Updates chapter 8 final code to Xcode 5 and iOS 7.
Chapter 1: Renames Main.storyboard.
Chapter 2: Renames Main.storyboard.
Chapter 3: Renames Main.storyboard.
Chapter 4: Renames Main.storyboard.
Updates start code to Xcode 5 and iOS 7.
Chapter 6: Updates project and code to Xcode 5 and iOS 7.