Installation instruction for windows

[kyoann]

First, I think that having ocaml run on a jvm is really fantastic. It means that with a few jars installed, you can have an ocaml distribution and, even more, you can access the whole java library. So thanks a lot ! and I wish this port were part of the standard ocaml distribution !

That being said, I cannot use it on windows, when I compile a simple ml file with ocamljava, it fails because it cannot link with ocamlrun.jar...(no pb mac os...)