Resolve "Review permissions"

Closes #83 (closed)

aleksis/apps/chronos/util/predicates.py

@@ -3,10 +3,10 @@ from django.db.models import Model
 
 from rules import predicate
 
-from aleksis.apps.chronos.models import Room
 from aleksis.core.models import Group, Person
 from aleksis.core.util.predicates import has_global_perm, has_object_perm
 
+from ..models import Room
 from .chronos_helpers import get_classes, get_rooms, get_teachers