Clean document references
This has the advantage that we can inform the user if a document
could not be found.
Patch by: Sverre Rabbelier
#!/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')