Added SurveyRecordModel.
Lennard: On top of the orginial patch I've added several comments to the fields and two TODO's for further subclassing.
Patch by: James Levy, Daniel Diniz, Lennard de Rijk
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')