TRUNK-4280 Changed the date format in getValueAsString() method of Obs class to get date in yyyy-MM-dd format

TRUNK-4280 | Fixed the @Should in the test
Merge pull request #1009 from Bhamni/TRUNK-4280

TRUNK-4280 Changed the date format in getValueAsString() method of Obs c...
TRUNK-3586 Update unit testing environment to use mocks
OrderService getActiveOrders as of date does not consider start date TRUNK-4442

Cleaned up code in HibernateOrderDAO.getActiveOrders - TRUNK-4436
removed stray drug order row in test data set - TRUNK-4442