title: Clear selection when Select2 uses minimumInputLength
body: <p>I have a select input field that I am enhancing using Select2 jQuery plugin. I passed the minimumInputLength property to have the user type a few letters before populating matching items. However, I am not sure how a user can clear the selection, if required.</p>
  
  <p>I tried to pass the allowClear property, and while it does show an 'X', the button does not work and the selection remains.</p>
  
  <p>EDIT:</p>
  
  <pre><code>jsfiddle link: https://jsfiddle.net/8f1u48et/
  </code></pre>