Fix that iOS 8 NSURLSessionTaskPriorityHigh symbol not defined in Foundation framework and cause crash
Fix that iOS 8 NSURLSessionTaskPriorityHigh symbol not defined in Foundation framework and cause crash

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