Fri, 23 Dec 2016 11:21:38 +0100 wenzelm omit unused markup;
Fri, 23 Dec 2016 11:19:28 +0100 wenzelm removed junk;
Thu, 22 Dec 2016 11:55:22 +0100 wenzelm proper clean_yxml;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 tip