title: Remove item from Select2 is not working
body: <p>I have a drop-down (select) to which I apply a <code>.select2()</code>. Now I'm trying to remove/add a option from the drop-down by mark/unmark a checkbox and it's not working. This is the HTML code:</p>
  
  <pre><code>&lt;input type="checkbox" value="1" class="lives_in_css" name="orders[lives_in_ccs]" id="orders_lives_in_ccs"&gt;
  
  &lt;select class="shipping_from form-control toSelect2 select2-offscreen" required="required" name="orders[shipping_from]" id="orders_shipping_from" tabindex="-1" title="" data-bv-field="orders[shipping_from]"&gt;
      &lt;option selected="selected" value=""&gt;-- SELECCIONAR --&lt;/option&gt;
      &lt;option value="MRW"&gt;MRW - COBRO EN DESTINO&lt;/option&gt;
      &lt;option value="DOMESA"&gt;DOMESA - COBRO EN DESTINO&lt;/option&gt;
      &lt;option value="ZOOM"&gt;GRUPO ZOOM - COBRO EN DESTINO&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>
  
  <p>And this is the jQuery code I made for this purpose:</p>
  
  <pre><code>$('.lives_in_ccs').click(function() {
      if (this.checked) {
          $(".shipping_from option[value='MRW']").remove();
          $(".shipping_from").select2("val", "DOMESA");
      } else {
          $(".shipping_from").prepend('&lt;option value="MRW"&gt;MRW - COBRO EN DESTINO&lt;/option&gt;');
          $(".shipping_from").select2("val", "MRW");
      }
  
      console.log(this.checked);
  
      $(".secure_shipping").toggle(this.checked);
  });
  </code></pre>
  
  <p>What's wrong in my code? <a href="http://jsfiddle.net/jLto9nnv/" rel="nofollow">Here</a> is jsFiddle to play with</p>