fixes #5441 - Add instance_type support to oVirt provider

Fixes #21718 - Show errors properly when creating new oVirt CR

We try to retrieve available operating systems in an after_validation
hook. Trying to retrieve them makes no sense if the URL isn't
considered valid by us.

Fixes #21675 - OpenStack create host tab fails to load

Currently the tab is not loading as there are a few methods that are not
being overridden properly by the FogExtension.

After fixing that and adding the metadata key the tab loads

fixes #21676 - select vmware network for subnet

Fixes #21699 - fix vertical navigation animation glitch

fixes #21658 - add pagelet extension points to hostgroup form

fixes #21374 - audit host interfaces (#4929)

Fixes #21682 - Add Domain to Compute Resource API (OpenStack)

The Domain field was added to the Compute Resources table in #12054 as
part of the Openstack v3 support. This field needs to appear in the
APIdoc to be able to use it and in the RABL to read it.

Fixes #12054 - Openstack v3 support

Fixes #21503 - Import puppet classes when organzations changed