Update responder.rb
Update responder.rb

修复菜单的点击事件，with可直接使用，event_key 值

caiqinghua/wechat,bastengao/wechat-rails,TangMonk/wechat,EndingChaung/wechat,JeeLiu/wechat,caiqinghua/wechat,Dearest/wechat-1,zyxstar/wechat-rails,samchen2009/wechat-rails,Eric-Guo/wechat,Dearest/wechat-1,bastengao/wechat-rails,Eric-Guo/wechat,skinnyworm/wechat-rails,samchen2009/wechat-rails,caiqinghua/wechat,wolflee/wechat-rails,yxf/wechat,cmingxu/wechat-rails,cmingxu/wechat-rails,zyxstar/wechat-rails,zfben/wechat,cmingxu/wechat-rails,zyxstar/wechat-rails,wolflee/wechat-rails,Dearest/wechat-1,samchen2009/wechat-rails