import all importer theories in compatibility layer

merged;

dropped obsolete ROOT.ML

plugged in pre-existing theories appropriately

switch of target Import-HOL_Light-Imported: not operative at the moment

turn on quick and dirty in batch mode

tuned whitespace

file system structure separating HOL4 and HOL Light concerns

distribution of compatibility theories

formal infrastructure for import sessions

dropped dead code

tuned whitespace

spurious set/pred correction

explicit locations for import_theory and setup_theory, for better user interface conformance; spurious set/pred correction

explicit locations for import_theory and setup_theory, for better user interface conformance

discontinued obsolete Library.foldl_map and Library.apply (NB: apply = fold I);

tuned;

tuned;

tuned;

canonical argument order for attribute application;

clarified terminology of raw protocol messages;

tuned;

tuned signature -- emphasize Isabelle_Process Input vs. Output;

explicit syslog_limit reduces danger of low-level message flooding; tuned;

retain original "uses" (again) -- still required for Thy_Load.use_file etc. in ML (notably for maintaining required/provided); tuned;

clarified scope of exception handlers;

relevant timing as in ML; more PIDE modules;

more fundamental pred-to-set conversions for range and domain by means of inductive_set

merged

tuned whitespace