title: Select2 deselect all values
body: <p>I want to deselect all values with one click without using each <code>id</code> seperately.</p>
  
  <p>I fiddled around for a while, but this deselect only first value. Any suggestions?</p>
  
  <p>This is how I try to deselect:</p>
  
  <pre><code>$( "#mybutton" ).click(function() {    
     $("select").select2('val', '')
  });
  </code></pre>
  
  <p><a href="http://jsfiddle.net/6hZFU/75/">http://jsfiddle.net/6hZFU/75/</a></p>