Bumping version to 2.0.4
Bumping version to 2.0.4

ashfurrow/AFNetworkActivityLogger,bespider/AFNetworkActivityLogger,AFNetworking/AFNetworkActivityLogger,Kingside/AFNetworkActivityLogger,rbaumbach/AFNetworkActivityLogger,adriantofan/ATNetworkActivityLoggerLumberJack,zhaihm/AFNetworkActivityLogger,Rich86man/AFNetworkActivityLogger