Issue 301 - Change for each to for .. of .. in lib/

lib/utils.js

 /*
  * This file is part of Adblock Plus <http://adblockplus.org/>,
  * Copyright (C) 2006-2014 Eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 297 matching lines @@
   /**
    * Checks whether any of the prefixes listed match the application locale,
    * returns matching prefix if any.
    */
   checkLocalePrefixMatch: function(/**String*/ prefixes) /**String*/
   {
     if (!prefixes)
       return null;
 
     let appLocale = Utils.appLocale;
-    for each (let prefix in prefixes.split(/,/))
+    for (let prefix of prefixes.split(/,/))
       if (new RegExp("^" + prefix + "\\b").test(appLocale))
         return prefix;
 
     return null;
   },
 
   /**
    * Chooses the best filter subscription for user's language.
    */
   chooseFilterSubscription: function(/**NodeList*/ subscriptions) /**Node*/
@@ skipping 443 matching lines @@
     Cu.reportError(e);
     // Expected, ctypes isn't supported in Gecko 1.9.2
     return null;
   }
 });
 
 if ("@mozilla.org/messenger/headerparser;1" in Cc)
   XPCOMUtils.defineLazyServiceGetter(Utils, "headerParser", "@mozilla.org/messenger/headerparser;1", "nsIMsgHeaderParser");
 else
   Utils.headerParser = null;