Merge pull request #43 from hlee/master

subtle change
Merge pull request #44 from hlee/master

only allowed to edit and destroy self user
完成论坛功能
Merge remote-tracking branch 'cms_6bey/master'
修改了评论时用户未登录的bug
Merge pull request #45 from songjiayang/master

完成回复功能，添加了icon，修改部分样式