fixed gallery theater for frontend without login

app/controllers/admin/galleries_controller.rb

@@ -1,5 +1,7 @@
-class Admin::GalleriesController < OrbitAdminController
+class Admin::GalleriesController < ApplicationController
 	before_filter :setup_vars
+  before_action :authenticate_user, :log_user_action, :except => "imgs"
+  layout "back_end"
   def index
     @albums = Album.all
      @tags = @module_app.tags