[Gzz] Porting from zz to RDF

[Matti Katila]

Morning, 


    So, I'm currently at space level. Some modifications.

    Cell c;                    
    c.zzclone();      =>

        Resource node = ShortRDF.newNode(space.getModel());
        space.clone(node);

    With zz we used to have special dimension for clones.

    I'll add ALPH.clone predicate so we can easily check these.


 RDFNode1 ----(ALPH:clone)--+-> XYZ Node ---(ALPH:content)---> Literal(content)
 RDFNode2 ----(ALPH:clone)--+                                  "enfilade"
 RDFNode3 ----(ALPH:clone)--' 


    -space has one method more .getModel()
    -space has a lot of XXX


"interval message"


   -Matti