fixes #3134 - disable vSphere fields on host edit, fix clone behavior
fixes #3206 - prevent any user including admin from creating lookup_value with fdqn= or hostgroup= if host/hostgroup does not exist
fixes #3218 - Remove Double calls to CR provider when creating a new host.
fixes #3111 - v2 API calls to /api/[class]/[object]/parameters/[parameter] return wrong object