[tldoc] tldoc updates

[Karl Berry]

    \OnCD{texmf-doc/doc/english/FAQ-en}

Fixed, thanks.

    the same for similar links, or shouldn't we use rather relative paths?

Yes, and \OnCD generates relative paths.  (There's a bug related to
that in hyperref, but that's another story.)

    what about tex4ht? Was that corrected?

Eitan just sent me mail saying it should be all set now.  I hope to
follow up on it tomorrow and make the HTML for English.  Soon, in any case.
I'll post when it's done.

Thanks,
karl