freshadminvm: allow different vm names than crowbard[23]
freshadminvm: allow different vm names than crowbard[23]

If the environment variable "crowbar_vmname" is set, its
content is allowed as admin vm name, too.

gosipyan/automation,SUSE-Cloud/automation,aspiers/automation,gosipyan/automation,SUSE-Cloud/automation,aspiers/automation,aspiers/automation,gosipyan/automation,SUSE-Cloud/automation,aspiers/automation,SUSE-Cloud/automation,gosipyan/automation