Revision 331724

- Install dns-sd.1 manpage
- Support STAGEDIR
- Fix crashes on IPv6 network [1][2][3]
- Bump PORTREVISION for package change

PR:		ports/182199 [1], ports/182718 [2], ports/182815 [3]
Submitted by:	Matthieu Volat <mazhe@alkumuna.eu> [1],
		Nuno Subtil <subtil@gmail.com> [2],
		Anton Fuller <antonfuller@bv.mintemail.com> [3]