Removed try/catch block allow RollBackException to bubble up
Added JavaBean validation to User entity
Added Spring Validation for UserAddOrDelete JSP. messages.properties not being found by the Spring container.
Added JS which stops form submission if no item in the table is selected
UserAddOrEdit.jsp:Added emailAddress html pattern check, needs to be altered to allow empty emailAddress values
UserAddOrEdit.jsp:Correctly display validation errors
TestUser.java:Added test case for UserDAO.delete(User u)