Copy sphere map setting to instances.

git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@12 ed5b42cb-e716-0410-a449-f6a68f950b19

src/java/com/threerings/jme/model/ModelMesh.java

@@ -255,6 +255,7 @@ public class ModelMesh extends TriMesh
             mstore._textures = _textures;
             mstore._tstates = _tstates;
         }
+        mstore._sphereMapped = _sphereMapped;
         return mstore;
     }