fixes 1692 - bookmark edit dialog, did not allow to save / update bookmark name

Fixes puppetclasses search with pg database

The request is sorting the results on a field that isn't in the DISTINCT
SELECT'ed columns and pg doesn't like it.
Fixes #1607

improve SQL queries for host API requests

allow to consume provisioning templates via JSON, show method was missing

ensure that API calls get correct 404 error

we don't change mac/ip by default

This seems to be a bit tricky as facter not always report the correct mac.

managed hosts will not be auto updating by default, however one could still
define the ignore_puppet_facts_for_provisioning settings.

fixes #1115 Host parameters are not available via the API

don't allow to delete a provisioning template when its assigned to an OS default template

[ec2] added the ability to create multiple security groups

ensure that facter mac addressed and formatted correctly when imported into foreman