ADT2plug revision history

v0.99.4.22: 20150824
  update to current adlib tracker 2.4.22 play routine

v0.98.20: 20150101
  changed about dialog to show v0.98.20

v0.98.20: 20141223
  replay code rebased to adtrack 2.4.20

v0.972: 20141126
  song length detection bugged when the order list had 127 entries

v0.971: 20141124.1425
  changed frequency to 44100hz

v0.97: 20141124
  removed config dialog due to transition to freepascal
  integrated opl3 core inside the plugin
  newest opl3 core and replay routines from Adlib Tracker 2
  ymf262.dll is no longer necessary

v0.962: wip
  working config dialog
  own font config (style??? font+size+color)
  fixed tempo bugs while seeking

v0.961: (not released)
  fixed messagebox screw up; char $60 is now replaced with $27
  enhanced playlist song title display
  rad message importer now always uses a line length of 80 chars

v0.96:
  fixed sixpack decompression
  automagic S3M file skip (when no adlib channels are used in the s3m)
  improved info dialog (new layout, displays RAD song message)

v0.95:
  integrated adt2play into in_a2t
  first adt2plug release