Mihir | Fixing the getter, it should not return stuff which is not there in object
Mihir | Removing the obs default dateTime to encounterDateTime if the obsDateTime is null, and setting the obsDateTime to current Date time
Mihir | removing the java.util.* and adding java.util.Date
Merge branch 'master' of https://github.com/openmrs/openmrs-module-emrapi
D3, Mihir | EncounterTransaction, setting observationDateTime whenever its null