development: minor cleanup to TabBarController

Sources/iOS/BottomNavigationController.swift

@@ -30,7 +30,7 @@
 
 import UIKit
 
-public class BottomNavigationFadeAnimatedTransitioning : NSObject, UIViewControllerAnimatedTransitioning {
+public class BottomNavigationFadeAnimatedTransitioning: NSObject, UIViewControllerAnimatedTransitioning {
 	public func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
 		let fromView : UIView = transitionContext.view(forKey: UITransitionContextViewKey.from)!
 		let toView : UIView = transitionContext.view(forKey: UITransitionContextViewKey.to)!

Sources/iOS/NavigationController.swift

@@ -31,7 +31,7 @@
 import UIKit
 
 @IBDesignable
-open class NavigationController : UINavigationController, UIGestureRecognizerDelegate {
+open class NavigationController: UINavigationController, UIGestureRecognizerDelegate {
 	/**
      An initializer that initializes the object with a NSCoder object.
      - Parameter aDecoder: A NSCoder instance.

Sources/iOS/TabBarController.swift

@@ -30,24 +30,6 @@
 
 import UIKit
 
-//extension UIViewController {
-//    /**
-//     A convenience property that provides access to the TabBarController.
-//     This is the recommended method of accessing the TabBarController
-//     through child UIViewControllers.
-//     */
-//    public var tabBarController: TabBarController? {
-//        var viewController: UIViewController? = self
-//        while nil != viewController {
-//            if viewController is TabBarController {
-//                return viewController as? TabBarController
-//            }
-//            viewController = viewController?.parent
-//        }
-//        return nil
-//    }
-//}
-
 @objc(TabBarControllerDelegate)
 public protocol TabBarControllerDelegate: MaterialDelegate {