g3d.utils not (anymore) available?

g3d.utils not (anymore) available?

Last week i tried to start coding with the libgdx library. As i would like
to try it's 3d context i rode the tutorial of Xoppa:
http://blog.xoppa.com/basic-3d-using-libgdx-2/
Well, i understood his examples and started to code in eclipse. But as
soon as i got to the modelbuilder usage i stuck:
@Override
public void create() {
...
ModelBuilder modelBuilder = new ModelBuilder();
...
}
i imported a few other classes without problems, but i didn't find
...g3d.utils.modelbuilder
I googled and took a look at their github, where the package g3d.utils.
exists. And now, i don't know anymore. i'm using the latest stable build
0.9.8
I hope you can help me. Thanks for your time!