Merge pull request #281 from atellwu/softbalance

Softbalance 界面部分的代码push
vs validate
Merge pull request #282 from leoliang/master

vs validate
Merge branch 'slb' of https://github.com/dianping/phoenix into softbalance
accesslog to access_log
validate bugfix
Merge pull request #283 from leoliang/master

validate buffix
Merge branch 'slb' of https://github.com/dianping/phoenix into softbalance