Flight 4 is out

[Nicolò Chieffo]

some other bugs found in my ASUS M6Ne:

- in gnome-power-manager "put display to sleep after: N" is not working.
- when unpluggingc AC there are 2 battery icons one is the old one and
the other is the gnome-power-manager one.
- /etc/acpi/lid.sh and /etc/acpi/resume.sh are still using xscreensaver
- again power4gear hotkey is linked to /etc/acpi/lockbtn.sh. this is
not what the user wants
https://launchpad.net/distros/ubuntu/+source/acpi-support/+bug/23814!
anyway lockbtn.sh does not lock the screen