Add some additional functions for stats to stats.py script. This included getStudents, getUsers, getMentors, getOrgAdmins, countStudentsWithProposals and some style fixes. Patch by: Pawel Solyga Reviewed by: to-be-reviewed

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

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