Limit numpy version in 32bit test to work around #9059 [skip travis]
Limit numpy version in 32bit test to work around #9059 [skip travis]

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