cui:update class-new页面代码 and add teacher-info.jade&teacher-info.js
cui:update class-new.jade and teacher-new.jade
cui: Update teacher-new and class-new
将cui的class-new和teacher-new变更回原有的jade template样式
shuo: class-new更新邀请码的部分
更改命名，以models复数形式命名页面
Merge branch 'master' of https://github.com/sunjiajun/tgj into construction-site
Revert "Merge branch 'master' of https://github.com/sunjiajun/tgj into construction-site"

This reverts commit 60c533fb0bd7bbdfcccf4d4ba94fff5e074a7cd6, reversing
changes made to 2e6da4f6b667924f4ea84bff4e2ef1ca1d372b1c.
将sjj的class.jade合并如classes，同时修改几个命名为复数
Merge pull request #2 from happiefire/master

7月29日：已与v合并，处于最新。class更名为classes，其他model页面也均以复数形式命名。