title: What is proper way to create Evented Control in Leaflet?
body: <p>I need to create <code>L.Control</code> subclass which is <code>L.Evented</code> too.
  <code>include: [ L.Mixin.Events ]</code> works, but shows warning that it is deprecated and I need to inherit from <code>L.Evented</code>. But I can not as I need to inherit from <code>L.Control</code>.
  What do I suppose to do?</p>