front-end refer to f2e.im
to-do
1.edit topic/reply
2.show hotest nodes
3.display /u/username page
4.display /u/username/topics /u/username/replies /u/username/favorites page
5.topic/node/reply next page
6.reset/change password
7.change avator
8.模板macros化
9.读取数据规范化
10.回复/@ 某人