AFNetworking/AFNetworking — pull request #1250 by rbpasker (2013-08-24 13:24:29+00:00)
Title: Add convenience method for converting NSData to base-64 encoding.

Although not required for AFNetworking, there are so many web services
that embed binary data (like images) using base-64 encoding that adding
this method to AFNetworking makes sense, especially since its a trivial
change.