v0.23

Release Notes:

• Support new Greaseweazle model: F7 Slim
• Read/write/verify 1.44M IMG image files
• Read/write Kryoflux stream files
• Optimisations:
  • Rewrite read/verify conversion routines in C
  • Fast Amiga track reads (now read an Amiga disk in approx 45 seconds)
• Shrink the Windows distribution zip file
• GW: New track-selection syntax (--track=). See the wiki.