title: Why Libgdx's Table does not accept scale action?
body: <p>I'm using scene2d in libgdx library for creating some UI in my game.</p>
  
  <p>I used a Table and I want to take some scaling action when user touches to make a button touching sense. </p>
  
  <p>When I used any other "Actor" types like Group and giving it a scale action it works but not Table.</p>
  
  <p>this is my Table definition:</p>
  
  <pre><code>Table table = new Table();
  table.setSize(width, height);
  table.setPosition(x, y);
  table.setOrigin(width/2, height/2);
  table.add(new Label(...));
  table.row();
  ...
  </code></pre>
  
  <p>And in my touchDown event I give it a scale action:</p>
  
  <pre><code>table.addAction(Actions.scaleTo(0.8f, 0.8f, 0.1f));
  </code></pre>
  
  <p>And in touchUp I give it another action to get original scale:</p>
  
  <pre><code>table.addAction(Actions.scaleTo(1f, 1f, 0.1f));
  </code></pre>
  
  <p>As I said this code works for another types of Actors like Image and Group.
  Any Ideas that why don't works for Table?</p>