travis: no py3
travis: no py3

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