Define a default for rights['public'] in views/models/base.py. Alter rights
in views/models/site.py to allow anyone, even signed-out users, to view the
site home page.
Patch by: Todd Larsen
from query import *
from subqueries import *
from where import AND, OR
from datastructures import EmptyResultSet
__all__ = ['Query', 'AND', 'OR', 'EmptyResultSet']