<nav>
<a href="/demo/foo/firstView" be-selectable>My First View</a>
<a href="/demo/foo/secondView" be-selectable>My Second View</a>
</nav>
Adds class "selected" to anchor element when the current route matches the href.
Additional features:
- [x] Listen for client-side address changes.
- [x] Fire event when selected status changes.
- [ ] Configure class name.
- [ ] Allow for transform to be specified on host container.