(svn r1417) Fix: The invisible tiles on the southern border are now converted to class MP_VOID when an old map (with wrong classified invisible tiles) is loaded.

I bumped the minor savegame version for that, even though it's not really necessary. We're not gonna run out of minor savegame versions anyway though. ;)

saveload.c

@@ -8,7 +8,7 @@
 
 enum {
 	SAVEGAME_MAJOR_VERSION = 4,
-	SAVEGAME_MINOR_VERSION = 2,
+	SAVEGAME_MINOR_VERSION = 3,
 
 	SAVEGAME_LOADABLE_VERSION = (SAVEGAME_MAJOR_VERSION << 8) + SAVEGAME_MINOR_VERSION
 };