Update docs/modeling/changes_for_4.rst
Update docs/modeling/changes_for_4.rst
dhomeier/astropy,pllim/astropy,aleksandr-bakanov/astropy,bsipocz/astropy,stargaser/astropy,lpsinger/astropy,saimn/astropy,saimn/astropy,astropy/astropy,mhvk/astropy,lpsinger/astropy,astropy/astropy,pllim/astropy,astropy/astropy,pllim/astropy,MSeifert04/astropy,lpsinger/astropy,dhomeier/astropy,mhvk/astropy,larrybradley/astropy,larrybradley/astropy,lpsinger/astropy,stargaser/astropy,dhomeier/astropy,saimn/astropy,mhvk/astropy,mhvk/astropy,mhvk/astropy,astropy/astropy,StuartLittlefair/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,bsipocz/astropy,StuartLittlefair/astropy,astropy/astropy,stargaser/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,aleksandr-bakanov/astropy,MSeifert04/astropy,bsipocz/astropy,StuartLittlefair/astropy,MSeifert04/astropy,MSeifert04/astropy,dhomeier/astropy,pllim/astropy,stargaser/astropy,StuartLittlefair/astropy,StuartLittlefair/astropy,larrybradley/astropy,saimn/astropy,bsipocz/astropy,dhomeier/astropy,pllim/astropy,lpsinger/astropy,saimn/astropy