feat: Upgrade to Django 1.11

- Drop in update to 1.11

Signed-off-by: David Haynes <dhaynes3@gmu.edu>
3 jobs for upgrade-django in 48 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #2400
whats-open-py2.7

00:00:38

passed #2401
whats-open-py3.5

00:00:45

passed #2402
whats-open-py3.6

00:00:47