Fixed #16210 -- Added some missing __future__ imports to support with statements on 2.5. Thanks to Julien Phalip for the report and patch

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16359 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/model_forms/tests.py

@@ -1,3 +1,5 @@
+from __future__ import with_statement
+
 import datetime
 import os
 from decimal import Decimal