updated setup.py to match tag name scheme update
updated setup.py to match tag name scheme update

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