Fixed #2109 -- Convert old-style classes to new-style classes throughout Django. Thanks, Nicola Larosa

git-svn-id: http://code.djangoproject.com/svn/django/trunk@3113 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/db/models/query.py

@@ -546,7 +546,7 @@ class DateQuerySet(QuerySet):
         c._order = self._order
         return c
 
-class QOperator:
+class QOperator(object):
     "Base class for QAnd and QOr"
     def __init__(self, *args):
         self.args = args