[luatex] hyphenation in luatex 0.87

[David Carlisle]

Hans,

> ah, actually that's on purpose: language zero is ignored

What!!!!!!!

Oh really please no.

\language=0 has been the default, US English language since the dawn
of time, This will break (and has broken) every format except
presumably context.

If you are serious about luatex being a generic engine and not simply
a context platform then _please_ back that out.

David