title: CaptionPanel -> CaptionLayoutPanel
body: <p>I want to use the CaptionPanel inside a Layout Panel (DockLayoutPanel) .</p>
  
  <p>The problem is that there is no CaptionLayoutPanel(like SimpleLayoutPanel) implementation and therefore if I want to use
  this panel inside a Layout Panel, all childs will loose the resize events because the "resize-chain" is broken through  the CaptionPanel.</p>
  
  <p>Is there any workaround?</p>