react-events.js
function(target, ev, callback, context) {
            var data = ev ? {
                event: ev,
                callback: callback,
                target: target,
                context: context
            } : target;
            manageEvent.call(this, 'on', data);
        }
function(target, ev, callback, context) {
            var data = ev ? {
                event: ev,
                callback: callback,
                target: target,
                context: context
            } : target;
            manageEvent.call(this, 'on', data);
        }
{event, callback, context, model}