update changelog
update changelog

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