+2010-04-20
+ * changed native Emerald Mine engine to support different viewport sizes
+
+2010-04-19
+ * changed native Supaplex engine to support different viewport sizes
+
+2010-04-07
+ * added initial, experimental support for different viewport properties
+ (with "viewports" being menu/playfield area and doors; currently the
+ size of the menu/playfield area and door positions can be redefined)
+
+2010-04-02
+ * added initial, experimental support for different window sizes
+