OCaml package documentation

1. js_of_ocaml 4.0.0
2. js_of_ocaml-compiler 4.0.0
3. js_of_ocaml-lwt 4.0.0
4. js_of_ocaml-ppx 4.0.0
5. js_of_ocaml-ppx_deriving_json 4.0.0
6. js_of_ocaml-toplevel 4.0.0
7. js_of_ocaml-tyxml 4.0.0