title: Share an object between QML files
body: <p>I'm new to coding in QML and I'm trying to write my first Sailfish OS app. For the backend I have created one C++ class. However, I want to instantiate one object of that C++ class and use it both in the Cover and the main Page (two separate QML files), so I can work with the same data, stored in that class. How do address that same object in the separate QML files?</p>