tools: notifier: simple first match include/exclude.

See feature page[1]

[1] http://www.ovirt.org/Features/configuration-event-subscribers

Change-Id: Ia0b94ee8665ff8030b36b463207e50beea44b47d
Signed-off-by: Mooli Tayer <mtayer@redhat.com>
Signed-off-by: Alon Bar-Lev <alonbl@redhat.com>