New UI changes(tags, categories, authorisations, module index…)

To run:
  - ruby lib/remove_old_tags.rb DB_NAME
  - rake new_ui:migrate_tags
  - rake new_ui:migrate_categories['APP_KEY,''MODEL_NAME'] (check new_ui.rake for more details)

app/controllers/admin/assets_controller.rb

@@ -1,4 +1,6 @@
 class Admin::AssetsController < OrbitBackendController
+
+  before_filter :setup_vars
   
   def index
     @assets = (params[:sort] || @filter) ? get_sorted_and_filtered("asset") : Asset.all.page(params[:page]).per(10)