icon: update app icon
- GNOME 3.32 redesign of app icons. See GNOME/Initiatives#2 (closed) for more info.
Here's the proposed icon for Passbook: http://jimmac.musichall.cz/stuff/icon-revolution/org.gnome.Passbook.svg
Here's the proposed icon for Passbook: http://jimmac.musichall.cz/stuff/icon-revolution/org.gnome.Passbook.svg