xing/XNGAPIClient — pull request #46 by pietbrauer (2014-11-30 21:13:36+00:00)
Title: AFNetworking 2.0

This adds support for AFNetworking 2.0.

Current steps needed to get this merged:

- [ ] Test XAuth
- [ ] Add error handling for common errors [see previous implementation](https://github.com/pietbrauer/XNGAPIClient/blob/master/XNGAPIClient/XNGJSONRequestOperation.m#L33-L46)