modify the cat
modify the log service
Merge pull request #575 from jialinsun/master

review & fix issue
Merge pull request #576 from youyong205/master

refactor
Merge pull request #577 from jialinsun/master

clean jsp and delete log
refactor
Merge pull request #578 from youyong205/master

refactor
refactor
Merge branch 'master' of https://github.com/dianping/cat
refactor code