title: Multidatespicker theme does not show up
body: <p>I can't seem to understand why the theme for my MultiDatesPicker is not showing up... can someone please point out what I am missing? </p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
      &lt;head&gt;
          &lt;meta http-equiv="Content-Type" content="text/html; charset=UTF-8"&gt;
          &lt;title&gt;MultiDatesPicker for jQuery UI&lt;/title&gt;
  
          &lt;script type="text/javascript" src="http://code.jquery.com/jquery-1.11.1.js"&gt;&lt;/script&gt;
          &lt;script type="text/javascript" src="jquery.ui.core.js"&gt;&lt;/script&gt;
          &lt;script type="text/javascript" src="jquery.ui.datepicker.js"&gt;&lt;/script&gt;
          &lt;script type="text/javascript" src="jquery-ui.multidatespicker.js"&gt;&lt;/script&gt;
  
      &lt;/head&gt;
      &lt;body&gt;
          &lt;div id="page"&gt;
              &lt;h1 id="mdp-title"&gt;MultiDatesPicker &lt;span class="mdp-version"&gt;&lt;/span&gt; for jQuery UI&lt;/h1&gt;
              &lt;tr&gt;
                  &lt;td&gt;Date:&lt;/td&gt;
                  &lt;td&gt;
                      &lt;li class='demo'&gt;
                          &lt;div class='box'&gt;
                              &lt;div id="date" class="datepicker" style="display:block;"&gt;&lt;/div&gt;
                          &lt;/div&gt;
                          &lt;script type="text/javascript"&gt;
                              $(document).ready(function(){
                              $("#date").multiDatesPicker();
                              });
                          &lt;/script&gt;
                      &lt;/li&gt;
                  &lt;/td&gt;
              &lt;/tr&gt;
          &lt;/div&gt;
      &lt;/body&gt;
  &lt;/html&gt; 
  </code></pre>
  
  <p>Here's a screenshot of what I'm seeing:
  <img src="https://i.imgur.com/OqcC6tt.png" alt="Screenshot"></p>