Mon, 11 Jul 2011 23:15:04 +0200 wenzelm tuned;
Mon, 11 Jul 2011 22:55:47 +0200 wenzelm tuned signature -- corresponding to Scala version;
Mon, 11 Jul 2011 22:50:29 +0200 wenzelm made SML/NJ happy;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip