Modify Site wide user roles to pull role definitions from properties files.
XNAT-3297: Added extra functionality to the delete() method to handle the disabled timestamp update.
The disabled timestamp is now set to new Date(0L) by default. All unit tests pass properly up through
XDAT.

nrg_framework changes map to commit https://bitbucket.org/nrg/nrg_framework/commits/2daec9a35144a671ca010ed30ad11c39dca4eb5d