title: Stop vis.js physics after nodes load but allow drag-able nodes
body: <p>I am trying to draw a vis.js network diagram and have vis load and position the nodes.  I then want the physics to be disabled so the nodes can be moved by the user.  I have tried this but it is not working.</p>
  
  <pre><code>var options = {
  
      nodes: {
        borderWidth:4,
        size:60,
        color: {
          border: '#222222',
          background: 'grey'
        },
        font:{color:'black'}
      },
      edges: {
        arrows: {
          to:     {enabled: false, scaleFactor:1},
          middle: {enabled: false, scaleFactor:1},
          from:   {enabled: false, scaleFactor:1}
        },
        color: 'black'
      },
  
      { physics: enabled: false; };
  </code></pre>
  
  <p>Has anyone done this? if so can you provide an example or advice on best way to accomplish this.  I have also read the explanation located <a href="https://github.com/almende/vis/issues/161" rel="noreferrer">here</a>, but not being too familiar with java I can't figure the steps out.</p>
  
  <p>Thanks</p>