Hi Christian,
I tried the newest version and it works fine for accents. The stemmer OTOH does not seem to be working. I think it needs to be integrated in the same way that the other lucene stemmers are integrated, using the whole lucene-analyzers-3.6.0.jar instead of the lucene-stemmers-3.4.0.jar. This is assuming that all class interfaces are kept unchanged between 3.4.0/3.6.0 lucene versions. Then again I'm no good in Java. Just talking from a generic oo-programming point.
Thanks Alex