Release Version 2.1.0 [XX XXX XXXX]
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+ - added Boulderdash style "snap-pushing" (thanks to Achim Härtel)
- bug fixed that prevented walking through tubes when gravity on
- enhanced sound system (especially regarding stereo and loop sounds)
- new structured setup menu (with sob-menues for graphics and sounds)
- added support for TrueColor PCX graphics files
- added support for 16 bit WAV sound files
- added "quick save" and "quick load" functions with shortcut key
+ - added single-step playing mode (automatic pause after each step)
- changed default slipping behaviour of gems back to 2.0.0 style;
this is now an element property for gems in the level editor,
although existing converted levels use the new EM gems behaviour