fully functional now.

Fix consolekit can-reboot property name.

earlier versions of devkit-power uses dash-dash property names
while newer version uses FirstLetterCaps.

in the command line for debugging output.

to use this feature use has to have the policy kit permission on
"org.freedesktop.devicekit.disks.drive-set-spindown"

Use gint instead of guint for the brightness level.

Brightness control now should be fully working, control of the lcd
backlight is done using xrandr by default but if this fails and if
HAL support is compiled then fallback, but still probably we need
to provide a key to force the power manager to use HAL when HAL
support is compiled because sometimes xrand reports that everything
is fine but it fails silently to change the brightness level, uhh
still too much suckiness in the backlight control on Linux.

notification, if server supports actions use them to show a
notification warning about the low power level if not use gtk.

Re-Enable suspend/hibernate/lid actions.

sure that xfpm is not inhibited in case of no urgent sleep request.

a big part of xfpm and its configuration settings are broken.

In this branch polkit is a new optional dependency, this is for
getting if the user is permitted to use org.freedesktop.Devicekit.Power
sleep interfaces, also by default the power manager will try to
manipulate the lcd brightness using xrandr (doesn't work yet),
HAL remains an optional dependency of fall back for the lcd
brightness and in case of mapping failure of keyboard sleep keys.

If HAL support is compiled but HAL is not running
or stopped, xfpm should in future commits be able to handle this.

Brightness fine tuning.

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