added raw_term_sorts and changed typ_of_term accordingly (part of fix
of the typevar-sort-constraint BUG);
various minor internal changes;
#! /bin/sh
#rm-logfiles: remove useless files from subdirectories
rm log */make*.log */make*.log.gz
rm */test
rm */.*.thy.ML
rm */ex/.*.thy.ML
rm HOL/Subst/.*.thy.ML