Bring back the intl subdirectory please

[Ian Lance Taylor]

Mark Kettenis <kettenis@gnu.org> writes:

> 2. Update intl/.  We can either upgrade to the gettext used by GCC or
>    a more recent version.  The GCC version is probably easier since it
>    already has the modifications needed for the layout of our source
>    tree.

This seems clearly desirable to me.  We can then simply keep intl in
synch with gcc.

Ian