Fixes #11468 - separate global and class parameters on host/hostgroup form

fixes #11242 - Add operatingsystem_id to os_default_templates in API

Fixes #11689: hide editor container when hidden value.

http://projects.theforeman.org/issues/11689

Fixes #2267 - general rebuild of TFTP, DNS, DHCP

Fixes #3650, #11600 - Compute Resource availability_zones, flavors, security_groups API v2 endpoints

refs #11738 - fix incorrect capitalisation and host group wording

fixes #11738 - add missing punctuation to provisioning template view

fixes #9108 - parent parameters are now overrideable

Fixes #11683 - Fixed Hostgroup#new parameters spinner when Lifecycle selected

fixes #3145 - host with a lot of parameters quicker