finish practicing with the storyboard challenge

* Add a Label to the storyboard - set its' initial state to hidden.
* Connect it to the storyboard and name it nameLabel.

When pressing the button a few things should occur. (Hint: each item
should be a different line of code)

* Unhide the nameLabel.

* Update the nameLabel's text to display the information in the
* nameTextField.

* Change the nameLabel's textColor to blue.

* Clear the nameTextField's text.