fix ad_image size hints. fix orbit backend controller error when changing language.

app/controllers/orbit_backend_controller.rb

@@ -13,6 +13,7 @@ class OrbitBackendController< ApplicationController
   def setup_vars
     @app_title = request.fullpath.split('/')[2]
     @app_title = request.fullpath.split('/')[1] if(@app_title == "back_end") 
+    @app_title.gsub!(/[?].*/,'')
     @module_app = ModuleApp.first(conditions: {:key => @app_title} )
   end