Interface RepositoryFactory Created
PersistenceFactory Created to Replace InMemoryRepositoryFactory
Class DBRepositoryFactory Created and InMemoryRepositoryFactory Rewritten
Bootstrap and Controller Classes updated to conform to PersistenceFactory

Marcel Schmitz,1110998 

Luís Ferreira, 1111224
Merge branch 'master' of https://github.com/PauloGandraSousa/EAPLI_2013_PL_2DI.git