refator analyzer
fix heartbeat task create bug
fix metric problem
fix the problem query
Merge pull request #109 from sunryuan/biz

baseline refactor
Merge branch 'biz' of github.com:dianping/cat into biz
code format
fix cat log error api and add the dependendy graph
remove log'
Merge pull request #110 from youyong205/biz

Done
merge