AFNetworking/AFNetworking — pull request #1683 by MarcusFredriksson (2013-12-10 20:43:37+00:00)
Title: Class level setter for default image response serializer

Possibility to set class level default image response serializer.

The idea is that you can set a default image response serializer for all UIImageViews, it can be useful if you need to scale all images using URL parameter or do some filters on images.