renamed Isar/isar_output.ML to Thy/thy_output.ML;
tuned messages;
Antiquote.scan_arguments (moved from here);
moved ML context stuff to from Context to ML_Context;
(* Title: HOL/IOA/ex/ROOT.ML ID: $Id$ Author: Olaf Mueller*)time_use_thy "TrivEx";time_use_thy "TrivEx2";