Support 301/302 redirects.
Support 301/302 redirects.

gvanrossum/asyncio,jashandeep-sohi/asyncio,ajdavis/asyncio,vxgmichel/asyncio,1st1/asyncio,Martiusweb/asyncio,vxgmichel/asyncio,fallen/asyncio,1st1/asyncio,gsb-eng/asyncio,manipopopo/asyncio,Martiusweb/asyncio,ajdavis/asyncio,gsb-eng/asyncio,gvanrossum/asyncio,manipopopo/asyncio,Martiusweb/asyncio,ajdavis/asyncio,vxgmichel/asyncio,gsb-eng/asyncio,1st1/asyncio,jashandeep-sohi/asyncio,fallen/asyncio,gvanrossum/asyncio,fallen/asyncio,manipopopo/asyncio,haypo/trollius,jashandeep-sohi/asyncio,haypo/trollius,haypo/trollius