Add changelog entry.
Add changelog entry.

pllim/astropy,astropy/astropy,astropy/astropy,mhvk/astropy,saimn/astropy,larrybradley/astropy,pllim/astropy,mhvk/astropy,astropy/astropy,larrybradley/astropy,saimn/astropy,StuartLittlefair/astropy,mhvk/astropy,lpsinger/astropy,saimn/astropy,pllim/astropy,lpsinger/astropy,pllim/astropy,larrybradley/astropy,lpsinger/astropy,StuartLittlefair/astropy,lpsinger/astropy,astropy/astropy,saimn/astropy,pllim/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,lpsinger/astropy,StuartLittlefair/astropy,larrybradley/astropy,mhvk/astropy,saimn/astropy,mhvk/astropy,larrybradley/astropy,astropy/astropy