Added extprot.1.1.2.

Changes since version 1.1.1
===========================
* conditionally enable -bin-annot for ocaml >= 4.00 (ygrek)
* change in generated pretty-printers for records: print module path only for
  first field
* keep relative order of constant and non-constant constructors in generated
  OCaml type definition (required for "type_equals").
* OCaml 4.02.0 compatibility