title: How to properly turn the page of a UIPageViewController from a DataViewController?
body: <p>I want to be able to turn my UIPageViewController as a result of an event on a particular page.  Using the Page View template in Xcode, what is the proper way to achieve this?  I was thinking of just having DataViewController and ModelController contain a reference to the UIPageViewController in RootViewController and then use the [(UIPageViewController *) setViewControllers] method, but that seems sloppy.  Is there a better way to do this?</p>