coding alert summary module, finish generator class
add table alert_summary
add send weixins for ExceptionAlert
change WeixinSend events arguments
transfer weixin parameters to utf8
remove a href from exception content when sending weixin
add AlertSummaryManager
Merge branch 'master' of https://github.com/dianping/cat
change report-codegen.xml back
Merge pull request #388 from leonindy/master

add send weixin feature for ExceptionALert