Modified: 1998-01-09, conditionalised use of locate-data-directory
Modified: 1998-01-27, added mouse interface code
(provided by Sean MacLennan
Modified: 1998-02-06, fixed bug, where sokoban-done wasn't reset to
zero in sokoban-restart-level
Modified: 1998-02-27, patches from Hrvoje Niksic
added bounds check to sokoban-goto-level
added popup menu
display level and score in modeline
Modified: 1998-06-04, added `undo' feature
added number of blocks done/total to score and modeline
Modified: 2003-06-14, update email address, remove URL
The game is based upon XSokoban, by
Michael Bischoff
The levels and some of the pixmaps were
taken directly from XSokoban