isabelle update_cartouches;
modernized header uniformly as section;
modernized setup; more standard module name; --HG-- rename : src/HOL/Tools/Function/context_tree.ML => src/HOL/Tools/Function/function_context_tree.ML
updated to named_theorems; modernized module name and setup;
tuning
moved 'fundef_cong' attribute (and other basic 'fun' stuff) up the dependency chain --HG-- rename : src/HOL/FunDef.thy => src/HOL/Fun_Def.thy