Add support for Renaissance CDFM format (Zone 66)
Minor tidy up and export functions for Win32
Add support for PCM (sampled) instruments
cdfm: Add support for PCM instruments
klm: Fix missing \n in error message
Update .gitignore with new autoconf test fluff
Update copyright year to 2013
Simplify conversion formulae for OPL fnum to/from hertz
Change default MIDI velocity from 64 to 127
Add PCM patch descriptive name