Wed, 17 May 2017 13:52:46 +0200 wenzelm tuned;
Wed, 17 May 2017 13:50:30 +0200 wenzelm eliminated unused operations;
Wed, 17 May 2017 13:47:19 +0200 wenzelm tuned signature;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 tip