TRUNK-2218: remove direct method calls in CohortServiceImpl class
TRUNK-2218: remove direct method calls in ConceptServiceImpl class
TRUNK-2218: remove direct method calls in EncounterServiceImpl class
TRUNK-2218: remove direct method calls in FormServiceImpl class
TRUNK-2218: remove direct method calls in LocationServiceImpl class
TRUNK-2218: remove direct method calls in ObsServiceImpl class
TRUNK-2218: remove direct method calls in OrderServiceImpl
TRUNK-2218: remove direct method calls in PersonServiceImpl class
TRUNK-2218: remove direct method calls in ProgramWorkflowServiceImpl class
TRUNK-2218: remove direct method calls in ProviderServiceImpl class
TRUNK-2218: remove direct method calls in VisitServiceImpl class
TRUNK-2218: remove direct method calls in UserServiceImpl class
TRUNK-2218: remove direct method calls in AdministrationServiceImpl class