Fri, 25 Jan 2013 13:09:34 +0100 wenzelm clarified notion of Command.proper_range (according to Token.is_proper), especially relevant for Active.try_replace_command, to avoid loosing subsequent comments accidentally;
Thu, 24 Jan 2013 21:18:30 +0100 wenzelm avoid extra fork for fulfill_proof_future whenever possible -- without proof terms it merely doubles the number of proof tasks redundantly, by piggy-backing another 10 microseconds task;
Thu, 24 Jan 2013 17:31:12 +0100 wenzelm report status more frequently on demand;
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