Upgrade to Django 1.11

- Literally no errors
Signed-off-by: David Haynes <dhaynes3@gmu.edu>

requirements/base.txt

-Django==1.10
+Django>=1.11
 django-crispy-forms==1.6.0
 django-ratelimit==1.0.1
 django-redis-cache==1.6.4
@@ -10,4 +10,4 @@ mysqlclient
 redis==2.10.5
 requests==2.11.0
 simplejson==3.8.2
-six
\ No newline at end of file
+six