Fri, 27 Aug 2010 20:28:58 +0200 wenzelm eliminated obsolete Output.no_warnings, where no warnings were produced anyway;
Fri, 27 Aug 2010 20:09:36 +0200 wenzelm eliminated broken Output.no_warnings_CRITICAL -- context visibility does the job;
Fri, 27 Aug 2010 19:43:28 +0200 wenzelm more careful treatment of context visibility flag wrt. spurious warnings;
(0) -30000 -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip