title: Traverse knockout to root from outside view model hierarchy scope
body: <p>If I'm outside the context of a knockout object hierarchy (like in a globally referenced common class), is it possible to </p>
  
  <ol>
  <li>determine if an overall root view model exists (in other words, determine if applyBindings was called for the current view)?</li>
  <li>if it exists, locate the overall root view model of the view I'm currently on?</li>
  </ol>
  
  <p>Does anyone know of any utils or extensions that do this?</p>