add UserDefined RuleType
Merge branch 'master' of https://github.com/dianping/cat
react HeartBeat module
add try catch to exceptions which machine can not be found
fix HeartBeatAlert bug
change minute bug
add new table UserDefineRule
amend UserDefine rule part
add code to deal with quotes for son
Merge branch 'master' of https://github.com/dianping/cat
Merge pull request #568 from leonindy/master

refactor heartbeat module, add user defined rule type