title: Minimize to tray with SWT
body: <p>I'm trying to make a SWT-app that I'm building to minimize itself to it's tray-icon (i.e. a TrayItem in SWT). More specifically I want to achieve the following:</p>
  
  <ul>
  <li>Both pressing close and minimize will minimize the app.</li>
  <li>The app is not shown in the task-bar while it's minimized.</li>
  </ul>