Added subtle changes to autoreleasing and house-keeping.
Merge branch 'master' of https://github.com/jfuellert/AFFNetworking

Conflicts:
	AFFNetworking/AFFNetworking/AFFNRequest.m
Merge branch 'master' of https://github.com/jfuellert/AFFNetworking

Conflicts:
	AFFNetworking/AFFNetworking/AFFNCallbackObject.m
	AFFNetworking/AFFNetworking/AFFNRequest.m