This update for gnome-shell and gnome-shell-extensions fixes the following issues:

- If the "Activities Overview" is active and "Applications List" is started, the
former was not being closed, incorrectly overlaying the latter. (bsc#1008539)
- The SUSE logo was not being displayed in the lock screen. (bsc#1007468)
- A problem when unpacking settings of the SLE Classic theme. (bsc#993341)
- Use DBUS to get the system hostname. (bsc#999592)

This update was imported from the SUSE:SLE-12-SP2:Update update project.