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

lib/objectTabs.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 285 matching lines @@
         this.positionTimer = null;
       }
 
       try {
         objtab.parentNode.removeChild(objtab);
       } catch (e) {}
       objtab.removeEventListener("mouseover", objectTabEventHander, false);
       objtab.removeEventListener("mouseout", objectTabEventHander, false);
       objtab.nodeData = null;
 
-      for each (let wnd in this.windowListeners)
+      for (let wnd of this.windowListeners)
         wnd.removeEventListener("MozAfterPaint", objectWindowEventHandler, false);
       this.windowListeners = null;
     }
   },
 
   /**
    * Updates position of the tab element.
    */
   _positionTab: function()
   {
@@ skipping 166 matching lines @@
     event.stopPropagation();
 
     objTabs.doBlock();
   }
   else if (event.type == "mouseover")
     objTabs.showTabFor(objTabs.currentElement);
   else if (event.type == "mouseout")
     objTabs.hideTabFor(objTabs.currentElement);
 }
 exports.objectMouseEventHander = objectMouseEventHander;