#14 Zeroconf support

[David Kessler]

I'm using Boa on embedded Linux systems that get IP
addresses via DHCP. It would be nice if Boa supported
Zeroconf DNS Service Discovery so Zeroconf enabled
clients can find the Boa servers without the need for
additional network infrastructure.

To accomplish this, I've modified Boa to register for
DNS service discovery via Apples's mDNS library/daemon.
Attached is a patch to 0.94.14rc21 that incorporates my
changes. Brief instructions:

1. Build and install Apple's open source mDNS package
(http://developer.apple.com/networking/bonjour/index.html)

2. Apply patch to Boa.

3. Configure Boa to include mDNS support (./configure
--with-mdns) and build/install.

4. Start Boa with a "-z" switch.

[David Kessler]

Boa mDNS Patch