Refactoring AFURLSessionManager task creation APIs to eschew success/failure distinction in order to better-align existing task interface.
[Issue #1259] Redefining AFHTTPClient serializer @properties to explicitly be AFHTTPSerializer, for API convenience.
Changing response serializer property APIs to be consistent with AFHTTPClient
Adding UIAlertView+AFNetworking category
Removing AVFoundation #import from UIButton+AFNetworking
Swizzling observeValueForKeyPath:ofObject:change:context: to preserve existing implementation
[Issue #1254] Refactoring UIActivityIndicatorView+AFNetworking, checking the remaining criteria for the implementation