title: Show leaflet tooltip on hover only when popup is not being shown
body: <p>I have a tooltip with a short text only description and a popup with a longer formatted description bound to a marker on a leaflet map.</p>
  
  <p>The tooltip shows on hover and the popup shows when you click on the place marker. When the larger popup is visible there is no need to show the tooltip. Can I disable the tooltip when the popup is visible and how do I do this?</p>
  
  <p>Here is the code I have so far:</p>
  
  <pre><code>var marker = L.marker(location);
  marker.bindPopup("Long description with extra formatting ...");
  marker.bindTooltip("Short description");
  </code></pre>