wip/ap2-zeroconf 0.3nb3 NetBSD

This module allows and Apache 2.0 web server to register its services on a Zero Configuration network.

Zeroconf <http://www.zeroconf.org/> is a working group of the IETF. The charter of this working group is to have computers network using TCP/IP without prior configuration: no address servers or name servers are needed. Zeroconf consists of the following protocols:

* Link-local IP addressing, where hosts pick a random address in the 169.254/16 range. * Multicast DNS or mDNS, where every host runs its own DNS responder that listens on port 5353 and communicates over multicast UDP/IP address 224.0.0.251 (IPv6 equivalent ff02::fb). All hosts are collectively authorative for the .local. domain. * DNS Service Discovery or DNS-SD allows hosts and their user to register and browse services by a human-readable name.

mod_zeroconf relies on an external mDNS Responder and currently supports net/howl.