Added option to not use HAL, instead using command execution. This will

allow for portability to systems that don't have HAL installed.

At the moment the configuration for the command lines in the conf file
do not work.

data/oblogout.conf

@@ -1,3 +1,6 @@
+[settings]
+usehal = false
+
 [looks]
 opacity = 70
 bgcolor = black
@@ -13,3 +16,12 @@ logout = L
 lock = K
 hibernate = H
 
+[commands]
+shutdown = shutdown -h now
+reboot = reboot
+suspend = suspend
+hibernate = hibernate1
+safesuspend = safesuspend
+lock = gnome-screensaver-command -l
+switchuser = gdm-control --switch-user
+logout = openbox --exit