Create a SpectroscopicAxis with the image frequency when the imagfreq argument is True
Create a SpectroscopicAxis with the image frequency when the imagfreq argument
is True

--HG--
branch : gildasclass

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