added timeout and retry options, 10sec and 2 tries
added timeout and retry options, 10sec and 2 tries

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