title: Bootstrap-select jQuery plugin with Bootstrap 4 not working
body: <p>Why is <code>Bootstrap-select</code> not working properly with <code>Bootstrap 4</code>? <a href="https://jsfiddle.net/DataDriven_10/h6swtuo2/3/" rel="nofollow noreferrer">Here is the code</a>, 
  It is displaying the search input button and the options separately as two separate buttons.</p>
  
  <pre><code>&lt;select class="selectpicker" data-live-search="true"&gt;
    &lt;option data-tokens="ketchup mustard"&gt;Hot Dog, Fries and a Soda&lt;/option&gt;
    &lt;option data-tokens="mustard"&gt;Burger, Shake and a Smile&lt;/option&gt;
    &lt;option data-tokens="frosting"&gt;Sugar, Spice and all things nice&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>