title: How do I let the user swipe a CarouselPage when it contains a ListView?
body: <p>In my Xamarin.Forms app for Windows Phone 8.1, we have a number of pages that the user can swipe between using a <code>CarouselPage</code>.  One of these pages contains a <code>ListView</code> that fills the screen, and when that page selected the user can't swipe any more; the action is interpreted by the list view as a tap in one of its cells.  What can I do so that horizontal swipes will still change page in the carousel?  I still want vertical swipes to scroll the list view.</p>