Summary
- merged
- tuned;
- tuned;
- tuned;
- eliminated pointless flag (see also 6533ceee4cd7);
- tuned;
- merged
- structured a lot of ancient, horrible proofs
- clarified Isabelle_Process phases;
- clarified order: update syslog before handling exit;
- tuned error message;
- clarified signature: more robust startup_join;