Dropping numpy 1.7 and 1.8 testing
Dropping numpy 1.7 and 1.8 testing

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