Started the creation of the tutorial, created PocketReaderFirstLaunchBackgroundView class to implement drawRect method to paint the background of the tutorial. Created PocketReaderFirstLaunchViewController to later add the first launch tutorial here. On PocketReaderConfigViewController: added setters to the view match the data. On ViewController.mm: added checker to see if it is the first time of the opening of the app.
Merge remote-tracking branch 'PocketReader/master' into cleanedAndCropped