scheduled report modify
Merge branch 'master' of https://github.com/dianping/cat
Merge pull request #526 from jialinsun/master

scheduled report modify
Merge pull request #527 from leonindy/master

refactor tag module and metric module, amend rule ftl
add the router page
Merge pull request #528 from youyong205/master

add the router page
fix alert bug
Merge branch 'master' of https://github.com/dianping/cat
clean code
Merge pull request #530 from leonindy/master

refactor heartbeat alert module
Merge pull request #529 from jialinsun/master

fix alert bug
add the event name max size
Merge pull request #531 from youyong205/master

add the event name max size
modify the overload type
Merge pull request #532 from youyong205/master

modify the overload type