Add support for Latin-1 characters in hyphenation algorithm

Ideally, it would support UTF-8, but Latin-1 is a big improvement
over ASCII nonetheless.

This patch disables the suffix function, which I haven't (yet) gotten
to work with Latin-1.  Suffix is, however, hard-coded for English,
and, in any case, I'm not sure how important it is.  In the meantime,
it isn't a huge loss.