added configuration tests / py.test ignore stuff
added configuration tests / py.test ignore stuff

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