[tex-hyphen] hyphenation group

[Steve Peter]

> About names and structure:
> - how to deal with changes in languages (spelling)  - how to deal with 
> dialects
> Maybe Steve Peter has ideas about how such things can be grouped?

My thoughts would be to provide a generic command along the lines of

\hyphenation[nl, 2004-09-01]

that would load the Dutch hyphenation patterns as of September 1, 2004. 
There should of course be sensible defaults. Dialects could be handled 
via extension to the language code (as is done elsewhere), and changes 
in orthography could be handled via the date.

Steve