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/backends/tests.py

@@ -1,17 +1,20 @@
 # -*- coding: utf-8 -*-
 # Unit and doctests for specific database backends.
-from __future__ import with_statement
+from __future__ import with_statement, absolute_import
+
 import datetime
 
 from django.conf import settings
 from django.core.management.color import no_style
-from django.db import backend, connection, connections, DEFAULT_DB_ALIAS, IntegrityError, transaction
+from django.db import (backend, connection, connections, DEFAULT_DB_ALIAS,
+    IntegrityError, transaction)
 from django.db.backends.signals import connection_created
 from django.db.backends.postgresql_psycopg2 import version as pg_version
 from django.test import TestCase, skipUnlessDBFeature, TransactionTestCase
 from django.utils import unittest
 
-from regressiontests.backends import models
+from . import models
+
 
 class OracleChecks(unittest.TestCase):