Merge branch '2.1.2-wip' into box-sizing-exercise

Conflicts:
	docs/assets/css/bootstrap-responsive.css
	docs/assets/css/bootstrap.css
	docs/base-css.html
	docs/templates/pages/base-css.mustache
	less/forms.less
	less/mixins.less

1 files changed, 14 insertions, 5 deletions

diff --git a/docs/assets/js/bootstrap.js b/docs/assets/js/bootstrap.js
index 4baf3759c..5a5022be1 100644
--- a/docs/assets/js/bootstrap.js
+++ b/docs/assets/js/bootstrap.js
@@ -20,13 +20,13 @@
 
 !function ($) {
 
-  $(function () {
+  "use strict"; // jshint ;_;
 
-    "use strict"; // jshint ;_;
 
+  /* CSS TRANSITION SUPPORT (http://www.modernizr.com/)
+   * ======================================================= */
 
-    /* CSS TRANSITION SUPPORT (http://www.modernizr.com/)
-     * ======================================================= */
+  $(function () {
 
     $.support.transition = (function () {
 
@@ -1797,7 +1797,7 @@
         .on('keypress', $.proxy(this.keypress, this))
         .on('keyup',    $.proxy(this.keyup, this))
 
-      if ($.browser.chrome || $.browser.webkit || $.browser.msie) {
+      if (this.eventSupported('keydown')) {
         this.$element.on('keydown', $.proxy(this.keydown, this))
       }
 
@@ -1806,6 +1806,15 @@
         .on('mouseenter', 'li', $.proxy(this.mouseenter, this))
     }
 
+  , eventSupported: function(eventName) {
+      var isSupported = eventName in this.$element
+      if (!isSupported) {
+        this.$element.setAttribute(eventName, 'return;')
+        isSupported = typeof this.$element[eventName] === 'function'
+      }
+      return isSupported
+    }
+
   , move: function (e) {
       if (!this.shown) return