Django 1.10 compatibility

[esagara]

Django 1.10 doesn't drop until August 2016, but we are getting deprecation notices.

``RemovedInDjango110Warning: You haven't defined a TEMPLATES setting. You must do so before upgrading to Django 1.10. Otherwise Django will be unable to load templates.
"unable to load templates.", RemovedInDjango110Warning)`

``RemovedInDjango110Warning: django.conf.urls.patterns() is deprecated and will be removed in Django 1.10. Update your urlpatterns to be a list of django.conf.urls.url() instances instead.
(r'^admin/', admin.site.urls),`