Issue 4592 - Adapt messaging code for the new element hiding emulation filters

messageResponder.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 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 216 matching lines @@
 
           if (Prefs.enabled && !checkWhitelisted(sender.page, sender.frame,
                                 RegExpFilter.typeMap.DOCUMENT |
                                 RegExpFilter.typeMap.ELEMHIDE))
           {
             var hostname = sender.frame.url.hostname;
             filters = ElemHideEmulation.getRulesForDomain(hostname);
             filters = filters.map(function(filter)
             {
               return {
-                features: filter.features,
                 selector: filter.selector,
                 text: filter.text
               };
             });
           }
           callback(filters);
           break;
         }
 
         var subscription = Subscription.fromURL(message.subscriptionUrl);
@@ skipping 155 matching lines @@
         for (var i = 0; i < subscriptions.length; i++)
         {
           var subscription = subscriptions[i];
           if (subscription instanceof DownloadableSubscription)
             Synchronizer.execute(subscription, true);
         }
         break;
     }
   });
 })(this);