Fixes #5723 - Show host groups inherited via config groups in puppetclass index
fixes #8527 - pin rest-client to version compatible with current rbovirt

Pin rbovirt a bit in preparation for a jump in versions.
fixes #7487 - remove unused background-image containing UTF-8 character

UTF-8 was causing BOMs to appear in the precompiled CSS, which then prevented
these styles being applied, so bullet points appeared on the dashboard.
fixes #8467 - trends range selector is now visible
fixes #8459 - remove sp_subnet_id from api/hosts
Fixes #8428 - Connecting audits to existing users
fixes #8356 - refactor reset method for libvirt
Fixes #8499 - Link LICENSE from README
Fixes #8267 - accept template_url in call to foreman from proxy
Fixes #8421 - Host group search by OS attributes

Host group search by operating system only searches by name. Users
should be able to search by title and other fields, same as in the Hosts
index.
Fixes #8433 - Fix type transformation for all ENC-able NICs
templates - sync from community-templates
fixes #8471 - adds a number field input support

* change subnet vlan to number field
* change ldap port to number field
Fixes #8536 - can update and delete media with dot in name
Fixes #8284 - missing params in OS api docs
fixes #8348 - expose user variable to templates in group mail
fixes #8221 - search for subnet with taxonomy scope
fixes #8526 - file uploads are now possible via two_pane.

NOTE this will probably only work with HTML5 based browsers.
fixes #8513 - removing n+1 query from images#index
Fixes #8546 - Namespace interfaces and subnets to avoid a facts clash