collection of file and message objects for Pd by dieb13

 ext13 is a collection of various externals for Pd
 .
  * catch13~, throw13~, send13~, receive13~: alternate versions that
        accept a set msg
  * mandelbrot, mandelbrot~: calculcate mandelbrot data
  * wavinfo: get info from WAV files
  * strippath: strip the path from a filename
  * filesize: get the size of a file
  * openpatch: open a patch file with a message
  * ftos: convert a float to symbol
  * ossmixer: control the OSS mixer
  * cdplayer: control the CDROM drive
  * kalashnikov: send out many bangs