title: froala not showing some toolbar buttons
body: <p>Froala doesn't want show some buttons (like: video, image, table ...) and I don't now why. Maybe I just forget add some script?
  This My options:</p>
  
  <pre><code>    public tb = [
          "bold", "italic" , "insertTable","insertImage"]; 
   public options: Object = { 
    placeholderText: 'Edit Your Content Here!',
    toolbarInline: false,
    toolbarButtons: this.tb,
          toolbarButtonsMD: this.tb,
          toolbarButtonsSM: this.tb,
          toolbarButtonsXS: this.tb
  }
  </code></pre>
  
  <p>This My scripts:</p>
  
  <pre><code>&lt;script src="http://code.jquery.com/jquery-1.9.0.js"&gt;&lt;/script&gt;
    &lt;script src="http://code.jquery.com/jquery-migrate-1.2.1.js"&gt;&lt;/script&gt;
    &lt;script src="bower_components/froala-wysiwyg-editor/js/froala_editor.min.js"&gt;&lt;/script&gt;
  &lt;script src="bower_components/froala-wysiwyg-editor/js/plugins/image.min.js"&gt;&lt;/script&gt;
    &lt;script src="bower_components/froala-wysiwyg-editor/js/plugins/image_manager.min.js"&gt;&lt;/script&gt;
  &lt;script src="bower_components/froala-wysiwyg-editor/js/plugins/video.min.js"&gt;&lt;/script&gt;
  </code></pre>
  
  <p>And My client just show Bold and Italic, how can I fix it?</p>
  
  <p><a href="https://i.stack.imgur.com/FTWsM.png" rel="noreferrer"><img src="https://i.stack.imgur.com/FTWsM.png" alt="enter image description here"></a></p>