Week3 （July 15-July 21）

Last week：

1. Enable custom node style.
2. Improve rightbar, including parent nodes.
3. Fix post box bug.
4. Update settings page style.
5. Improve member box.
6. Improve footer.
7. Add upload avatar.
8. Improve tab selection function.
9. Improve some backstage api.
10. Most of reminder function, I will finish it today.

Fix many bugs.

Next week：

1. Finish reminder function.
2. Improve @ function.
3. Start writing backstage system.
4. Enable more functions, depends on demands.

Find and Fix more bugs.