This plugin is the default value for the `ConfType` and `InstallType`. It
represents a default behavior for configuring and installing OCaml project.

The configure part take care of checking:

 * Tools availability (ocamlfind, ocamlc et al)
 * OCaml version
 * Findlib packages

The install part take care of installing executables, libraries and data files
using standard environment variable (`\$bindir`, `\$datadir` et al).


