adblockplusopera: Port UI code from Chrome

background.js

 var DownloadableSubscription = require("subscriptionClasses").DownloadableSubscription;
 var WhitelistFilter = require("filterClasses").WhitelistFilter;
 var FilterNotifier = require("filterNotifier").FilterNotifier;
 var FilterStorage = require("filterStorage").FilterStorage;
 var Prefs = require("prefs").Prefs;
 var Synchronizer = require("synchronizer").Synchronizer;
 var Subscription = require("subscriptionClasses").Subscription;
 var SpecialSubscription = require("subscriptionClasses").SpecialSubscription;
 var Utils = require("utils").Utils;
 
@@ skipping 197 matching lines @@
                   + (locale ? locale : "default"));
     return;
   }
 
   for (var i in messages)
     i18nMessages[i] = messages[i];
 }
 
 function loadI18nMessages()
 {
-  i18nMessages = {};
-
   // Could be parsed from config.xml
   var defaultLocale = "en";
 
-  if (locale !== defaultLocale)
-    loadMessagesForLocale(defaultLocale);
-
+  i18nMessages = {};
+  loadMessagesForLocale(defaultLocale);
   loadMessagesForLocale();
 }
 
 setDefaultOptions();
 createToolbarButton();
 refreshToolbarButton();
 loadI18nMessages();