Add backend function of personal statistics

Conflicts:
	src/com/hanyun/dao/ResourceDAOImpl.java
Add frontend function of personal statistics
Modify account.jsp to auto update the total res

Conflicts:
	WebRoot/user/account.jsp
Add backend function of all statistics
Add frontend function of all statistics
Update struts.xml to support resource tatistics

Conflicts:
	src/struts.xml
Update display of user/restatistics.jsp