check timeout_ignored as in ML, before applying timeout_scale;

merged

proper build of required session images vs. build with Mirabelle presentation;

reactive "sledgehammer";

reactive "sledgehammer_filter": statically correct, but untested (no proof_file);

clarified command-line;

clarified signature; supporess empty results;

clarified signature;

clarified log content;

reimplemented Mirabelle as Isabelle/ML presentation hook + Isabelle/Scala tool, but sledgehammer is still inactive;

tuned;

unused;