+ - single graphics and animations can now be replaced with different
+ ones (independantly from default image files which may be larger)
+ by defining and using additional image files
+ - element animation length, speed and mode now freely configurable
+ - automatic tape playing function for game engine and level testing
+ - missing steel wall graphic added (thanks to Equinox Tetrachloride)
+ - added new contributed levels from the following players:
+ + Abby King (14 levels)
+ + Andreas Buschbeck (80 levels with complete artwork set)
+ + David Hutchinson (25 levels with graphics set)
+ + Equinox Tetrachloride (150 levels guaranteed to be solvable)
+ + Sylvan Hancock (39 levels)