templates - sync from community-templates

Fixes #17303 - correct position of validation msg for parameters

(cherry picked from commit 1cf7eb29f4d97579c30dce26caa1f2fffbb81073)

fixes #17012 - openstack render scheduler_filter correctly

(cherry picked from commit ff49b2de3256c32629e0a99f76aa3fb9ab52b3ba)

Fixes #17153 - Consistent name for variable_type in the api

(cherry picked from commit 63e9ae3c027a82dc2d21a13e953a6dc8ec6e2523)

Fixes #17107 - list override in filter API

(cherry picked from commit 963d2d8f57bc2c0ab4a2773a863e8c083b18c630)

templates - sync from community-templates

fixes #16805 - reload host parameters on host group change

On Rails 4.2, `Host#type_changed?` may return nil due to bug #24220
causing data-type-changed to be missing from the host form and the JS
in handleHostgroupChangeEdit to assume host#edit is a hostgroup form....

Fixes #16723 - Lazy load data for dashboard widgets

(cherry picked from commit 1d551e514de6b34dcba7ce6e3e8c0bb171e55b6b)

Fixes #12111 - Set width for host list action column

This makes no siginificant change to core but allows unbreaking
foreman_column_view plugin.
(cherry picked from commit 7fe3001ede3c3529079be9fb928ab3265475e16d)

Fixes #5901 - fine grain for vmware CPU selectors

(cherry picked from commit 0cd2ddf0cff1b07aeca2e2dee835937fde613b8b)