diff --git a/lib/ace/keyboard/emacs.js b/lib/ace/keyboard/emacs.js
index d6c54b72..4a4a6b8c 100644
--- a/lib/ace/keyboard/emacs.js
+++ b/lib/ace/keyboard/emacs.js
@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2010, Ajax.org B.V.
  * All rights reserved.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *     * Redistributions of source code must retain the above copyright
@@ -14,7 +14,7 @@
  *     * Neither the name of Ajax.org B.V. nor the
  *       names of its contributors may be used to endorse or promote products
  *       derived from this software without specific prior written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
@@ -89,9 +89,9 @@ exports.handler.attach = function(editor) {
     // CTRL-A should go to actual beginning of line
     $formerLineStart = editor.session.$useEmacsStyleLineStart;
     editor.session.$useEmacsStyleLineStart = true;
-    
+
     editor.session.$emacsMark = null;
-    
+
     exports.markMode = function() {
         return editor.session.$emacsMark;
     }
@@ -129,7 +129,7 @@ var $kbSessionChange = function(e) {
         e.oldSession.$selectLongWords = $formerLongWords;
         e.oldSession.$useEmacsStyleLineStart = $formerLineStart;
     }
-    
+
     $formerLongWords = e.session.$selectLongWords;
     e.session.$selectLongWords = true;
     $formerLineStart = e.session.$useEmacsStyleLineStart;
@@ -137,7 +137,7 @@ var $kbSessionChange = function(e) {
 
     if (!e.session.hasOwnProperty('$emacsMark'))
         e.session.$emacsMark = null;
-}    
+}
 
 var $resetMarkMode = function(e) {
     e.editor.session.$emacsMark = null;
@@ -256,11 +256,11 @@ exports.handler.handleKeyboard = function(data, hashId, key, keyCode) {
 
 exports.emacsKeys = {
     // movement
-    "Up|C-p"      : {command: "goorselect", args: ["golineup","selectup"]},         
-    "Down|C-n"    : {command: "goorselect", args: ["golinedown","selectdown"]},       
+    "Up|C-p"      : {command: "goorselect", args: ["golineup","selectup"]},
+    "Down|C-n"    : {command: "goorselect", args: ["golinedown","selectdown"]},
     "Left|C-b"    : {command: "goorselect", args: ["gotoleft","selectleft"]},
     "Right|C-f"   : {command: "goorselect", args: ["gotoright","selectright"]},
-    "C-Left|M-b"  : {command: "goorselect", args: ["gotowordleft","selectwordleft"]}, 
+    "C-Left|M-b"  : {command: "goorselect", args: ["gotowordleft","selectwordleft"]},
     "C-Right|M-f" : {command: "goorselect", args: ["gotowordright","selectwordright"]},
     "Home|C-a"    : {command: "goorselect", args: ["gotolinestart","selecttolinestart"]},
     "End|C-e"     : {command: "goorselect", args: ["gotolineend","selecttolineend"]},
@@ -320,7 +320,7 @@ exports.emacsKeys = {
     "M-u": "touppercase",    // Doesn't work
     "M-l": "tolowercase",
     "M-/": "autocomplete",   // Doesn't work
-    "C-u": "universalArgument",  
+    "C-u": "universalArgument",
 
     "M-;": "togglecomment",
 
@@ -340,7 +340,7 @@ exports.handler.addCommands({
     recenterTopBottom: function(editor) {
         var renderer = editor.renderer;
         var pos = renderer.$cursorLayer.getPixelPosition();
-        var h = renderer.$size.scrollerHeight - renderer.lineHeight;       
+        var h = renderer.$size.scrollerHeight - renderer.lineHeight;
         var scrollTop = renderer.scrollTop;
         if (Math.abs(pos.top - scrollTop) < 2) {
             scrollTop = pos.top - h;
@@ -357,7 +357,7 @@ exports.handler.addCommands({
     setMark:  function(editor) {
         // Emulate emacs highlighting behaviour in transient-mark-mode.
         // Sets mark-mode and clears current selection.
-        // When mark is set, keyboard cursor movement commands become 
+        // When mark is set, keyboard cursor movement commands become
         // selection modification commands. That is,
         // "goto" commands become "select" commands.
         // Any insertion or mouse click resets mark-mode.
@@ -379,7 +379,7 @@ exports.handler.addCommands({
         markMode = editor.getCursorPosition();
         exports.setMarkMode(markMode);
         editor.selection.setSelectionAnchor(markMode.row, markMode.column);
-        
+
     },
     exchangePointAndMark: {
         exec: function(editor) {