[crossfire] Sound support on GTKv2

[mail-lists+cfdev at dogphilosophy.net]

I've been meaning to reply to this thread:

Other than at one point years ago managing to get a few inconsistent chirp noises out of the sound system, I've never managed to get it to work. However, if it's being opened up and worked on again, I'd definitely be willing to do some work on sound-effects and related "assets".