Added Disk2DModel
Added Disk2DModel

lpsinger/astropy,joergdietrich/astropy,saimn/astropy,MSeifert04/astropy,astropy/astropy,AustereCuriosity/astropy,funbaker/astropy,mhvk/astropy,AustereCuriosity/astropy,dhomeier/astropy,tbabej/astropy,MSeifert04/astropy,funbaker/astropy,bsipocz/astropy,pllim/astropy,StuartLittlefair/astropy,kelle/astropy,lpsinger/astropy,saimn/astropy,DougBurke/astropy,pllim/astropy,tbabej/astropy,StuartLittlefair/astropy,kelle/astropy,lpsinger/astropy,joergdietrich/astropy,astropy/astropy,dhomeier/astropy,DougBurke/astropy,AustereCuriosity/astropy,stargaser/astropy,stargaser/astropy,mhvk/astropy,saimn/astropy,DougBurke/astropy,funbaker/astropy,astropy/astropy,kelle/astropy,aleksandr-bakanov/astropy,tbabej/astropy,larrybradley/astropy,larrybradley/astropy,aleksandr-bakanov/astropy,bsipocz/astropy,tbabej/astropy,astropy/astropy,pllim/astropy,larrybradley/astropy,StuartLittlefair/astropy,lpsinger/astropy,kelle/astropy,aleksandr-bakanov/astropy,AustereCuriosity/astropy,pllim/astropy,saimn/astropy,dhomeier/astropy,bsipocz/astropy,astropy/astropy,DougBurke/astropy,stargaser/astropy,stargaser/astropy,mhvk/astropy,kelle/astropy,larrybradley/astropy,tbabej/astropy,joergdietrich/astropy,StuartLittlefair/astropy,MSeifert04/astropy,MSeifert04/astropy,larrybradley/astropy,AustereCuriosity/astropy,bsipocz/astropy,dhomeier/astropy,lpsinger/astropy,mhvk/astropy,saimn/astropy,dhomeier/astropy,mhvk/astropy,funbaker/astropy,joergdietrich/astropy,aleksandr-bakanov/astropy,StuartLittlefair/astropy,joergdietrich/astropy,pllim/astropy