Facebook iOS app gets a facelift, gives iPhone users a new navigation bar

It's iOS 7 release day, folks, and while we've told you about plenty of apps that have been updated to fit Apple's new aesthetic, we've got another for you. This time, it's Facebook, and instead of just giving its iOS app a fresh coat of paint, the team in Menlo Park has also delivered a new way to navigate its iPhone app. The upgrade brings an ever-present tabbed bar at the bottom of the screen that lets users seamlessly switch between News Feed, Requests, Messages, Notifications and More -- me...