define new aliases for lum dens conversion functions
define new aliases for lum dens conversion functions

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