Classes

Create User and UserManager
set up the database file

- database.sql
Create Usermanager.php
哈哈

呵呵
哈哈

呵呵
Merge branch 'master' into JBLong

Conflicts:
	WishWall/application/classes/Wish.php
	WishWall/application/controllers/welcome.php
	WishWall/application/models/WishManager.php