Autoplay behaviour is not synchronized

If a carousel has `autoPlay` and `sync` enabled hovering over the synchronized carousel as well as clicking on it does not stop autoplay. See [this codepen](https://codepen.io/anon/pen/BEzymw) for an example.

Is it possible to "synchronize" the `autoPlay` behaviour somehow? Or which events should we listen to to be able to disable autoplay of the "main" carousel?

Start with the linked CodePen reproduction and inspect how the synchronized carousel responds to hover and click events when autoPlay is enabled. Done means those interactions also stop autoplay on the main carousel, with the expected behavior verified against the reproduction.

Written by the indexing model from the issue text.