2009-03-02 Timothy Bourke 2009-03-02 find_consts: fold in preference to foldl; hide internal constants; remove redundant exception catch
2009-03-01 wenzelm 2009-03-01 use long names for old-style fold combinators;
2009-03-01 wenzelm 2009-03-01 avoid fragile parsing of end_timing result -- would have produced GC time on MosML, for example;
2009-02-27 wenzelm 2009-02-27 observe basic Isabelle/ML coding conventions;
2009-02-27 wenzelm 2009-02-27 moved find_theorems.ML and find_consts.ML to Pure/Tools, collecting main implementation in one place each;