title: Restrict dropPosotion before and after Kendo UI treeview
body: <p>When doing drag and drop in Kendo UI TreeView it has 3 positions namely "before", "over" and "after".</p>
  
  <blockquote>
    <p><a href="http://docs.kendoui.com/api/web/treeview#dragend" rel="nofollow">http://docs.kendoui.com/api/web/treeview#dragend</a></p>
  </blockquote>
  
  <p>Is it possible to restrict the "before" and "after" states and only allow drop "over" functionality.</p>
  
  <p><strong>Note</strong></p>
  
  <blockquote>
    <p><em>In my scenario I have 2 trees and I'm dragging element from left tree to the other.</em></p>
  </blockquote>