js/bootstrap-button.js in twitter-bootstrap-ruby-2.1.1.0 vs js/bootstrap-button.js in twitter-bootstrap-ruby-2.3.1.0

@@ -1,7 +1,7 @@
 /* ============================================================
- * bootstrap-button.js v2.1.1
+ * bootstrap-button.js v2.3.1
  * http://twitter.github.com/bootstrap/javascript.html#buttons
  * ============================================================
  * Copyright 2012 Twitter, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
@@ -62,10 +62,12 @@
 
 
  /* BUTTON PLUGIN DEFINITION
   * ======================== */
 
+  var old = $.fn.button
+
   $.fn.button = function (option) {
     return this.each(function () {
       var $this = $(this)
         , data = $this.data('button')
         , options = typeof option == 'object' && option
@@ -80,17 +82,24 @@
   }
 
   $.fn.button.Constructor = Button
 
 
+ /* BUTTON NO CONFLICT
+  * ================== */
+
+  $.fn.button.noConflict = function () {
+    $.fn.button = old
+    return this
+  }
+
+
  /* BUTTON DATA-API
   * =============== */
 
-  $(function () {
-    $('body').on('click.button.data-api', '[data-toggle^=button]', function ( e ) {
-      var $btn = $(e.target)
-      if (!$btn.hasClass('btn')) $btn = $btn.closest('.btn')
-      $btn.button('toggle')
-    })
+  $(document).on('click.button.data-api', '[data-toggle^=button]', function (e) {
+    var $btn = $(e.target)
+    if (!$btn.hasClass('btn')) $btn = $btn.closest('.btn')
+    $btn.button('toggle')
   })
 
 }(window.jQuery);
\ No newline at end of file