title: Select2 - only allow one selected AND disabled popup
body: <p>I'm using the select2 plugin with the property <code>maximumSelectionSize: 1</code>. After selecting 1, there is an event still on the form that allows the user to click on the outside of the box and a message will appear to say: "You can only select 1 item". </p>
  
  <p>I don't want this message at all. Is there a way I can ensure that this doesn't ever appear?</p>
  
  <p>EDIT - code posted on request: </p>
  
  <pre><code>$('.select2-select').select2({
      maximumSelectionSize: 1
  });
  </code></pre>
  
  <p>EDIT 2: aaand a fiddle: <a href="http://jsfiddle.net/s85k7tg7/" rel="noreferrer">http://jsfiddle.net/s85k7tg7/</a></p>