Convert much of the regression tests to use absolute imports. There's still work to be done though.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16976 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/admin_custom_urls/tests.py

@@ -1,8 +1,10 @@
+from __future__ import absolute_import
+
 from django.core.urlresolvers import reverse
 from django.template.response import TemplateResponse
 from django.test import TestCase
 
-from models import Action
+from .models import Action
 
 
 class AdminCustomUrlsTest(TestCase):