They are only mirroring UpDeviceState and UpDeviceKind
from libupower-glib anyway.

Signed-off-by: Eric Koegel <eric.koegel@gmail.com>

* port most of the upower interfaces to upower-glib
* conditionalize stuff that has been deprecated in upower >= 0.99.0
* suspend / hibernate is handled by systemd/logind
* if upower is >= 0.99.0 and logind is not running, log errors
  (as functionality will be missing)

Signed-off-by: Eric Koegel <eric.koegel@gmail.com>

uses the disk service to spin down hard disks.

nothing seems to be changed between, just the D-Bus name and services, ouf!

Replace Information tray menu item by Power information, the new dialog in an external program, xfce4-power-information
will be able to show information about power devices+processor wakeups.

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.

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.

	Suspend instead of suspend (same for hibernate).
	* : Change the storage type of some variables used in xfpm-debug.c
	* : some optimization for const fuctions.
	* : use G_GNUC_NORETURN in the xfpm_start and the 
	xfpm_show_version functions.

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