Add group templates that can be used by Sponsor, Organization, School, Club views. Right now only upcoming commit of Sponsor views is using it. Patch by: Pawel Solyga Review by: to-be-reviewed

from query import *
from subqueries import *
from where import AND, OR
from datastructures import EmptyResultSet

__all__ = ['Query', 'AND', 'OR', 'EmptyResultSet']