Sat, 20 Jul 2013 16:18:17 +0200 wenzelm obscure options;
Sat, 20 Jul 2013 16:16:23 +0200 wenzelm print_state at high priority -- fast and important;
Fri, 19 Jul 2013 23:29:43 +0200 wenzelm proper Future.shutdown, to wait for the scheduler thread to finish remaining tasks (notably external processes);
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