Fixed bug in my CC implementation

- Wasn't calculating faces for a give original vert correctly
    - vertices generated by surf.subd.cc.refine look about right
    - still missing edge and face connectivity

surf/test/subd/cc.py

@@ -18,7 +18,8 @@ class TestCC(unittest.TestCase):
     def test_refine(self):
         p = PolygonMesh(**self.cube)
         p2 = cc.refine(p)
-        print p2
+        # TODO: this test is meaningless ...
+        p2
 
 if __name__ == '__main__':
     unittest.main(verbosity=3)