[PATCH] rearrange code in intl sub directory

[Andrei Kholodnyi]

> The only thing about doing this is that "common" would be the only
> directory under lib, so I don't see the need for another level in the
> tree.

well, the need might be if we add another lib, e.g. libdumbtts.

> I am going to submit another patch that creates an "api" and a "clients"
> directory and moves the code for the api and clients into those
> directories, similar to what we had in OpenTTS.

this is good.

guys, what about this series? should we push it?