Cleanup and work on migrating to Selvbetjening 8
Merge branch 'hotfix/7.9.0'

Conflicts:
	kita_website/settings.py
	kita_website/urls.py
Merge branch 'production'
Simplify 500 error page
Make compatible with Selvbetjening 8.0
Work on memberships for Selvbetjening 8.0
Add memberships to Selvbetjening 8.0
Remove old dependency
Fix crash if FORUM_DATABASE_DISABLED is set'
Fix filepath in 404 template
Merge branch 'release/8.4.0' into production