fixed explosion when computing accessibility

use "eproof_ram" script if available (plug-in replacement for "eproof", but faster)

tuning

merged

further imitation of "usedir" shell script; Pure/build observes build_images option, unlike traditional version; tuned signature;

make nat_cancel_sums simprocs robust in the presence of schematic variables; add regression tests

export code relatively to master directory

require explicit initialization of options; more explicit Position operations;

tuned signature;

define build_options from command line;

some basic Isabelle options;

basic jEdit mode for Isabelle options;

basic support for stand-alone options with external string representation;

minimal build_job;

restrict to required sessions;

proper commas_quote;

tune;

simplified script to build Isabelle/ML;

added eq_file / copy_file corresponding to File.eq / File.copy in ML;

merged

removed ML module DSeq which was a part of the ancient code generator (cf. 58e33a125f32)

deactivating quickcheck narrowing examples to find out if this causes the system error on the current isatest

support for detached Bash_Job with some control operations;

allow catalog entries to be commented-out;

support external processes with explicit environment;

include COMPONENT/etc/sessions as catalog for more directories, for improved scalability with hundreds of entries (notably AFP); misc tuning and simplification;

less redundant data structures;

clarified topological ordering: preserve order of adjacency via reverse fold;

support Session.Queue with ordering and dependencies;

clarified signature;

more explicit treatment of initial Pure sessions;

more general support for Isabelle/Scala command line tools;

tuned width;

prefer general Properties.Value.Boolean;

more SHA1.digest operations;

tuned import;

tuned source structure;

allow explicit specification of additional session directories;

more errors;

some HOL sessions;

cumulate semantic Session_Info, based on syntactic Session_Entry; tuned errors;

more tight treatment of reset_name;

more informative errors;

added parser for Session_Info;

repair MaSh exporter

optimize parent computation in MaSh + remove temporary files

make the monomorphizer more predictable by making the cutoff independent on the number of facts

speed up MaSh queries

use better score function, based on previous evaluation (cf. Deduct 2011 slides)

attempt at meshing according to more meaningful factors

don't include hidden facts in relevance filter + tweak MaSh learning

removed debugging output

removed expensive HO check in MaSh

speed up tautology/metaness check

optimized MaSh output by chunking it

fixed MaSh state load code so it works even if the facts are read in disorder

learn from minimized ATP proofs

improved meshing of MaSh and Meng--Paulson if some MaSh suggestions are cut-off (the common case)

use async manager to manage MaSh learners to make sure they get killed cleanly

more consolidation of MaSh code