Add arab locale

tarteaucitron.js

@@ -1794,7 +1794,7 @@ var tarteaucitron = {
     "getLanguage": function () {
         "use strict";
 
-        var availableLanguages = 'bg,ca,cn,cs,da,de,et,el,en,es,fi,fr,hu,it,ja,lt,lv,nl,no,oc,pl,pt,ro,ru,se,sk,sv,tr,uk,vi,zh',
+        var availableLanguages = 'ar,bg,ca,cn,cs,da,de,et,el,en,es,fi,fr,hu,it,ja,lt,lv,nl,no,oc,pl,pt,ro,ru,se,sk,sv,tr,uk,vi,zh',
             defaultLanguage = 'en';
 
         if (tarteaucitronForceLanguage !== '') {