register_locale: produce stamps at the spot where elements are registered; tuned signature; misc internal tuning and simplification;

pretty_rule/print_results: no thm status here -- it is potentially slow and mostly uninformative/confusing as long as proofs are still unfinished;

pretty_thm_aux etc.: explicit show_status flag;

simplified attribute and method setup: eliminating bottom-up styles makes it easier to keep things in one place, and also SML/NJ happy;

@{binding} is not a constructor term and should not be inlined, otherwise we loose value polymorphism;

tuned;

use more informative Thm.proof_body_of for oracle demo;

Proofterm.approximate_proof_body;

fulfill_proof/thm_proof: pass whole proof_body, not just the projection to proof (which might be incomplete); more explicit oracle_proof;

removed misleading make_proof_body, make_oracles, make_thms, which essentially assume a *full* proof; added approximate_proof_body -- replaces former make_proof_body; added all_oracles_of; oracle_proof: explicit oracle result; fulfill_proof/thm_proof: require proper proof_body futures, to maintain full account of oracles and thms (repairs a serious problem of the old version);

avoid mixing of left/right associative infixes, to make it work with experimental Poly/ML 5.3 branch;

simplified addPrettyPrinter setup: may pass (fn ...) directly if type constraints are omitted -- addPrettyPrinter treated as a special case internally;

status_of: need to include local promises as well!

status_of: simultaneous list;