Merge branch feature/jorgen.lind/OptionalIOManagers with refs/heads/master...

Merge branch feature/jorgen.lind/OptionalIOManagers with refs/heads/master into refs/merge-requests/123/train
3 jobs for !123 with feature/jorgen.lind/OptionalIOManagers into master in 2 minutes and 55 seconds (queued for 1 second)
merge train