argh srsly... need to support two versions of astropy
argh srsly... need to support two versions of astropy

low-sky/pyspeckit,keflavich/pyspeckit,vlas-sokolov/pyspeckit,jpinedaf/pyspeckit,pyspeckit/pyspeckit,keflavich/pyspeckit,low-sky/pyspeckit,e-koch/pyspeckit,pyspeckit/pyspeckit,e-koch/pyspeckit,jpinedaf/pyspeckit,vlas-sokolov/pyspeckit