Thu, 29 Dec 2016 17:25:32 +0100 wenzelm re-use resources from session;
Thu, 29 Dec 2016 16:00:29 +0100 wenzelm clarified Document.length -- independent of text_length;
Thu, 29 Dec 2016 15:37:15 +0100 wenzelm more robust shutdown;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 tip