Refs #3809 - Remove cops for empty lines

fixes #9030 - Adds support to clone config template via api

Fixes #7456 - Extract primary interface from host

• Tomas Strachota (tstrachota) <tstrachota@redhat.com>
• Marek Hulán (ares) <mhulan@redhat.com>
• Gregory Sutcliffe (GregSutcliffe) <gsutclif@redhat.com>

All host must have at least one primary interface and one provision (can...

fixes #8484 - make SmartProxyAuth concern more useful to plugins

fixes #8049 - Add timezone to user

Refs #3809 - Remove useless assignments

Refs #969 - Foreman-side changes for serving templates from the proxy

Fixes #8005 - Convert allowed NIC types to strings

- allowed NIC type classes need to be registered now
- api for interfaces use lowercase human readable values for defining types
- fixed output of api's create action to the standard format

Fixes #7733 - Remove hosts.yml fixtures and use FactoryGirl instead

fixes #7372 - API v2 - accept PUT/POST requests with wrapped root node to add/remove has_many associations of child nodes