Fixes #983 - implement 3 state boot

Fixed 1972: Supporting search hosts by uuid

This patch adds support for searching hosts by uuid.
It is useful when you have the uuid of a virtual machine, and want to
get the Foreman host properties.

smart proxies api - filtering by proxy type

subnets api - removed required constraints from fields in update

The required constraints were blocking partial updates.

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

do not report internal state over api

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.