add changelog entry on constants version config
add changelog entry on constants version config

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