[whatwg/dom] Event delegation via EventListenerOptions (#215)

Event delegation is a common feature of most framework's event handling libraries. It'd be rad if it was standard in DOM events.
 
``` js
obj.addEventListener('click', ..., { matches: ".foo" })
```

Things to figure out:

* How `event.target` and `event.currentTarget` should be behave in this case. And if there should be a third `event.delegateTarget`.
* How delegated event handlers would be invoked in respect to `bubbles: false` https://twitter.com/annevk/status/719534820569804800

-
CC: @annevk
References: #207 #208 

---
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/whatwg/dom/issues/215