Thu, 11 Sep 2008 22:22:20 +0200 wenzelm finish: Future.shutdown last;
Thu, 11 Sep 2008 21:53:53 +0200 wenzelm eliminated requests, use global state variables uniformly;
Thu, 11 Sep 2008 21:04:09 +0200 wenzelm finish: Future.shutdown;
Thu, 11 Sep 2008 21:04:07 +0200 wenzelm added is_empty;
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