UC64 - Implemented DocumentObstetricsVisit with validation, OVDAOTest
UC64: Added View ObstetricsVisit History, fixed CalculateEDD error handling. S4 and the tests should be all thats left
General: (KN) Fixed code breaking unit tests and removed unnecessary debugging messages.
Merge branch 'UC64'

Conflicts:
	src/edu/ncsu/csc/itrust/dao/mysql/PatientDAO.java
	src/edu/ncsu/csc/itrust/enums/TransactionType.java