add openid
clean unused code
少个空格好难受
Merge branch 'openid' into 'master'

Openid2

增加openid2支持
顺便写了个flask的插件, 可以抽出来搞个库
就看你们多少人需要用flask接openid2了

@linzhe @cmgs
增加登录过滤
fix dependency
Merge branch 'openid' into 'master'

Openid