With a recent leak of BlackBerry 10.2, a BlackBerry user in Poland took the time to create a changelog listing some of the new features that apparently will be coming with the updated OS build. As you might already know, the BlackBerry 10.2 update brings support for some Android apps. It also improves 'system performance' and app support. With the update, BlackBerry Hub will allow you to determine which messages get priority treatment based...