title: Scaled Image actor in Table Layout doesn't expand cell
body: <p>Sorry for the dense title :)</p>
  
  <p>Say I have an Image Actor created like so:</p>
  
  <pre><code>Image image = new Image(texture);
  image.setScale(2);
  </code></pre>
  
  <p>adding it to a Table works, and shows properly, but the scaling of the image doesn't expand the size of the table.</p>
  
  <pre><code>table.add(image);
  table.add(anotherimage);
  //these images are now overlapping because 'image' is too large for its cell
  </code></pre>
  
  <p>Is this a known issue, and is there any way to solve this?</p>