fix broken ad_banner

config/routes.rb

@@ -25,7 +25,7 @@ Orbit::Application.routes.draw do
     end
 
 
-    match 'ad_banner/:id/preview' => 'ad_banners#realtime_preview',:as => :realtime_preview_ad_banner,:via => :put
+    match 'ad_banners/:id/preview' => 'ad_banners#realtime_preview',:as => :realtime_preview_ad_banner,:via => :put
     resources :ad_banners do 
         collection do
           match 'new_ad_image' => 'ad_images#new',:as => :new_ad_image,:via => :get