re-added chpass-vhost-subsystem mistakenly removed on commit ddd58b6f7
re-added chpass-vhost-subsystem mistakenly removed on commit ddd58b6f7

it's needed by Webenabled v1.0 that is still in production, and several
users reported the problem with the missing script.

devpanel/serverlink,devpanel/serverlink,devpanel/serverlink,devpanel/serverlink,devpanel/serverlink