title: Draw a binary tree
body: <p>I'm looking for a js lib which allows the user to draw a binary tree : add/remove a leaf, add/remove a parent node, etc.</p>
  
  <p>I've found many libs but most of them are made for data visualization only (eg: d3), not drawing from the browser.</p>
  
  <p>Does this even exist ?</p>
  
  <p>Thanks!</p>