fixes #9118 - host mailer should not fail if no owner set for host

Fixes #9495 - Require identifier for managed bonds

Fixes #9497 - Require MAC for managed BMC

Fixes #9427 - Return meaningful errors from subnets/freeip and parse the error response to the UI

Fixes #9147 - move managed checks to the start of the DHCP/DNS/TFTP orchestration checks

fixes #9551 - checking the encryption format so osx doesn't fail

fixes #7764 - add quirks mode to JSON.dump

fixes #8331 - provide some tools for filtering mail

fixes #9334 - reverse the order of 'hosts/provisioning setup' sub-menu

fixes #9397 - Make usage of @host.operatingsystem in UnattendedController consistent

Changed all host.os to host.operatingsystem