lua modules generated by the CHDK build process.
propsetN.lua
  These contain the propertycase IDs for the known property sets.
  LUALIB/propcase.lua is the suggested way to access these values
modelist.lua 
  Contains an array of capture mode names indexed by CHDK mode number
  LUALIB/capmode.lua provides a friendly interface to capture modes
cnf_*.lua
  Contains name / ID mappings for set_config_value
