Transfer custom domain

[peterpeterparker]

Transferring a custom domain from satellite A to B can be done by deleting the custom domain in A and then adding it to B but, this can only be cleanly achieved if the DNS entries are deleted and added again as well.

It would be possible to do so without cleaning the DNS, that would require calling PUT.

So we should find some way in the console to either support transferring custom domain or having an option to call PUT instead of POST in B.

Note: Low priority task.