TRUNK-3967
TRUNK-4378 Modules using conditional loading should not fail on older versions
TRUNK-4212: SchedulerServiceTest.shouldSaveLastExecutionTime failing occasionally
Merge pull request #929 from anotherdave/TRUNK-4212-2

TRUNK-4212: SchedulerServiceTest.shouldSaveLastExecutionTime failing
Merge pull request #927 from felipeq/TRUNK-3967

TRUNK-3967: Added option to unvoid Person on UI
TRUNK-4116: Concept Service getDrugs(String phrase) should not return retired drugs