Today, the Beta 6 brings translation updates in Dutch, Italian, Polish, Portuguese, Russian and Swedish (see updated links in the first post of this thread). It also comes with the final release of JOGL 2.5.0.

Dorin, I'm not sure to understand your issue. X and Y coordinates has always designated the center in plan of a piece of furniture, whereas elevation is the lowest point of a piece. Rotating a piece around a horizontal axis doesn't change its elevation to ensure it remains on the ground or the furniture where it's placed.