Added an example to redshift Gaussian in wavelength space and conserve flux.
Added an example to redshift Gaussian in wavelength space and conserve flux.

dhomeier/astropy,dhomeier/astropy,aleksandr-bakanov/astropy,StuartLittlefair/astropy,aleksandr-bakanov/astropy,stargaser/astropy,dhomeier/astropy,larrybradley/astropy,AustereCuriosity/astropy,funbaker/astropy,joergdietrich/astropy,MSeifert04/astropy,astropy/astropy,AustereCuriosity/astropy,stargaser/astropy,lpsinger/astropy,kelle/astropy,bsipocz/astropy,pllim/astropy,AustereCuriosity/astropy,lpsinger/astropy,saimn/astropy,astropy/astropy,pllim/astropy,mhvk/astropy,mhvk/astropy,dhomeier/astropy,AustereCuriosity/astropy,DougBurke/astropy,MSeifert04/astropy,kelle/astropy,AustereCuriosity/astropy,astropy/astropy,joergdietrich/astropy,saimn/astropy,MSeifert04/astropy,StuartLittlefair/astropy,DougBurke/astropy,mhvk/astropy,kelle/astropy,tbabej/astropy,kelle/astropy,funbaker/astropy,saimn/astropy,lpsinger/astropy,bsipocz/astropy,stargaser/astropy,mhvk/astropy,bsipocz/astropy,StuartLittlefair/astropy,tbabej/astropy,lpsinger/astropy,saimn/astropy,larrybradley/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,lpsinger/astropy,kelle/astropy,tbabej/astropy,astropy/astropy,pllim/astropy,tbabej/astropy,tbabej/astropy,stargaser/astropy,pllim/astropy,StuartLittlefair/astropy,DougBurke/astropy,DougBurke/astropy,pllim/astropy,larrybradley/astropy,astropy/astropy,StuartLittlefair/astropy,larrybradley/astropy,joergdietrich/astropy,mhvk/astropy,MSeifert04/astropy,saimn/astropy,joergdietrich/astropy,bsipocz/astropy,aleksandr-bakanov/astropy,funbaker/astropy,joergdietrich/astropy,dhomeier/astropy,funbaker/astropy