title: No EAAccessoryDidConnectNotification and EAAccessoryDidDisconnectNotification after connecting Lightning kBD or Smart KBD
body: <p>I could not get these two notifications <code>EAAccessoryDidConnectNotification</code> and <code>EAAccessoryDidDisconnectNotification</code> after connecting Lightning kBD or Smart KBD with my APP.
  But it worked on iOS9.3 with my code as below,</p>
  
  <pre><code>[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_accessoryDidConnect:) name:EAAccessoryDidConnectNotification object:nil];
  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_accessoryDidDisconnect:) name:EAAccessoryDidDisconnectNotification object:nil];
  [[EAAccessoryManager sharedAccessoryManager] registerForLocalNotifications];
  </code></pre>
  
  <p>What's the cause?</p>
  
  <p>P.S.: I got this following message in the logs. 
        Couldn't find the "<strong>com.apple.private.externalaccessory.showallaccessories</strong>" entitlement</p>