Django 1.8 alpha 1 support

* Test on Python 2.7, 3.4, pypy.
* Call super.setUpClass in DjrillAdminTests.
  https://docs.djangoproject.com/en/dev/releases/1.8/#overriding-setupclass-teardownclass-in-test-cases

Also clear up some new PendingDeprecationWarnings, where
the changes can easily remain compatible back to Django 1.3:

* Remove deprecated django.conf.urls.patterns.
  (And match Django recommendations in our docs.)
  https://docs.djangoproject.com/en/dev/releases/1.8/#django-conf-urls-patterns
* Remove deprecated SimpleTestCase.urls.
  (We've already back-ported @override_settings
  for testing older Django versions.)
  https://docs.djangoproject.com/en/dev/releases/1.8/#django-test-simpletestcase-urls

djrill/__init__.py

@@ -39,19 +39,19 @@ class DjrillAdminSite(AdminSite):
         """Add our custom views to the admin urlconf."""
         urls = super(DjrillAdminSite, self).get_urls()
         try:
-            from django.conf.urls import include, patterns, url
+            from django.conf.urls import include, url
         except ImportError:
             # Django 1.3
             #noinspection PyDeprecation
-            from django.conf.urls.defaults import include, patterns, url
+            from django.conf.urls.defaults import include, url
         for path, view, name, display_name in self.custom_views:
-            urls += patterns('',
-                url(r'^%s$' % path, self.admin_view(view), name=name),
-            )
+            urls += [
+                url(r'^%s$' % path, self.admin_view(view), name=name)
+            ]
         for path, view, name in self.custom_urls:
-            urls += patterns('',
-                url(r'^%s$' % path, self.admin_view(view), name=name),
-            )
+            urls += [
+                url(r'^%s$' % path, self.admin_view(view), name=name)
+            ]
 
         return urls