title: Catch Motion End event in Leaflet Motion Plugin
body: <p>I ma currently using leaflet, leaflet motion plugin for animating the polyline.</p>
  <p>Now I need to show a popup after the motion animation is completed.</p>
  <p>How can I catch the motion end event.</p>
  <p>From the docs, I can see L.Motion.Event.Ended event will be fired after the motion end.</p>
  <p>But I am unable to get this motion end event.</p>
  <p>Can anyone help in catching the motion end event in leaflet motion.</p>