
0.7 - Added recorder and three-hole pipe.
      Added weld and tapered joins.

0.6 - Added some example scripts

0.5 - Folk whistle design somewhat refined

0.4 - Design tools no longer depend on cffi

0.3 - Sketch uses less memory
      Add pennywhistles

0.2 - Add --embextra parameter to flutes
      Shawms
      Improved hole geometry

0.1 - Initial release
