modify the cdn ip
Merge branch 'master' of github.com:dianping/cat
net topo color change; cdn class bug fix
Merge pull request #369 from zengwei0771/master

net topo color change; cdn class bug fix
Merge branch 'master' of github.com:dianping/cat
refactor code
Merge pull request #370 from youyong205/master

refactor
cdn code refactor
modify the test
Merge pull request #371 from zengwei0771/master

cdn code refactor
Merge branch 'master' of github.com:dianping/cat
modify the test
Merge pull request #372 from youyong205/master

refactor
Merge branch 'master' of https://github.com/dianping/cat
cat-agent代码完善，exceptionalert重构