+2010-03-14
+ * started code cleanup of native Supaplex game engine
+
+2010-03-13
+ * integrated playing sound effects into native Supaplex game engine
+
+2010-03-10
+ * added configurable key shortcuts for the tape recorder buttons
+
2010-03-09
* added (hidden) function to save native Supaplex levels with tape as
native *.sp file containing level with demo (saved with a file name