Jormungandr: fix auth bug if no region
Kraken: do not catch dying worker

we stop the service, it's useless to catch the dying worker, the rest
will folow quickly
Jormungandr: make a retrievable from its external code reworks
Jormungandr: make /v1/vehicle_journeys callable
Version 1.4.7
Merge branch 'release_1.4.7' into release