PR#6406: Expose OCaml version in C headers

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15017 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
allow long lines up to 132 chars in ocamldoc

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15018 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02