Panasonic Let's Note laptop extras driver v0.94

I just applied the 2008-07-04 3:44:19 to 2.6.26-rc9 and it seems to work well for my Panasonic CF-74. It'll be wonderful to have this in the mainline kernel! (I won't need to add anything now. Yea!)

In userspace, note that this requires a change from the proc interface to sys for /etc/acpi/panabright.sh. In Ubuntu Hardy I also disabled /etc/acpi/mutebtn.sh (by setting the first line to "#!/bin/true") because there seems to be a mute toggle elsewhere and the two toggle events were canceling each other.

Thanks!

--kyler