Added created and last modified timestamps to the group_app model. Also edited the templates to show some extra information. The review template has the names for the new properties hard coded because the auto_add and auto_add_now datetimeproperties don't show up in the fields of the entity. Patch by: Lennard de Rijk

#!/usr/bin/env python
from django.core import management

if __name__ == "__main__":
    management.execute_from_command_line()