-    // This will prevent double-triggering of events for browsers which support
-    // both the `keyup` and `input` events.
-    this.$selection.on(
-      'input.searchcheck',
-      '.select2-search--inline',
-      function (evt) {
-        // IE will trigger the `input` event when a placeholder is used on a
-        // search box. To get around this issue, we are forced to ignore all
-        // `input` events in IE and keep using `keyup`.
-        if (disableInputEvents) {
-          self.$selection.off('input.search input.searchcheck');
-          return;
-        }
-
-        // Unbind the duplicated `keyup` event
-        self.$selection.off('keyup.search');
-      }
-    );
-
-    this.$selection.on(
-      'keyup.search input.search',
-      '.select2-search--inline',
-      function (evt) {
-        // IE will trigger the `input` event when a placeholder is used on a
-        // search box. To get around this issue, we are forced to ignore all
-        // `input` events in IE and keep using `keyup`.
-        if (disableInputEvents && evt.type === 'input') {
-          self.$selection.off('input.search input.searchcheck');
-          return;
-        }
-
-        var key = evt.which;
-
-        // We can freely ignore events from modifier keys
-        if (key == KEYS.SHIFT || key == KEYS.CTRL || key == KEYS.ALT) {
-          return;
-        }
-
-        // Tabbing will be handled during the `keydown` phase
-        if (key == KEYS.TAB) {
-          return;
-        }
-
-        self.handleSearch(evt);
-      }
-    );
-  };
-
-  /**
-   * This method will transfer the tabindex attribute from the rendered
-   * selection to the search box. This allows for the search box to be used as
-   * the primary focus instead of the selection container.
-   *
-   * @private
-   */
-  Search.prototype._transferTabIndex = function (decorated) {
-    this.$search.attr('tabindex', this.$selection.attr('tabindex'));
-    this.$selection.attr('tabindex', '-1');
-  };
-
-  Search.prototype.createPlaceholder = function (decorated, placeholder) {
-    this.$search.attr('placeholder', placeholder.text);
-  };
-
-  Search.prototype.update = function (decorated, data) {
-    var searchHadFocus = this.$search[0] == document.activeElement;
-
-    this.$search.attr('placeholder', '');
-
-    decorated.call(this, data);
-
-    this.$selection.find('.select2-selection__rendered')
-                   .append(this.$searchContainer);
-
-    this.resizeSearch();
-    if (searchHadFocus) {
-      this.$search.focus();
-    }
-  };
-
-  Search.prototype.handleSearch = function () {
-    this.resizeSearch();
-
-    if (!this._keyUpPrevented) {
-      var input = this.$search.val();
-
-      this.trigger('query', {
-        term: input
-      });
-    }
-
-    this._keyUpPrevented = false;
-  };
-
-  Search.prototype.searchRemoveChoice = function (decorated, item) {
-    this.trigger('unselect', {
-      data: item
-    });
-
-    this.$search.val(item.text);
-    this.handleSearch();
-  };
-
-  Search.prototype.resizeSearch = function () {
-    this.$search.css('width', '25px');
-
-    var width = '';
-
-    if (this.$search.attr('placeholder') !== '') {
-      width = this.$selection.find('.select2-selection__rendered').innerWidth();
-    } else {
-      var minimumWidth = this.$search.val().length + 1;
-
-      width = (minimumWidth * 0.75) + 'em';
-    }
-
-    this.$search.css('width', width);
-  };
-
-  return Search;
-});
+define([
+  'jquery',
+  '../utils',
+  '../keys'
+], function ($, Utils, KEYS) {
+  function Search (decorated, $element, options) {
+    decorated.call(this, $element, options);
+  }
+
+  Search.prototype.render = function (decorated) {
+    var $search = $(
+      '<li class="select2-search select2-search--inline">' +
+        '<input class="select2-search__field" type="search" tabindex="-1"' +
+        ' autocomplete="off" autocorrect="off" autocapitalize="off"' +
+        ' spellcheck="false" role="textbox" aria-autocomplete="list" />' +
+      '</li>'
+    );
+
+    this.$searchContainer = $search;
+    this.$search = $search.find('input');
+
+    var $rendered = decorated.call(this);
+
+    this._transferTabIndex();
+
+    return $rendered;
+  };
+
+  Search.prototype.bind = function (decorated, container, $container) {
+    var self = this;
+
+    decorated.call(this, container, $container);
+
+    container.on('open', function () {
+      self.$search.trigger('focus');
+    });
+
+    container.on('close', function () {
+      self.$search.val('');
+      self.$search.removeAttr('aria-activedescendant');
+      self.$search.trigger('focus');
+    });
+
+    container.on('enable', function () {
+      self.$search.prop('disabled', false);
+
+      self._transferTabIndex();
+    });
+
+    container.on('disable', function () {
+      self.$search.prop('disabled', true);
+    });
+
+    container.on('focus', function (evt) {
+      self.$search.trigger('focus');
+    });
+
+    container.on('results:focus', function (params) {
+      self.$search.attr('aria-activedescendant', params.id);
+    });
+
+    this.$selection.on('focusin', '.select2-search--inline', function (evt) {
+      self.trigger('focus', evt);
+    });
+
+    this.$selection.on('focusout', '.select2-search--inline', function (evt) {
+      self._handleBlur(evt);
+    });
+
+    this.$selection.on('keydown', '.select2-search--inline', function (evt) {
+      evt.stopPropagation();
+
+      self.trigger('keypress', evt);
+
+      self._keyUpPrevented = evt.isDefaultPrevented();
+
+      var key = evt.which;
+
+      if (key === KEYS.BACKSPACE && self.$search.val() === '') {
+        var $previousChoice = self.$searchContainer
+          .prev('.select2-selection__choice');
+
+        if ($previousChoice.length > 0) {
+          var item = Utils.GetData($previousChoice[0], 'data');
+
+          self.searchRemoveChoice(item);
+
+          evt.preventDefault();
+        }
+      }
+    });
+
+    // Try to detect the IE version should the `documentMode` property that
+    // is stored on the document. This is only implemented in IE and is
+    // slightly cleaner than doing a user agent check.
+    // This property is not available in Edge, but Edge also doesn't have
+    // this bug.
+    var msie = document.documentMode;
+    var disableInputEvents = msie && msie <= 11;
+
+    // Workaround for browsers which do not support the `input` event
+    // This will prevent double-triggering of events for browsers which support
+    // both the `keyup` and `input` events.
+    this.$selection.on(
+      'input.searchcheck',
+      '.select2-search--inline',
+      function (evt) {
+        // IE will trigger the `input` event when a placeholder is used on a
+        // search box. To get around this issue, we are forced to ignore all
+        // `input` events in IE and keep using `keyup`.
+        if (disableInputEvents) {
+          self.$selection.off('input.search input.searchcheck');
+          return;
+        }
+
+        // Unbind the duplicated `keyup` event
+        self.$selection.off('keyup.search');
+      }
+    );
+
+    this.$selection.on(
+      'keyup.search input.search',
+      '.select2-search--inline',
+      function (evt) {
+        // IE will trigger the `input` event when a placeholder is used on a
+        // search box. To get around this issue, we are forced to ignore all
+        // `input` events in IE and keep using `keyup`.
+        if (disableInputEvents && evt.type === 'input') {
+          self.$selection.off('input.search input.searchcheck');
+          return;
+        }
+
+        var key = evt.which;
+
+        // We can freely ignore events from modifier keys
+        if (key == KEYS.SHIFT || key == KEYS.CTRL || key == KEYS.ALT) {
+          return;
+        }
+
+        // Tabbing will be handled during the `keydown` phase
+        if (key == KEYS.TAB) {
+          return;
+        }
+
+        self.handleSearch(evt);
+      }
+    );
+  };
+
+  /**
+   * This method will transfer the tabindex attribute from the rendered
+   * selection to the search box. This allows for the search box to be used as
+   * the primary focus instead of the selection container.
+   *
+   * @private
+   */
+  Search.prototype._transferTabIndex = function (decorated) {
+    this.$search.attr('tabindex', this.$selection.attr('tabindex'));
+    this.$selection.attr('tabindex', '-1');
+  };
+
+  Search.prototype.createPlaceholder = function (decorated, placeholder) {
+    this.$search.attr('placeholder', placeholder.text);
+  };
+
+  Search.prototype.update = function (decorated, data) {
+    var searchHadFocus = this.$search[0] == document.activeElement;
+
+    this.$search.attr('placeholder', '');
+
+    decorated.call(this, data);
+
+    this.$selection.find('.select2-selection__rendered')
+                   .append(this.$searchContainer);
+
+    this.resizeSearch();
+    if (searchHadFocus) {
+      this.$search.focus();
+    }
+  };
+
+  Search.prototype.handleSearch = function () {
+    this.resizeSearch();
+
+    if (!this._keyUpPrevented) {
+      var input = this.$search.val();
+
+      this.trigger('query', {
+        term: input
+      });
+    }
+
+    this._keyUpPrevented = false;
+  };
+
+  Search.prototype.searchRemoveChoice = function (decorated, item) {
+    this.trigger('unselect', {
+      data: item
+    });
+
+    this.$search.val(item.text);
+    this.handleSearch();
+  };
+
+  Search.prototype.resizeSearch = function () {
+    this.$search.css('width', '25px');
+
+    var width = '';
+
+    if (this.$search.attr('placeholder') !== '') {
+      width = this.$selection.find('.select2-selection__rendered').innerWidth();
+    } else {
+      var minimumWidth = this.$search.val().length + 1;
+
+      width = (minimumWidth * 0.75) + 'em';
+    }
+
+    this.$search.css('width', width);
+  };
+
+  return Search;
+});
diff --git a/src/js/select2/utils.js b/src/js/select2/utils.js
index ca42a8da..80b1e8dc 100644
--- a/src/js/select2/utils.js
+++ b/src/js/select2/utils.js
@@ -1,325 +1,325 @@
-define([
-  'jquery'
-], function ($) {
-  var Utils = {};
-
-  Utils.Extend = function (ChildClass, SuperClass) {
-    var __hasProp = {}.hasOwnProperty;
-
-    function BaseConstructor () {
-      this.constructor = ChildClass;
-    }
-
-    for (var key in SuperClass) {
-      if (__hasProp.call(SuperClass, key)) {
-        ChildClass[key] = SuperClass[key];
-      }
-    }
-
-    BaseConstructor.prototype = SuperClass.prototype;
-    ChildClass.prototype = new BaseConstructor();
-    ChildClass.__super__ = SuperClass.prototype;
-
-    return ChildClass;
-  };
-
-  function getMethods (theClass) {
-    var proto = theClass.prototype;
-
-    var methods = [];
-
-    for (var methodName in proto) {
-      var m = proto[methodName];
-
-      if (typeof m !== 'function') {
-        continue;
-      }
-
-      if (methodName === 'constructor') {
-        continue;
-      }
-
-      methods.push(methodName);
-    }
-
-    return methods;
-  }
-
-  Utils.Decorate = function (SuperClass, DecoratorClass) {
-    var decoratedMethods = getMethods(DecoratorClass);
-    var superMethods = getMethods(SuperClass);
-
-    function DecoratedClass () {
-      var unshift = Array.prototype.unshift;
-
-      var argCount = DecoratorClass.prototype.constructor.length;
-
-      var calledConstructor = SuperClass.prototype.constructor;
-
-      if (argCount > 0) {
-        unshift.call(arguments, SuperClass.prototype.constructor);
-
-        calledConstructor = DecoratorClass.prototype.constructor;
-      }
-
-      calledConstructor.apply(this, arguments);
-    }
-
-    DecoratorClass.displayName = SuperClass.displayName;
-
-    function ctr () {
-      this.constructor = DecoratedClass;
-    }
-
-    DecoratedClass.prototype = new ctr();
-
-    for (var m = 0; m < superMethods.length; m++) {
-        var superMethod = superMethods[m];
-
-        DecoratedClass.prototype[superMethod] =
-          SuperClass.prototype[superMethod];
-    }
-
-    var calledMethod = function (methodName) {
-      // Stub out the original method if it's not decorating an actual method
-      var originalMethod = function () {};
-
-      if (methodName in DecoratedClass.prototype) {
-        originalMethod = DecoratedClass.prototype[methodName];
-      }
-
-      var decoratedMethod = DecoratorClass.prototype[methodName];
-
-      return function () {
-        var unshift = Array.prototype.unshift;
-
-        unshift.call(arguments, originalMethod);
-
-        return decoratedMethod.apply(this, arguments);
-      };
-    };
-
-    for (var d = 0; d < decoratedMethods.length; d++) {
-      var decoratedMethod = decoratedMethods[d];
-
-      DecoratedClass.prototype[decoratedMethod] = calledMethod(decoratedMethod);
-    }
-
-    return DecoratedClass;
-  };
-
-  var Observable = function () {
-    this.listeners = {};
-  };
-
-  Observable.prototype.on = function (event, callback) {
-    this.listeners = this.listeners || {};
-
-    if (event in this.listeners) {
-      this.listeners[event].push(callback);
-    } else {
-      this.listeners[event] = [callback];
-    }
-  };
-
-  Observable.prototype.trigger = function (event) {
-    var slice = Array.prototype.slice;
-
-    this.listeners = this.listeners || {};
-
-    if (event in this.listeners) {
-      this.invoke(this.listeners[event], slice.call(arguments, 1));
-    }
-
-    if ('*' in this.listeners) {
-      this.invoke(this.listeners['*'], arguments);
-    }
-  };
-
-  Observable.prototype.invoke = function (listeners, params) {
-    for (var i = 0, len = listeners.length; i < len; i++) {
-      listeners[i].apply(this, params);
-    }
-  };
-
-  Utils.Observable = Observable;
-
-  Utils.generateChars = function (length) {
-    var chars = '';
-
-    for (var i = 0; i < length; i++) {
-      var randomChar = Math.floor(Math.random() * 36);
-      chars += randomChar.toString(36);
-    }
-
-    return chars;
-  };
-
-  Utils.bind = function (func, context) {
-    return function () {
-      func.apply(context, arguments);
-    };
-  };
-
-  Utils._convertData = function (data) {
-    for (var originalKey in data) {
-      var keys = originalKey.split('-');
-
-      var dataLevel = data;
-
-      if (keys.length === 1) {
-        continue;
-      }
-
-      for (var k = 0; k < keys.length; k++) {
-        var key = keys[k];
-
-        // Lowercase the first letter
-        // By default, dash-separated becomes camelCase
-        key = key.substring(0, 1).toLowerCase() + key.substring(1);
-
-        if (!(key in dataLevel)) {
-          dataLevel[key] = {};
-        }
-
-        if (k == keys.length - 1) {
-          dataLevel[key] = data[originalKey];
-        }
-
-        dataLevel = dataLevel[key];
-      }
-
-      delete data[originalKey];
-    }
-
-    return data;
-  };
-
-  Utils.hasScroll = function (index, el) {
-    // Adapted from the function created by @ShadowScripter
-    // and adapted by @BillBarry on the Stack Exchange Code Review website.
-    // The original code can be found at
-    // http://codereview.stackexchange.com/q/13338
-    // and was designed to be used with the Sizzle selector engine.
-
-    var $el = $(el);
-    var overflowX = el.style.overflowX;
-    var overflowY = el.style.overflowY;
-
-    //Check both x and y declarations
-    if (overflowX === overflowY &&
-        (overflowY === 'hidden' || overflowY === 'visible')) {
-      return false;
-    }
-
-    if (overflowX === 'scroll' || overflowY === 'scroll') {
-      return true;
-    }
-
-    return ($el.innerHeight() < el.scrollHeight ||
-      $el.innerWidth() < el.scrollWidth);
-  };
-
-  Utils.escapeMarkup = function (markup) {
-    var replaceMap = {
-      '\\': '&#92;',
-      '&': '&amp;',
-      '<': '&lt;',
-      '>': '&gt;',
-      '"': '&quot;',
-      '\'': '&#39;',
-      '/': '&#47;'
-    };
-
-    // Do not try to escape the markup if it's not a string
-    if (typeof markup !== 'string') {
-      return markup;
-    }
-
-    return String(markup).replace(/[&<>"'\/\\]/g, function (match) {
-      return replaceMap[match];
-    });
-  };
-
-  // Append an array of jQuery nodes to a given element.
-  Utils.appendMany = function ($element, $nodes) {
-    // jQuery 1.7.x does not support $.fn.append() with an array
-    // Fall back to a jQuery object collection using $.fn.add()
-    if ($.fn.jquery.substr(0, 3) === '1.7') {
-      var $jqNodes = $();
-
-      $.map($nodes, function (node) {
-        $jqNodes = $jqNodes.add(node);
-      });
-
-      $nodes = $jqNodes;
-    }
-
-    $element.append($nodes);
-  };
-
-  // Cache objects in Utils.__cache instead of $.data
-  Utils.__cache = {};
-
-
-  var id = 0;
-  Utils.GetUniqueElementId = function (element) {
-    // Get a unique element Id. If element has no id, 
-    // creates a new unique number, stores it in the id 
-    // attribute and returns the new id. 
-    // If an id already exists, it simply returns it.
-
-    var select2Id = element.getAttribute('data-select2-id');
-    if (select2Id == null) {
-        // If element has id, use it.
-        if (element.id) {
-            select2Id = element.id;
-            element.setAttribute('data-select2-id', select2Id);
-        } else {
-            element.setAttribute('data-select2-id', ++id);
-            select2Id = id.toString();
-        }
-    }
-    return select2Id;
-  };
-
-  Utils.StoreData = function (element, name, value) {
-    // Stores an item in the cache for a specified element.
-    // name is the cache key.    
-    var id = Utils.GetUniqueElementId(element);
-    if (!Utils.__cache[id]) {
-        Utils.__cache[id] = {};
-    }
-
-    Utils.__cache[id][name] = value;
-  };
-
-
-  Utils.GetData = function (element, name) {
-    // Retrieves a value from the cache by its key (name)
-    // name is optional. If no name specified, return 
-    // all cache items for the specified element.
-    // and for a specified element.
-    var id = Utils.GetUniqueElementId(element);
-    if (name) {
-        if (Utils.__cache[id]) {
-            return Utils.__cache[id][name] != null ? 
-			       Utils.__cache[id][name]:
-				   $(element).data(name); // Fallback to HTML5 data attribs.
-        }
-        return $(element).data(name); // Fallback to HTML5 data attribs.
-    } else {
-        return Utils.__cache[id];			   
-    }
-  };
-
-  Utils.RemoveData = function (element) {
-    // Removes all cached items for a specified element.
-    var id = Utils.GetUniqueElementId(element);
-    if (Utils.__cache[id] != null) {
-        delete Utils.__cache[id];
-    }
-  };
-
-  return Utils;
-});
+define([
+  'jquery'
+], function ($) {
+  var Utils = {};
+
+  Utils.Extend = function (ChildClass, SuperClass) {
+    var __hasProp = {}.hasOwnProperty;
+
+    function BaseConstructor () {
+      this.constructor = ChildClass;
+    }
+
+    for (var key in SuperClass) {
+      if (__hasProp.call(SuperClass, key)) {
+        ChildClass[key] = SuperClass[key];
+      }
+    }
+
+    BaseConstructor.prototype = SuperClass.prototype;
+    ChildClass.prototype = new BaseConstructor();
+    ChildClass.__super__ = SuperClass.prototype;
+
+    return ChildClass;
+  };
+
+  function getMethods (theClass) {
+    var proto = theClass.prototype;
+
+    var methods = [];
+
+    for (var methodName in proto) {
+      var m = proto[methodName];
+
+      if (typeof m !== 'function') {
+        continue;
+      }
+
+      if (methodName === 'constructor') {
+        continue;
+      }
+
+      methods.push(methodName);
+    }
+
+    return methods;
+  }
+
+  Utils.Decorate = function (SuperClass, DecoratorClass) {
+    var decoratedMethods = getMethods(DecoratorClass);
+    var superMethods = getMethods(SuperClass);
+
+    function DecoratedClass () {
+      var unshift = Array.prototype.unshift;
+
+      var argCount = DecoratorClass.prototype.constructor.length;
+
+      var calledConstructor = SuperClass.prototype.constructor;
+
+      if (argCount > 0) {
+        unshift.call(arguments, SuperClass.prototype.constructor);
+
+        calledConstructor = DecoratorClass.prototype.constructor;
+      }
+
+      calledConstructor.apply(this, arguments);
+    }
+
+    DecoratorClass.displayName = SuperClass.displayName;
+
+    function ctr () {
+      this.constructor = DecoratedClass;
+    }
+
+    DecoratedClass.prototype = new ctr();
+
+    for (var m = 0; m < superMethods.length; m++) {
+        var superMethod = superMethods[m];
+
+        DecoratedClass.prototype[superMethod] =
+          SuperClass.prototype[superMethod];
+    }
+
+    var calledMethod = function (methodName) {
+      // Stub out the original method if it's not decorating an actual method
+      var originalMethod = function () {};
+
+      if (methodName in DecoratedClass.prototype) {
+        originalMethod = DecoratedClass.prototype[methodName];
+      }
+
+      var decoratedMethod = DecoratorClass.prototype[methodName];
+
+      return function () {
+        var unshift = Array.prototype.unshift;
+
+        unshift.call(arguments, originalMethod);
+
+        return decoratedMethod.apply(this, arguments);
+      };
+    };
+
+    for (var d = 0; d < decoratedMethods.length; d++) {
+      var decoratedMethod = decoratedMethods[d];
+
+      DecoratedClass.prototype[decoratedMethod] = calledMethod(decoratedMethod);
+    }
+
+    return DecoratedClass;
+  };
+
+  var Observable = function () {
+    this.listeners = {};
+  };
+
+  Observable.prototype.on = function (event, callback) {
+    this.listeners = this.listeners || {};
+
+    if (event in this.listeners) {
+      this.listeners[event].push(callback);
+    } else {
+      this.listeners[event] = [callback];
+    }
+  };
+
+  Observable.prototype.trigger = function (event) {
+    var slice = Array.prototype.slice;
+
+    this.listeners = this.listeners || {};
+
+    if (event in this.listeners) {
+      this.invoke(this.listeners[event], slice.call(arguments, 1));
+    }
+
+    if ('*' in this.listeners) {
+      this.invoke(this.listeners['*'], arguments);
+    }
+  };
+
+  Observable.prototype.invoke = function (listeners, params) {
+    for (var i = 0, len = listeners.length; i < len; i++) {
+      listeners[i].apply(this, params);
+    }
+  };
+
+  Utils.Observable = Observable;
+
+  Utils.generateChars = function (length) {
+    var chars = '';
+
+    for (var i = 0; i < length; i++) {
+      var randomChar = Math.floor(Math.random() * 36);
+      chars += randomChar.toString(36);
+    }
+
+    return chars;
+  };
+
+  Utils.bind = function (func, context) {
+    return function () {
+      func.apply(context, arguments);
+    };
+  };
+
+  Utils._convertData = function (data) {
+    for (var originalKey in data) {
+      var keys = originalKey.split('-');
+
+      var dataLevel = data;
+
+      if (keys.length === 1) {
+        continue;
+      }
+
+      for (var k = 0; k < keys.length; k++) {
+        var key = keys[k];
+
+        // Lowercase the first letter
+        // By default, dash-separated becomes camelCase
+        key = key.substring(0, 1).toLowerCase() + key.substring(1);
+
+        if (!(key in dataLevel)) {
+          dataLevel[key] = {};
+        }
+
+        if (k == keys.length - 1) {
+          dataLevel[key] = data[originalKey];
+        }
+
+        dataLevel = dataLevel[key];
+      }
+
+      delete data[originalKey];
+    }
+
+    return data;
+  };
+
+  Utils.hasScroll = function (index, el) {
+    // Adapted from the function created by @ShadowScripter
+    // and adapted by @BillBarry on the Stack Exchange Code Review website.
+    // The original code can be found at
+    // http://codereview.stackexchange.com/q/13338
+    // and was designed to be used with the Sizzle selector engine.
+
+    var $el = $(el);
+    var overflowX = el.style.overflowX;
+    var overflowY = el.style.overflowY;
+
+    //Check both x and y declarations
+    if (overflowX === overflowY &&
+        (overflowY === 'hidden' || overflowY === 'visible')) {
+      return false;
+    }
+
+    if (overflowX === 'scroll' || overflowY === 'scroll') {
+      return true;
+    }
+
+    return ($el.innerHeight() < el.scrollHeight ||
+      $el.innerWidth() < el.scrollWidth);
+  };
+
+  Utils.escapeMarkup = function (markup) {
+    var replaceMap = {
+      '\\': '&#92;',
+      '&': '&amp;',
+      '<': '&lt;',
+      '>': '&gt;',
+      '"': '&quot;',
+      '\'': '&#39;',
+      '/': '&#47;'
+    };
+
+    // Do not try to escape the markup if it's not a string
+    if (typeof markup !== 'string') {
+      return markup;
+    }
+
+    return String(markup).replace(/[&<>"'\/\\]/g, function (match) {
+      return replaceMap[match];
+    });
+  };
+
+  // Append an array of jQuery nodes to a given element.
+  Utils.appendMany = function ($element, $nodes) {
+    // jQuery 1.7.x does not support $.fn.append() with an array
+    // Fall back to a jQuery object collection using $.fn.add()
+    if ($.fn.jquery.substr(0, 3) === '1.7') {
+      var $jqNodes = $();
+
+      $.map($nodes, function (node) {
+        $jqNodes = $jqNodes.add(node);
+      });
+
+      $nodes = $jqNodes;
+    }
+
+    $element.append($nodes);
+  };
+
+  // Cache objects in Utils.__cache instead of $.data
+  Utils.__cache = {};
+
+
+  var id = 0;
+  Utils.GetUniqueElementId = function (element) {
+    // Get a unique element Id. If element has no id, 
+    // creates a new unique number, stores it in the id 
+    // attribute and returns the new id. 
+    // If an id already exists, it simply returns it.
+
+    var select2Id = element.getAttribute('data-select2-id');
+    if (select2Id == null) {
+        // If element has id, use it.
+        if (element.id) {
+            select2Id = element.id;
+            element.setAttribute('data-select2-id', select2Id);
+        } else {
+            element.setAttribute('data-select2-id', ++id);
+            select2Id = id.toString();
+        }
+    }
+    return select2Id;
+  };
+
+  Utils.StoreData = function (element, name, value) {
+    // Stores an item in the cache for a specified element.
+    // name is the cache key.    
+    var id = Utils.GetUniqueElementId(element);
+    if (!Utils.__cache[id]) {
+        Utils.__cache[id] = {};
+    }
+
+    Utils.__cache[id][name] = value;
+  };
+
+
+  Utils.GetData = function (element, name) {
+    // Retrieves a value from the cache by its key (name)
+    // name is optional. If no name specified, return 
+    // all cache items for the specified element.
+    // and for a specified element.
+    var id = Utils.GetUniqueElementId(element);
+    if (name) {
+        if (Utils.__cache[id]) {
+            return Utils.__cache[id][name] != null ? 
+			       Utils.__cache[id][name]:
+				   $(element).data(name); // Fallback to HTML5 data attribs.
+        }
+        return $(element).data(name); // Fallback to HTML5 data attribs.
+    } else {
+        return Utils.__cache[id];			   
+    }
+  };
+
+  Utils.RemoveData = function (element) {
+    // Removes all cached items for a specified element.
+    var id = Utils.GetUniqueElementId(element);
+    if (Utils.__cache[id] != null) {
+        delete Utils.__cache[id];
+    }
+  };
+
+  return Utils;
+});