Updating astropy-helpers to v1.3.1
Updating astropy-helpers to v1.3.1

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