Allow custom SDWebImageDownloaderOperation to handle HTTP redirect
Allow custom SDWebImageDownloaderOperation to handle HTTP redirect

dreampiggy/SDWebImage,awkward/SDWebImage,iheartradio/SDWebImage,tualatrix/SDWebImage,dreampiggy/SDWebImage,zhang-yawei/SDWebImage,rs/SDWebImage,awkward/SDWebImage,Insfgg99x/SDWebImage,dreampiggy/SDWebImage,smule/SDWebImage,awkward/SDWebImage