improve efficiency of loading headers by creating a lazy spectra/header loading class
improve efficiency of loading headers by creating a lazy spectra/header
loading class

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