Resolve "PDF export for timetables"

Closes #51 (closed)

aleksis/apps/chronos/migrations/0001_initial.py

@@ -41,6 +41,7 @@ class Migration(migrations.Migration):
                 ),
             ],
             options={
+                "default_permissions": (),
                 "permissions": (
                     ("view_all_timetables", "Can view all timetables"),
                     ("view_timetable_overview", "Can view timetable overview"),