fixed some small bugs & added cocoaPod
fixed some small bugs & added cocoaPod

bronx/RKCarbonKit,troystump/CarbonKit,kosicki123/RKNewCarbonKit,mcconkiee/CarbonKit,ermalkaleci/CarbonKit,nhdang103/CarbonKit,TaemoonCho/CarbonKit,kosicki123/RKCarbonKit