title: TinyMCE 4 links plugin modal in not editable
body: <p>I am using tinyMCE4 editor inside a Boostrap modal dialog. when I clicked on link icon it opens a new modal dialog box, It displayed fine but the input areas are not editable.</p>
  
  <pre><code>&lt;div id="editing" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"&gt;
      &lt;form&gt;
      &lt;label&gt;
        &lt;span&gt;Description&lt;/span&gt;
        &lt;div id="description"&gt;&lt;/div&gt;
      &lt;/label&gt;
       &lt;form&gt;
   &lt;/div&gt;
  
    &lt;script&gt;
      tinymce.init({
      selector: 'div#description',
      inline: false,
      theme : "modern",
      schema: "html5",
      add_unload_trigger: false,
      statusbar: false,
      plugins: "link",
      toolbar: "link | undo redo",
      menubar: false
   });
      &lt;/script&gt;
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/9dcra.png" alt="enter image description here"></p>
  
  <p>Any suggestions </p>
  
  <p>Thanks in advance</p>