Ocaml/upgrade and new

Work on ocaml packages:
  new: dypgen, lablgl, patoline, ocaml-cairo, camlimages
  updated: ocamlnet, lablgtk, sqlite3, camlzip, omake

Notes:
  most of the updated packages did not compile with ocaml-4.00.1
  omake needs an rc1 version to compile camlimages with 4.00.1
  since this is rc, I kept the current version as default.