Test user creation with invalid data
Merge branch 'master' of github.com:infoeducatie/infoeducatie-ng
Merge branch 'master' of github.com:infoeducatie/infoeducatie-ng
Merge branch 'master' of github.com:infoeducatie/infoeducatie-ng
Merge branch 'master' of github.com:infoeducatie/infoeducatie-ng
Fix require validation
Fix tests for users