OCamlbuild support in Chamo

The Chamo editor now includes some ocamlbuild support through the internal command "ocaml_build": An ocamlbuild command is proposed to the user who can edit it and run it.

















The output of the command is displayed in a new "outputs" window, and is analyzed. In case of error (or warning considered as error), the editor displays, in the active view, the file where the error was found, and highlights the corresponding characters.

The command used to compile is kept associated to the file, so that it is proposed the next time the internal command "ocaml_build" is launch on the file. These associations are even stored on disk to be kept between two sessions of Chamo launched in the same directory.