move Code_Test to HOL/Library;
add corresponding entries in NEWS and CONTRIBUTORS
(* Author: Lawrence C Paulson, Cambridge University Computer Laboratory
Copyright 1996 University of Cambridge
*)
header {* Blanqui's "guard" concept: protocol-independent secrecy *}
theory Auth_Guard_Shared
imports
"Guard_OtwayRees"
"Guard_Yahalom"
begin
end