modify account Service
注册用户
注册用户，能够正常注册，且分配为普通用户权限
index jsp
初始化普通用户权限
Merge branch 'master' of https://github.com/linking12/WeiChat.git

Conflicts:
	src/main/java/net/chat/controllers/RegisterController.java
	src/main/java/net/chat/formbean/RegisterForm.java
	src/main/java/net/chat/service/AccountService.java
	src/main/java/net/chat/service/impl/AccountServiceImpl.java
	src/main/webapp/WEB-INF/views/register.jsp