+2014-05-15
+ * removed MS-DOS support
+ * removed native X11 support (X11 now only supported via SDL/SDL2)
+
+2014-05-14
+ * cleanup of functions RedrawPlayfield() and BlitScreenToBitmap()
+
+2014-05-13
+ * fixed level redraw after quick-loading tape with small tile graphics
+
+2014-03-03
+ * added compatibility code for existing request door animation settings
+
+2014-03-01
+ * added ultra-generic, ultra-flexible request door animation handling
+