0.14
  remove GOP support
0.13
  added GOP support
0.12
  adapted for pd 0.37
0.11
  allow backwards reading
0.10
  change allocation algorithm
0.9
  use copy buffers for cut and paste
  one level undo on sonogram part with 'undo' message
0.8
  check boundaries before updating
0.7
  use static buffers to avoid some crashes 
0.6
  fixed simultaneous record/play to use it in a real-time chain
0.5
  even safer cut and paste code !!!
0.4
  safer cut and paste code
0.3
  added phasogram
0.2
  added transfroamtions
0.1
  first implementation
