Convert the remainder of the relative imports in the tests to be absolute imports.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16981 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/templates/custom.py

@@ -1,6 +1,10 @@
+from __future__ import absolute_import
+
 from django import template
 from django.utils.unittest import TestCase
-from templatetags import custom
+
+from .templatetags import custom
+
 
 class CustomFilterTests(TestCase):
     def test_filter(self):