fixes #3661 - mis-redirection from /hosts/fqdn/edit to /hosts

fixes #3107 - enable sorting of hostgroups by label, sort by default

fixes #3516 - resource names (inc. domains) are now being parametrized when used to construct urls

fixes #3017 - split APIv2 controllers from v1 parents

fixes #3312 - support /users/extlogin as a login page based on REMOTE_USER

Fixes #3569, #3210 - Use port from foreman_url for templates

fixes #3581 - link to reports search for failed hosts should use "host = foo.example"

fixes #3338 - grey out VM form when editing is not supported

Fixes #3182 - Make IP optional in some circumstances

fixes #2951 - Host API documentation lacks compute_resource_id