[CM] beta3 (osc, backtrace, etc)

[Heinrich Taube]

> ...the player currently handles wav and aiff.

actually its a bit more complicated than that. the player actually plays .snd  files  (e.g. that make-birds generates) on osx but it won't  on linux.  on the mac the audio info for the file lists it as a Core Music supported format. So it plays on osx even tho there is no explicit reader for .snd but on linux it won't play because no one has provided a reader and there is no fallback support from the os