integration firebase messagging

iOSClient/AppDelegate.m

@@ -486,7 +486,6 @@
         NSLog(@"Receive Notification on Active state");
     }
     
-    
     // If you are receiving a notification message while your app is in the background,
     // this callback will not be fired till the user taps on the notification launching the application.
     // TODO: Handle data of notification
@@ -535,6 +534,7 @@
     // Note that this callback will be fired everytime a new token is generated, including the first
     // time. So if you need to retrieve the token as soon as it is available this is where that
     // should be done.
+    
     NSString *refreshedToken = [[FIRInstanceID instanceID] token];
     NSLog(@"InstanceID token: %@", refreshedToken);