This controls the HiDPI style window scaling factor. It defaults
to 0 which means that gnome-settings-daemon will calculate the
default based on the current monitor dpi.

This key overrides the automatic hiding of the Universal Access
status icon when no accessibility features are enabled.

https://bugzilla.gnome.org/show_bug.cgi?id=700602

We have Alt-F1 as a shortcut for opening the overview, but
for the reasons discussed in
https://bugzilla.gnome.org/show_bug.cgi?id=685974
it is a good idea to have an alternative that uses the Super
modifier, and goes well with Super-A. This patch adds Super-S.

GNOME Shell has a setting for application usage monitoring in its
schema, move it here to allow exposing the setting in the control
center.

https://bugzilla.gnome.org/show_bug.cgi?id=699715

https://bugzilla.gnome.org/show_bug.cgi?id=700154

Unrecognized providers do not go before the last item.

Signed-off-by: Gheyret Kenji <gheyret@gmail.com>