Doesn't support EventListener interface

[WickyNilliams]

An object that implements EventListener interface (https://developer.mozilla.org/en-US/docs/Web/API/EventListener) has a handleEvent method. e.g.:

var obj = {
  log : function(e) {
    console.log("event", e.type, "happened on", e.target);
  },
  handleEvent : function(e) { 
     this.log(e); 
  }
};

Notice that the this value in handleEvent is bound to the object itself. As obj implements the EventListener interface, it can be registered directly as an event listener:

document.addEventListener("click", obj, false);

It would be great if the EventListener interface was respected by delegate.js and worked as one would expect:

delegate(body).on("click", ".some-selector", obj);

[necolas]

Sounds good.