Property 'matches' does not exist on type 'Element'

Example: 

``` typescript
let node: Element = document.querySelector("mySelector");
node.matches("mySelector");
```

Raise the following error: `Property 'matches' does not exist on type 'Element'`
Defined in DOM Living Standard 
- https://developer.mozilla.org/en-US/docs/Web/API/Element/matches
- https://dom.spec.whatwg.org/#dom-element-matches
