title: GXT ScrollBar overlapping content
body: <p><p>I'm using <code>setScrollMode(ScrollMode.AUTOY)</code> to enable vertical scrolling when necessary on a VerticalLayoutContainer. However, the scrollbar overlaps the content of the container. The only way around this that I've seen is to call <code>setAdjustForScroll(true)</code>. The problem with this is that The panel will then <em>always</em> reserve space for a scrollbar even when one is not present.</p><p>
  Is there a way to tell GXT to only adjust for a scrollbar when one is present? Or perhaps use an event handler (eg ResizeHandler) and check if the scrollbar is currently visible?</p></p>