rm-logfiles

added Syntax.read_typ;
Syntax.extend: added read_ty, removed def_sort argument;

#! /bin/sh
#rm-logfiles: remove useless files from subdirectories
rm log */make*.log */make*.log.gz */make*.log.z
rm */test
rm */.*.thy.ML
rm */ex/.*.thy.ML
rm HOL/Subst/.*.thy.ML