immler@in.tum.de [Thu, 19 Mar 2009 16:18:57 +0100] rev 34538
Prover as actor managing ProofDocument-versions (removed EventBus structural_changes);
added actor to TheoryView, receiving updates of Commands (removed EventBus command_info);
Prover.edit_document from Makarius 'broken' repository;
LinearSet: fixed prev