This commit adds most of the functionality required for API v1

The overall goal was to extract the existing JSON response
overall controllers, and to move them to a seperate name space.

• documentation was added to all requests (available under /apidoc)...

adds foreman versions to response headers

fixes #1962 incorrect value returned when on the fly ldap is disabled

fixes #1637 adds spice support

added vm name and cursor release instruction to the spice console title.
this is a follow up to 057d497

Revert "Show all Compute Resources if Compute Resource user filtering is not in use"

This reverts commit 6bc745327d0e354c695eaef61162e54b9b198780.

Show all Compute Resources if Compute Resource user filtering is not in use

Fixes #1823 - Use Compute Resources permissions for Virtual Machine tab

fixes #1957 - remove old libvirt hypervisors code

Since foreman 1.0 libvirt hypervisors are now part of compute resources
this patch removes the old code and migrate any existing hypervisors to
be libvirt based compute resources.

update global parameters title to match other views

fixes #1074 run distribution graph too vague