user dao try
Implement the UserDaoImpl.java
Update UserDaoImpl.java
Update UserDaoImpl.java
Update UserDaoImpl.java
Update the UserDaoImpl.java
Merge branch 'master' of https://github.com/huw30/BookMart

Conflicts:
	BookMart/src/java/edu/pitt/dao/ObjectDAO.java
	BookMart/src/java/edu/pitt/dao/impl/BookDaoImpl.java
	BookMart/src/java/edu/pitt/dao/impl/CategoryDaoImpl.java
	BookMart/src/java/edu/pitt/service/BusinessServiceImpl.java