[Glance] Removal of glance-replicator

Hi all, The replicator has been purely depending of the Images API v1 and thus not operational at all for good couple of cycles now. As a part of the v1 cleanup we are going to remove the replicator command as well. If the replicator is needed (currently doesn't seem to as no-one even noticed that it deasn't work since we removed v1 api), lets not port the original just to v2 but open a spec for it and take the opportunity to come up with robust solution that will serve us well into the future. Thanks, Erno "jokke" Kuvaja