List: ensure id is set before buildRendering is called
List: ensure id is set before buildRendering is called

This matches Dijit behavior and ensures proper operation of the
DijitRegistry extension.

kfranqueiro/dgrid,maier49/dgrid,dylans/dgrid,dylans/dgrid,kfranqueiro/dgrid,maier49/dgrid,dylans/dgrid,maier49/dgrid,kfranqueiro/dgrid