Update Twitter Bootstrap upto v3.1.1.

_assets/vendor/bootstrap/js/dropdown.js

@@ -1,24 +1,14 @@
 /* ========================================================================
- * Bootstrap: dropdown.js v3.0.3
+ * Bootstrap: dropdown.js v3.1.1
  * http://getbootstrap.com/javascript/#dropdowns
  * ========================================================================
- * Copyright 2013 Twitter, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * Copyright 2011-2014 Twitter, Inc.
+ * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  * ======================================================================== */
 
 
-+function ($) { "use strict";
++function ($) {
+  'use strict';
 
   // DROPDOWN CLASS DEFINITION
   // =========================
@@ -45,13 +35,14 @@
         $('<div class="dropdown-backdrop"/>').insertAfter($(this)).on('click', clearMenus)
       }
 
-      $parent.trigger(e = $.Event('show.bs.dropdown'))
+      var relatedTarget = { relatedTarget: this }
+      $parent.trigger(e = $.Event('show.bs.dropdown', relatedTarget))
 
       if (e.isDefaultPrevented()) return
 
       $parent
         .toggleClass('open')
-        .trigger('shown.bs.dropdown')
+        .trigger('shown.bs.dropdown', relatedTarget)
 
       $this.focus()
     }
@@ -77,7 +68,8 @@
       return $this.click()
     }
 
-    var $items = $('[role=menu] li:not(.divider):visible a', $parent)
+    var desc = ' li:not(.divider):visible a'
+    var $items = $parent.find('[role=menu]' + desc + ', [role=listbox]' + desc)
 
     if (!$items.length) return
 
@@ -85,19 +77,20 @@
 
     if (e.keyCode == 38 && index > 0)                 index--                        // up
     if (e.keyCode == 40 && index < $items.length - 1) index++                        // down
-    if (!~index)                                      index=0
+    if (!~index)                                      index = 0
 
     $items.eq(index).focus()
   }
 
-  function clearMenus() {
+  function clearMenus(e) {
     $(backdrop).remove()
-    $(toggle).each(function (e) {
+    $(toggle).each(function () {
       var $parent = getParent($(this))
+      var relatedTarget = { relatedTarget: this }
       if (!$parent.hasClass('open')) return
-      $parent.trigger(e = $.Event('hide.bs.dropdown'))
+      $parent.trigger(e = $.Event('hide.bs.dropdown', relatedTarget))
       if (e.isDefaultPrevented()) return
-      $parent.removeClass('open').trigger('hidden.bs.dropdown')
+      $parent.removeClass('open').trigger('hidden.bs.dropdown', relatedTarget)
     })
   }
 
@@ -106,7 +99,7 @@
 
     if (!selector) {
       selector = $this.attr('href')
-      selector = selector && /#/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7
+      selector = selector && /#[A-Za-z]/.test(selector) && selector.replace(/.*(?=#[^\s]*$)/, '') //strip for ie7
     }
 
     var $parent = selector && $(selector)
@@ -148,7 +141,7 @@
   $(document)
     .on('click.bs.dropdown.data-api', clearMenus)
     .on('click.bs.dropdown.data-api', '.dropdown form', function (e) { e.stopPropagation() })
-    .on('click.bs.dropdown.data-api'  , toggle, Dropdown.prototype.toggle)
-    .on('keydown.bs.dropdown.data-api', toggle + ', [role=menu]' , Dropdown.prototype.keydown)
+    .on('click.bs.dropdown.data-api', toggle, Dropdown.prototype.toggle)
+    .on('keydown.bs.dropdown.data-api', toggle + ', [role=menu], [role=listbox]', Dropdown.prototype.keydown)
 
 }(jQuery);