AFNetworking/AFNetworking — pull request #708 by Maxner (2012-12-31 16:23:21+00:00)
Title: Add tag and operation started block to AFURLConnectionOperation.

Tags are useful to keep track of different requests inside a NSOperationQueue. The requests started block is a handy replacement for the AFNetworkingOperationDidStartNotification as it is a lot easier to assign individual actions to each operation using a block rather than a NSNotification.