 
     public func showMainScreen(user: User, responseConfig: ResponseConfig) {
         Tracker.sharedTracker.identify(user)
+
         var vc = ElloTabBarController.instantiateFromStoryboard()
         vc.setProfileData(user, responseConfig: responseConfig)
         self.swapViewController(vc) {

        }
    }

// Show New Screen

    public func swapViewController(newViewController: UIViewController, completion: ElloEmptyCompletion? = nil) {
        newViewController.view.alpha = 0

        visibleViewController?.willMoveToParentViewController(nil)
        newViewController.willMoveToParentViewController(self)

        self.prepareToShowViewController(newViewController)

        UIView.animateWithDuration(0.2, animations: {
            self.visibleViewController?.view.alpha = 0
