Include astropy-helpers in the tarball.
Include astropy-helpers in the tarball.

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