Adding changelog [skip ci]
Adding changelog [skip ci]

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