update changelog
update changelog

stargaser/astropy,pllim/astropy,aleksandr-bakanov/astropy,lpsinger/astropy,mhvk/astropy,saimn/astropy,dhomeier/astropy,astropy/astropy,MSeifert04/astropy,larrybradley/astropy,StuartLittlefair/astropy,saimn/astropy,aleksandr-bakanov/astropy,stargaser/astropy,larrybradley/astropy,astropy/astropy,MSeifert04/astropy,lpsinger/astropy,saimn/astropy,dhomeier/astropy,mhvk/astropy,astropy/astropy,StuartLittlefair/astropy,mhvk/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,dhomeier/astropy,astropy/astropy,pllim/astropy,pllim/astropy,MSeifert04/astropy,larrybradley/astropy,mhvk/astropy,saimn/astropy,lpsinger/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,lpsinger/astropy,larrybradley/astropy,pllim/astropy,stargaser/astropy,dhomeier/astropy,lpsinger/astropy,StuartLittlefair/astropy,saimn/astropy,aleksandr-bakanov/astropy,mhvk/astropy,astropy/astropy,pllim/astropy,dhomeier/astropy,larrybradley/astropy,stargaser/astropy