Set bean scope of AuditingEntityListener to prototype to ensure DI for each instance. Before that AuditorAware implementations referencing a Repository would cause premature initialization of those as the AuditingEntityListener gets created and thus wired when the EntityManagerFactory gets created. At that point in time we unfortunately don't have no DAOs yet.
Added @DirtiesContext to AuditingEntitListenerIntegrationTest because otherwise the @Configurable backing prototype bean definition leaks into other test cases.
Altered JpaQueryCreator to correctly add property traversals and joins based on Property. Added integration tests to verify property traversal on collections and simple properties.
Query creation is not String based anymore but rather leverages the PartTree infrastructure and builds a JPA criteria API query instead. Changed query lookup and execution accordingly.
Port of the Hades project whereas the JPA independent part resides in Spring Data Commons Core. Reflect changes refactorings for DATACMNS-2, DATACMNS-3, DATACMNS-4, DATACMNS-5, DATACMNS-6, DATACMNS-8, DATACMNS-9, DATAJPA-2.
