fixes #17157 - inconsistent mapping of host owner

There is user_group which is assigned to one host as owner
with id=x. For organization assigned to user with same id=x,
on edit page showing a grey color with message
"this is used by a host".
With this commit, it should not show message to organization...

Fixes #17535 - Associate host with multiple NICs to VMWare VM

Fixes #17487 - support sessions for api calls

- authenticated api calls save user to session and set
flag api_authenticated_session
- sessions with such flag allow posting requests without CSRF token
- api sessions exipre the same way as UI sessions
- api sessions don't store any additional data to keep the requests...

Refs #1556 - Remove puppet docroot setting from db and tests

Fixes #1556, #11615 - Remove puppet rdoc support

Puppet rdoc support has been broken for a long time. Removing it from
Foreman.

Fixes #17494 - Remove stray end statement

fixes #11127 - show error when rebuild reboot fails

fixes #17484 - remove reported_at sequence from report factory

Prevents reports getting ever more out of sync from Time.now.

Fixes #17483 - async task creation returns 202

Includes task link in response

Fixes #17296 - Add setting access_unattended_without_build