with the changes for fixing #1948 it is now possible to define tls policies
for destinations (remote domains or next-hop transports) instead of only for
Domains.
This patch reflects this addition by renaming all occurences of Domain with
Destination.
Signed-off-by: Stoiko Ivanov <s.ivanov@proxmox.com>
Reviewed-By: Dominik Csapak <d.csapak@proxmox.com>
