fixed setup.py failure (again)
fixed setup.py failure (again)

vlas-sokolov/pyspeckit,allisony/pyspeckit,keflavich/pyspeckit-obsolete,e-koch/pyspeckit,vlas-sokolov/pyspeckit,dinossimpson/pyspeckit,jpinedaf/pyspeckit,pyspeckit/pyspeckit,jpinedaf/pyspeckit,bsipocz/pyspeckit,keflavich/pyspeckit,keflavich/pyspeckit,e-koch/pyspeckit,mikelum/pyspeckit,dinossimpson/pyspeckit,low-sky/pyspeckit,pyspeckit/pyspeckit,mikelum/pyspeckit,allisony/pyspeckit,bsipocz/pyspeckit,low-sky/pyspeckit