[away3d] Away3DLite example ExSphereNormalMapTest doesn't compile?

[Mark Hopkins]

First off I just wanted to say away3d lite looks pretty cool :)

anyways I downloaded the source and examples and got all the examples
compiling in flex builder, except for ExSphereNormalMapTest.as

basically it could not find these two imports

        import away3dlite.lights.Light;
        import away3dlite.materials.shaders.PBBitmapShader;

and I don't see them in the source either, or the svn trunk, so I was
wondering where they are, or if they are beta features, or something
like that?