Add admin panel for listing user's groups and a button to kick them
Merge pull request #9 from J4LP/feature/admin-user-groups

Add admin panel for listing user's groups and a button to kick them
Fix bug where pings sent to a group go to people with pending applications as
well
Add settings for Celery cron jobs
Merge branch 'develop' of https://github.com/J4LP/newauth into develop
Merge branch 'bugfix/group-membership-on-application' into develop