Upgrade of Rya to RDF4j

[Jorge Machado]

Hi guys, 

I saw on https://github.com/apache/incubator-rya/pull/291that we migrated from 
OpenRDF Sesame 2.7.6 to RDF4J 2.3.1 but I don’t see a release for it. 

Any tipps how should I do it ?

Regards

Jorge Machado
www.jmachado.me