Log Message:
xfce4-power-manager: update to 1.6.5

Change log:

1.6.5
======
- Improve size of critical power level spin
- Correctly hide brightness label (Bug #14649)
- Replace GtkStock buttons
- Add icons to close and help buttons in prefs
- Translation Updates: Galician, Norwegian Bokmål, Portuguese (Brazil)

1.6.4
======
 - Make inhibition affect dimming and inactivity action (Bug #14687)
 - Add support of xfce4-screensaver
 - Disable trayicon when panel plugin is present (Bug #15682)
 - Translation Updates:
   Armenian (Armenia), Finnish, Galician, Lithuanian, Norwegian Bokmål,
   Ukrainian