title: JavaFX - bind property to properties of every element in observable Collection
body: <p>Does exist any method which bind BooleanProperty to conjunction of every element in ObservableList?</p>
  
  <pre><code>ObservableList&lt;BooleanProperty&gt; list;
  list = FXCollections.observableList(new ArrayList&lt;BooleanProperty&gt;));
  BooleanProperty emptyProperty = new SimpleBooleanProperty();
  emptyProperty.bind(Bindings.conunction(list));`
  </code></pre>
  
  <p>Is there such a method as:</p>
  
  <pre><code>static BooleanBinding conjunction(ObservableList&lt;BooleanProperty&gt; op)
  </code></pre>