Fixes #11709 - better error for DNS conflict timeouts

Fixes #11034 - custom uniqueness validations for interface attributes

fixes #11766 - differentiate between puppet facts and those from plugins

+ add test

Fixes #11791 - avoid N+1 query caused by configuration status

fixes #11242 - Add operatingsystem_id to os_default_templates in API

fixes #11037 - Add ByIdName to environment model

Fixes #11761 - support hostgroup form push through AJAX

fixes #11807 - update existing lookup value when changed from nested host form

Fixes #11401 - Add scoped search to auth_source on name

Fixes #11689: hide editor container when hidden value.

http://projects.theforeman.org/issues/11689