templates - sync from community-templates

refs #13430, #13236 - backport REAL_ACTIONS from 8ca6c6b

fixes #12669 - making sure that code which requires a new attribute doesn't break migrations

the lookup_value_matcher attribute code adds a callback which expects
the attribute to exist, but when upgrading foreman, this can be a bit of
an issue, when db:migrate touches existing hosts/hostgroups, and the...

fixes #12187 - checking if OpenStack is defined before calling that constant

(cherry picked from commit 49c332e55d61d08eb51ebec8029889a7e396e125)

fixes #12791 - allow access to boot_files_uri and medium in safe_mode

(cherry picked from commit 1c81a696e4556ae3c17146afaff2fe6e2c52688d)

Fixes #12909 - Keep 'reset zoom' buttom on the left

(cherry picked from commit 5ac689f104baeb6c6a1a1253fed47ee867d98d37)

fixes #11346 - on new host, nic shouldn't try to call matcher

there's no point in doing the call anyway (can, theoretically, use the
fqdn field instead of asking the host) because there shouldn't be any
lookup keys with that host's fqdn, as it's a new host....

fixes #13430 - add missing actions to virt power manager

When rebooting a vm via power manager, this fails:

| TypeError: nil is not a symbol | /Users/f0218175/foremandev/foreman/app/services/power_manager/virt.rb:25:in
`block (2 levels) in <class:Virt>'...

fixes #13297 - ssh_provision: try keyboard-interactive as well

With password auth try keyboard-interactive as well since (non PAM
based) password authentication might be disabled in sshd_config (as e.g.
on SLES12).

fixes #13247 - make sure Ace editor resizes on fullscreen

(cherry picked from commit 29e517956da1243353ae9e948033c5d5ffeafd87)