Renamed the method findByName to findBySubject. Implemented findBySubject DAO method.
Removed the createFixtures method in BaseIT. Implemented the userDAO.create method. Removed the isCreator method.
Renamed method findByReal. Renamed method findBySubject. Return -1 instead of throwing DataAccessException in findIdBySubject.
Added isCreator method. Added a verification in voteService layer.
Added isCreator method. Added a verification in voteService layer.
Added a verification for the user's nick name.