title: Removing object from scene in javafx
body: <p>I am digging the documentation to see if there's a remove method, I just get this link whenever I google 
  <a href="http://www.coderanch.com/t/580998/JavaFX/java/remove-node" rel="nofollow">http://www.coderanch.com/t/580998/JavaFX/java/remove-node</a></p>
  
  <p>there's a simple remove option 
  Eg : .getChildren().remove(object)</p>
  
  <p>It does not seem to work for me !</p>