Operator 2.0 release candidate 2

Schema for the 2.0 domain custom resource is now final.

Please be aware that domains created with 2.0 release candidate 1 are not compatible with release candidate 2. You will need to delete any preexisting domains from release candidate 1 and regenerate their domain.yaml files.

Many other bug fixes found by our early access testers have been fixed. Thanks for your support!