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_scripts/complex_app/admin/foo.py

@@ -1,3 +1,8 @@
+from __future__ import absolute_import
+
 from django.contrib import admin
-from admin_scripts.complex_app.models.foo import Foo
+
+from ..models.foo import Foo
+
+
 admin.site.register(Foo)