Implemented Simple listing of users
Synchronized method getEntityManager() in DAO as different threads were closing other threads' EntityManagers
Added Thread test for entitymanager in DAO
Ensure EntityManager is closed after every transaction
Merge branch 'master' into Spring

Conflicts:
	src/main/java/org/amc/dao/MaterialDAO.java
	src/main/java/org/amc/dao/MouldingProcessDAO.java
	src/main/java/org/amc/dao/PartDAO.java
Added Atom feed from github to login page