Update to Django 1.9

- update all dependencies
- fix deprecation warnings and errors for Django 1.9 compatibility

gnuviechadmin/managemails/urls.py

@@ -5,7 +5,7 @@ views.
 """
 from __future__ import absolute_import, unicode_literals
 
-from django.conf.urls import patterns, url
+from django.conf.urls import url
 
 from .views import (
     AddMailAddress,
@@ -15,8 +15,7 @@ from .views import (
     EditMailAddress,
 )
 
-urlpatterns = patterns(
-    '',
+urlpatterns = [
     url(r'^(?P<package>\d+)/mailbox/create$',
         CreateMailbox.as_view(), name='create_mailbox'),
     url(r'^(?P<package>\d+)/mailbox/(?P<slug>[\w0-9]+)/setpassword$',
@@ -29,4 +28,4 @@ urlpatterns = patterns(
     url(r'^(?P<package>\d+)/mailaddress/(?P<domain>[\w0-9-.]+)/(?P<pk>\d+)'
         r'/delete$',
         DeleteMailAddress.as_view(), name='delete_mailaddress'),
-)
+]