fixes #5631 - API v2 - host and hostgroups show.json.rabl should show all puppetclasses in child node
fixes #4204 - add config groups feature - assign multiple config groups to a host or hostgroup
fixes #1809 - foreman realm integration
fixes #3221 - add missing attributes to hostgroup show response
fixes #4393 - rename ancestry label to title
fixes #4349 - API v2 - add location and organization child nodes to user, domain, subnet, etc show json templates
fixes #4198 - API v2 - add child nodes to show responses. Ex. architecture should show operating systems node
fixes #3178 - add feature for compute profiles for hostgroups and hosts
fixes #3491 - API v2 rabl templates base, main, show for each controller
fixes #2931 - API v2 hosts JSON response, add *_name for each *_id
fixes #3017 - split APIv2 controllers from v1 parents