[tex-hyphen] License of hyphenation patterns

[Arthur Reutenauer]

> Not all files are covered by LPPL.

  Having co-authored the full list on http://www.tug.org/tex-hyphen/#languages
I'm very much aware of that.  This is a situation to be expected and
authors should choose whatever licence they think is best for their
contribution; but that wasn't my question.  Since the LPPL is a very
popular choice in the TeX world, for obvious reasons, it would be good
to get a clear idea of how compatible it is with other licences.

	Best,

		Arthur