This update for gnome-boxes fixes the following issues:

- Disables smartcard support for gnome-boxes. (boo#952712)
- Store the user password in the keyring during an express
installation.
- Fix typo in debug string.
- Fix printf format strings.
- Only elevate privileges when doing an import and not at
startup.
- Fix non-matching generic types of inferface implementations.
- Work around a libvirt-glib bug to avoid a crash during
startup.
- Updated translations.