[Stk] New Release: RtAudio Version 2.1

[Gary Scavone]

A new version of RtAudio is now available from:

  http://www-ccrma.stanford.edu/~gary/rtaudio/

Some of the changes since the last release include:

  * added Mac OS X CoreAudio support
  * added Windows ASIO support
  * "configure" support added for unix systems
  * adopted MIT-like license
  * various bug fixes
  * API change to getDeviceInfo(): device argument must be an
    integer between 1 - getDeviceCount().

Thanks to all those that helped out with feedback.  Let me know if you 
have any more problems!

Gary Scavone