title: cannot convert AnyHashable in swift 3
body: <p>I have following method, which written in swift (before swift 3). below is the method</p>
  
  <pre><code>func application(application: UIApplication, didReceiveRemoteNotification launchOptions: [AnyHashable: Any]) -&gt; Void {
      Branch.getInstance().handlePushNotification(launchOptions)
  }
  </code></pre>
  
  <p>it gives and error of <code>Use of undeclared type AnyHashable</code>. how can I covert this to swift 3. I tried with following.</p>
  
  <pre><code> func application(application: UIApplication, didReceiveRemoteNotification launchOptions: [NSObject : AnyObject]) -&gt; Void {
          Branch.getInstance().handlePushNotification(launchOptions)
      }
  </code></pre>
  
  <p>it removes the error, but don't know it act like same way. hope your help with this. thanx in advance.</p>