Log Message:
pt2-clone: update to 1.39

Changes:

     * Added 128kB sample support again. This can be turned on by adjusting
       the 64K_LIMIT setting in (the new) protracker.ini to FALSE. Please
       read the 64K_LIMIT comment in protracker.ini first before doing this.
     * Fixed a bug where it wasn't always possible to mark the last sample
       point in the sample editor
     * Some other minor code changes