modify the jsp
modify the default page
modify the compile error
modify the overload report default size
modify the jsp
modify the nav tree
modify the title
Merge pull request #549 from leonindy/master

fix HeartBeatAlert bug, amend rule configs check range
Merge branch 'master' of github.com:dianping/cat
modify the jsp
add activity page for app
modify the sort function
add title to app alert config page
refactor class name
Merge pull request #550 from leonindy/master

refactor heartbeat module
Merge branch 'master' of github.com:dianping/cat
modify the log name
refactor code
modify the log name
modify the login error