This patch adds setting the $ORGIN for all reverse resolution IPv6 zones for
any user provided zone templates, not just the default template.
This makes a better default $ORIGIN value, and without this origin,
any cobbler records are wrong.

You can always add a different $ORIGIN to the user provided template, but
this should be done after including the hosts from cobbler e.g.

\$TTL 300
@                       IN      SOA     $cobbler_server. nobody.example.com. (
                                        $serial   ; Serial
                                        600         ; Refresh
                                        1800         ; Retry
                                        604800       ; Expire
                                        300          ; TTL
                                        )

                        IN      NS      $cobbler_server.

$host_record

\$ORIGIN .
1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.c.b.a.9.8.7.6.5.4.3.2.1.1.0.0.2.ip6.arpa. IN PTR  myhost.nobody.example.com.

Tony Kew
Merge pull request #473 from tonykew/master

FEATURE - IPv6 DNS support for manage_bind.py - enhancement for user zone template