code style simplify
Issue #682: convert logs package to RFC5424 logging levels.
Merge pull request #691 from FGM/logger-rfc5424

Issue #682: convert logs package to RFC5424 logging levels.
code style simplify
merge update
Merge pull request #692 from fuxiaohei/develop

code style simplify
Merge remote-tracking branch 'remotes/astaxie/develop' into develop
code style simplify
code style simplify
Merge pull request #693 from fuxiaohei/develop

code style simplify
code style simplify
Merge pull request #694 from fuxiaohei/develop

code style simplify
code style simplify
Merge branch 'develop' of https://github.com/astaxie/beego into develop
code style simplify
beego: static file support robots.txt
session: fix #688
Merge branch 'develop' of https://github.com/astaxie/beego into develop
code style simplify
code style simplify