Added logic for every GHOP specific model. Defined logic for every model defined for GHOP. These logics do nothing special now. They are just inherited from their parent classes. Necessary GHOP specific logic will be added later as necessary. Reviewed by: Lennard de Rijk

#!/usr/bin/env python

"""
Daily cleanup job.

Can be run as a cronjob to clean out old data from the database (only expired
sessions at the moment).
"""

from django.core import management

if __name__ == "__main__":
    management.call_command('cleanup')