OC-5903  Recording Study Event date created and date updated
date:time+timezone 

Fixed the timezone issue for study event entity
Merge pull request #42 from jkeremian/OC-5903

OC-5903  Recording Study Event date created and date updated
OC-5904 Subject (PersonID) Date Created date updated rendering
- I added timestamp w/time zone to both created and updated date fields.
- For updated_date field , I changed the call from Java new Date()function into database now() statement
Merge pull request #52 from kkrumlian/OC-5904

OC-5904 Subject (PersonID) Date Created date updated rendering
Merge pull request #43 from kkrumlian/OC-5913

OC-5913 Activate OC unit tests
OC-5913 Fixing path issues when loading dao xml files