[CM] Upgrade snd.

[Bill Schottstaedt]

I made a new(er) osx 10.4.4 Snd image -- 

ftp://ccrma-ftp.stanford.edu/pub/Lisp/osx-10.4-snd. 

You can also go to an empty directory, untar the Snd tarball, configure 
and build it there, and then put the snd image anywhere.