+2008-01-20
+ * fixed crash bug caused by accessing invalid element (with value -1)
+ in UpdateGameControlValues()
+ * fixed graphical bug when using two-tile movement animations with EMC
+ game engine without explicitly using native EMC graphics engine
+
+2007-10-31
+ * fixed bug in new "can dig" feature (see below) so that an unsuccessful
+ try to push something (due to push delay) does not cause a dig action
+