wenzelm [Tue, 14 Oct 2008 13:01:58 +0200] rev 28582
info: back to plain printing;
maintain state as Synchronized.var (cf. Pure/Concurrent/synchronized.ML);
turned start into check_thread_manager, which forks the managing thread on demand;
simplified heap operations;
default preferences: only include e prover, which is most likely to be installed;
misc simplifcation and tuning;