Added changelog entry.
Added changelog entry.

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