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_views/urls.py

@@ -1,7 +1,9 @@
+from __future__ import absolute_import
+
 from django.conf.urls import patterns, include
-import views
-import customadmin
-import admin
+
+from . import views, customadmin, admin
+
 
 urlpatterns = patterns('',
     (r'^test_admin/admin/doc/', include('django.contrib.admindocs.urls')),