* Add hydrate method
* Add hydrate to react-dom-tests.ts
* Fix whitespace
* Create shared interface for `render` and `hydrate`
* Add renderToNodeStream and renderToStaticNodeStream methods in ReactDomServer
* Add proper nodejs.readablestream
* Add react-dom v15 for backwards compatibility
* Add proper baseUrl for react-dom/v15
* Change react test _interval type to NodeJS.Timer
* Export the renderer interface
* Change react/v15 to use NodeJS.Timer