Color3DLUTTest: Fix potential error on wrong window size.

‘GetImage’ for comparison read back assumed the window size would not
change. As we use a GUI window, user could change size and cause error
abort. Originally this was triggered by a off-by-one size bug on Linux
with some WM.

Make Screen(‘GetImage’) read back size explicit, so we don’t error out,
but may report wrong precision. Not using onscreen windows for this
test would be even better, but meh…
Screen/Linux: Fix off-by-one error in window size query for kPsychGUIWindow's

PsychOSProcessEvents() recalculates window size from queried results on
kPsychGUIWindows to account for live resizing of the GUI window by the
user. On Linux it erroneously subtracted 1 from width and height, when
width and height was already correct, leading to some failure in some
tests, because all code suddenly assumed a 1 pixel smaller window.
Fixed in this commit.
PsychtoolboxKernelDriver: Rebuilt to incorporate AMD DCE-4+ bug fixes.

So it actually treats AMD's DCE-4 and later display engines right,
esp. wrt. 10 bpc framebuffers, identity lut's, pixel passthrough etc.

-> 64-Bit kernel driver for OSX 10.8+ rebuilt.

(cherry picked from commit 6732afbf7b0b6b9245bf8e8a1d6dd0a0f5e4f1ec)
Screen mex file for Linux and OSX rebuilt.

Rebuilt for 64-Bit Octave/Matlab on OSX.
Rebuilt for 32/64-Bit Octave and Matlab on Linux.

-> Incorporates all the AMD DCE-4+ display engine handling fixes.
-> Incorporates kPsychGUIWindow fix for Linux.
-> Built with 3.0.11 version info and behaviour.

=> Another v3.0.11 final update.

(cherry picked from commit 8ce5d206a5b255d3654c7b1562ce49c657624911)

Conflicts:
	Psychtoolbox/PsychBasic/Octave3LinuxFiles64/Screen.mex
	Psychtoolbox/PsychBasic/Octave3OSXFiles64/Screen.mex
	Psychtoolbox/PsychBasic/Screen.mexa64
	Psychtoolbox/PsychBasic/Screen.mexmaci64
Downloader/Updater/Setup/PostInstall: Drop 32-Bit Matlab support.

Add appropriate detection code and infos for users to tell them we
don’t do that 32-Bit Matlab thing anymore in 3.0.12+