added needed config_default file to setup.py package_data; this should fix pip install
added needed config_default file to setup.py package_data; this should fix pip install

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