Fix for Rails 3.1
Fix for Rails 3.1

yui-knk/jpmobile,asonas/jpmobile,xibbar/jpmobile,jpmobile/jpmobile,matsu911/jpmobile,jpmobile/jpmobile,asonas/jpmobile,sunny4381/jpmobile,sunny4381/jpmobile,matsu911/jpmobile,mataki/jpmobile,xibbar/jpmobile,yui-knk/jpmobile,komagata/jpmobile