title: Disconnect Reflux listenTo method
body: <p>So, I have two stores. First pageStore serves business logic of specific page, and second globalStore logic of Android/iOS global events. 
  When user enters specific page React.componentDidMount calls</p>
  
  <pre><code>pageEntered: function () {
      this.listenTo(globalStore, this.locationUpdated);
  },
  </code></pre>
  
  <p>so from this my pageStore started to listen global storage for GPS updates. But is there any way to disconnect listenTo on React.componentWillUnmount ?</p>