 fileprivate extension UIView {
     
     enum Anchor {
-        case Top
-        case Bottom
+        case top
+        case bottom
     }
     
     func attach(anchor: Anchor, to view: UIView) {

        if #available(iOS 9, *) {
            
            switch anchor {
            case .Top:
                topAnchor.constraint(equalTo: view.topAnchor).isActive = true
            case .Bottom:
                bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
            }
            

            return
        }
        
        rootViewControllerView.attach(anchor: .top, to: view)
        
        consoleViewController.view.attach(anchor: .bottom, to: view)
        consoleViewHeightConstraint?.isActive = true
        
        if #available(iOS 9, *) {
