**Do you want to request a *feature* or report a *bug*?**

Bug

**What is the current behavior?**

React Native for Web was broken by 16.5 as describe [here](https://github.com/necolas/react-native-web/issues/1096) due to this change https://github.com/facebook/react/pull/13539

**What is the expected behavior?**

Release a version of React that exports the EventPluginHub.

**Which versions of React, and which browser / OS are affected by this issue? Did this work in previous versions of React?**

Worked in 16.4
}
  this._didCommit = true;
  const callbacks = this._callbacks;
  if (callbacks === null) {
    return;
  }
  
  for (let i = 0; i < callbacks.length; i++) {
    const callback = callbacks[i];
    invariant(
      typeof callback === 'function',
      'Invalid argument passed as callback. Expected a function. Instead ' +
        'received: %s',
      callback,
    );
    callback();
  }
};
type Root = {
  render(children: ReactNodeList, callback: ?() => mixed): Work,
  unmount(callback: ?() => mixed): Work,
  legacy_renderSubtreeIntoContainer(
    parentComponent: ?React$Component<any, any>,
    children: ReactNodeList,
    callback: ?() => mixed,
  ): Work,
  createBatch(): Batch,
  _internalRoot: FiberRoot,
};
function ReactRoot(container: Container, isAsync: boolean, hydrate: boolean) {