- added a compatibility option to allow multiple exits to be triggered.

This is required by Daedalus's travel tubes which contain a faulty script with some leftover debug code.

src/compatibility.cpp

@@ -146,6 +146,7 @@ static FCompatOption Options[] =
 	{ "floormove",				COMPATF2_FLOORMOVE, SLOT_COMPAT2 },
 	{ "soundcutoff",			COMPATF2_SOUNDCUTOFF, SLOT_COMPAT2 },
 	{ "pointonline",			COMPATF2_POINTONLINE, SLOT_COMPAT2 },
+	{ "multiexit",				COMPATF2_MULTIEXIT, SLOT_COMPAT2 },
 
 	{ NULL, 0, 0 }
 };