TST: Use matplotlib dev with numpy dev for cron [skip appveyor]
TST: Use matplotlib dev with numpy dev for cron [skip appveyor]

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