Squashed 'AFNetworking/' changes from 8d5bcce..847b49e

847b49e experimental commit

git-subtree-dir: AFNetworking
git-subtree-split: 847b49ee7bec330f74f49d472f490a05ad218960
Merge commit '805f9835a2f6ba38189fa209d77a3e2b6470985b'

Conflicts:
	AFNetworking/AFNetworking/AFHTTPSessionManager.m