Adds turkish language.

lang/languages.json

 {
     "en": "English",
     "bg": "Bulgarian",
-    "de": "German"
+    "de": "German",
+    "tr": "Turkish"
 }

libs/app.bundle.js

     },
     EN: "en",
     BG: "bg",
-    DE: "de"
+    DE: "de",
+    TR: "tr"
 }
 },{}],96:[function(require,module,exports){
 var XMPPEvents = {

service/translation/languages.js

     },
     EN: "en",
     BG: "bg",
-    DE: "de"
+    DE: "de",
+    TR: "tr"
 }