ScreenSaver: tabs hug window boundary

Taking a page from HaikuDepot's book, remove the border from the tab
view and set the inset to 0 in order to position the tabview right on
the window's edge. Looks a bit better than the previous method since
the tabview border appeared to extend the thickness of the window
border.
radeon_hd: Add PCIID for another REDWOOD card.

* Resovles #9993
usb_disk: base the error sense handling on a reference table.

* imported asc-num.txt as a reference, was used to generate the asc sense table.
* use the sense asc and key tables to know which action and status codes are
to be applied.
* tested with an hard disk and a dvd reader.
* these tables could be reused by the scsi_periph module.
Update translations from Pootle
x86[_64]: Randomize initial stack pointer on alternative signal stacks

If the alternate signal stack is used randomize the initial stack
pointer in the same way it is randomized on "normal" thread stacks.
Also, update MINSIGSTKSZ value so that regardless of where the new
stack pointer points to there is at least 4k of stack left.
ps2: added initial support for elantech pads.

* also added a license to ps2_alps.h
* added ps2_dev_sliced_command()
* moved some ps2 commands definitions to ps2_defs.h
Some places where to find OpenFirmware specs...