AFNetworking/AFNetworking — pull request #153 by shanev (2011-12-16 23:08:35+00:00)
Title: Should check for NSJSON first, since it's the default iOS JSON library

When encoding and decoding JSON, we should check to see if NSJSONSerialization exists first since it's the default JSON library from iOS 5 and onwards. This will ensure that AFNetworking won't be effected by bugs in third party libraries, or bugs such as bug #152.