created version diff

web/config/initializers/assets.rb

@@ -10,4 +10,4 @@ Rails.application.config.assets.version = '1.0'
 # application.js, application.css, and all non-JS/CSS in app/assets folder are already added.
 # Rails.application.config.assets.precompile += %w( search.js )
 Rails.application.config.assets.precompile += %w( active_scaffold/indicator.gif )
-Rails.application.config.assets.precompile += %w( template_select_form.js edit_configuration_file_form.js )
+Rails.application.config.assets.precompile += %w( template_select_form.js edit_configuration_file_form.js jsdifflib.js show_file_version.js )

web/config/routes.rb

@@ -4,7 +4,12 @@ Rails.application.routes.draw do
   post '/file/:id', to: 'configuration_files#update_by_api', as: 'push_file'
 
   resources :configuration_templates do as_routes end
-  resources :file_versions do as_routes end
+  resources :file_versions do
+    as_routes
+    member do
+      post 'restore'
+    end
+  end
   resources :file_types do as_routes end
   resources :configuration_files do
     as_routes