Log Message:
Update to 1.20.1:

HiDPI: Load xsettings during initialization phase
Add HiDPI configuration in XSettings
Add support for HiDPI displays
plugins: G_GNUC_UNUSED in unused but needed variables
xsettings: drop CanChangeAccels which won’t work with GTK+3
msd-datetime-mechanism.c: Fix build warnings:
msd-mpris-manager.c: Fix build warning:
configure.ac: drop GLIB_VERSION_MAX_ALLOWED
Translations update