support for node style callbacks
support for node style callbacks

Datahero/node-recurly,cloudcovermusic/node-recurly,cheesington/node-recurly,AirClass/node-recurly,cwhatley/node-recurly,MorbidAngel/node-recurly,AlexisReverte/node-recurly,umayr/recurly-js,robrighter/node-recurly,cgerrior/node-recurly,sescobb27/node-recurly,Growmies/node-recurly