Fix xsettings/power tests on recent systems
There seems to be slight "incompatibilities" in gnome-session and... glib? To make tests succeed on a recent jhbuild system, I needed to:
- Spawn logind mock in xsettings tests (required indirectly by gnome-session)
- Adjust regular expressions in power tests (differences in output format)
Closes: #445 (closed)
Edited by Carlos Garnacho