Fixes #18317 - Clone user role via API

Fixes #7495 - Create/delete autosign entries via API

fixes #13618 - cache expensive vmware api calls

Fixes #17403 - enable exporting of templates

Fixes #15926 - [API] Add method to get ENC values of a host

fixes #9110 - add freeip route to API

Fixes #3582 - Parameters on subnets

fixes #13895 - replace :to with :action in routes

Using :to with a string that doesn't contain # is deprecated since
Rails 4.2, and it should instead use :action or :controller as
appropriate.

http://edgeguides.rubyonrails.org/4_2_release_notes.html#action-pack-deprecations

fixes #12436 - as a user I want to deploy vSphere vms on a storage pool

Fixes #12718 - smart proxy log table

This patch adds a table with logs fetched from Smart Proxy /logs new API. It
returns latest N log entries from a simple memory buffer. The table supports
filtering by level, custom filtering and it introduces several overview...