Merge pull request #420 from youyong205/master

refactor the code
app data collect time handle bug fix
refactor receiver, decorator module
Merge pull request #421 from zengwei0771/master

app data collect time handle bug fix
Merge pull request #422 from leonindy/master

refactor receiver, decorator module
Merge branch 'master' of github.com:dianping/cat
modify the sql length