Fixed issue with websocket data callbacks not finding the class level on_data_callbacks
Fixed issue with websocket data callbacks not finding the class level on_data_callbacks

lifo/cramp,dhh/cramp,koudelka/cramp,whoward/cramp,dhh/cramp,matiasinsaurralde/cramp,whoward/cramp,rightscale/rightscale-cramp,matiasinsaurralde/cramp,koudelka/cramp,rightscale/rightscale-cramp,OSSystems/cramp,lifo/cramp