add long name for Astronomical Unit
add long name for Astronomical Unit

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