title: Ion-slide-box with different slide heights
body: <p>I'm using <code>ion-slide-box</code>, but the issue is, my <code>ion-slide</code>s are not in the same height, So it sets all the <code>ion-slide</code>s to the size of heights one. Following is an example</p>
  
  <ul>
  <li>ion-slide 1 height 30px</li>
  <li>ion-slide 2 height 100px</li>
  </ul>
  
  <p>So, <code>ion-slide-box</code> height will be 100px, which make a blank space (70px) in the slide1. And when the user slide by using that blank space (70px), <code>slider</code> doesn't work.</p>
  
  <p>What could be the way/workaround to have the <code>slidebox</code> work for different slide heights?</p>