Move CKEditor asset precompile rules into initializer

app/models/ckeditor/asset.rb

@@ -1,9 +1,4 @@
 class Ckeditor::Asset < ActiveRecord::Base
   include Ckeditor::Orm::ActiveRecord::AssetBase
   include Ckeditor::Backend::Paperclip
-  Rails.application.config.assets.precompile += [
-    'ckeditor/filebrowser/images/gal_del.png',
-    /ckeditor\/lang\/.*\.js/,
-    /ckeditor\/plugins\/lineheight\/.*\.js/
-  ]
 end

config/initializers/assets.rb

@@ -0,0 +1,6 @@
+# Precompile CKEditor runtime assets that are fetched dynamically in production.
+Rails.application.config.assets.precompile += [
+  'ckeditor/filebrowser/images/gal_del.png',
+  /ckeditor\/lang\/.*\.js/,
+  /ckeditor\/plugins\/lineheight\/.*\.js/
+]