NEW FEATURE: AutoSync status now shown during gameplay with icon

NEW FEATURE:  added autogen icon to select music
NEW FEATURE:  toggle for easter eggs in Machine Options
NEW FEATURE:  marvelous step timing togglable in Machine Options
NEW FEATURE:  Grade AAAA (all marvelous)
CHANGE:  Only show ScreenHowToPlay if at least one player chose easy

stepmania/src/NoteData.cpp

@@ -298,7 +298,7 @@ int NoteData::GetPossibleDancePoints()
 //An "OK" (Successful Freeze step) will add 6 points
 //A "NG" (Unsuccessful Freeze step) is worth 0 points
 
-	return GetNumTapNotes()*TapNoteScoreToDancePoints(TNS_PERFECT) +
+	return GetNumTapNotes()*TapNoteScoreToDancePoints(TNS_PERFECT) +	// not Marvelous
 		   GetNumHoldNotes()*HoldNoteScoreToDancePoints(HNS_OK);
 }