Thanks to everyone who contributed code, and everyone who helped with
testing.

Chris Kuethe for cool patches, and maintaining the OpenBSD port.
Cyro W. Corte Real Filho for some early help with building on Linux.
Jean-Edouard Babin for testing on NetBSD and OS X.
Leif Terrens for initial OpenBSD testing.
Moritz Grimm for chasing a weird crash.
Claudio Leite for DLT_PPP_ETHER decoding.
