+ * fixed potential crash bug caused by illegal array access in engine
+ snapshot loading and saving code
+ * changed setting permissions of score files to be world-writable if
+ the program is not installed and running setgid to allow the program
+ to modify existing score files when run as a different user (which
+ allows cheating, of course, as the score files are not protected
+ against modification in this case)
+ * added (commented out) suggestions for RO_GAME_DIR and RW_GAME_DIR to
+ the top level Makefile for Debian / Ubuntu installations
+ * added saving read-only levels from editor into personal level set
+ (thanks to Bela Lubkin for the above four patches)