add i18n for layout and snippet

app/controllers/admin/snippets_controller.rb

@@ -36,7 +36,10 @@ class Admin::SnippetsController < ApplicationController
         end
       end
       
-      @snippet.content = "<ul>\n#{lis}</ul>"
+      VALID_LOCALES.each do |locale|
+        @snippet.write_attribute( "content_#{locale}", "<ul>\n#{lis}</ul>" )
+      end
+      
     end
     
     respond_to do |format|