补充导师制的bug问题
给logo 加超链接
Merge pull request #12 from chewou/master

给logo加超连接测试
Update common.css
Update skeleton.html
Merge pull request #13 from chewou/master

给logo加超连接测试
Update skeleton.html
添加 2014 迎新 banner 设计
Merge branch 'master' of https://github.com/team-xue/xue
Merge branch 'master' into production