add tests for prior versions
add tests for prior versions

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