Rebuild Screen for 32-Bit Octave on Linux for testing.

-> Confirms proper working of old-style override-redirect on KDE.
-> Confirms proper working of 10 bpc / 11 bpc framebuffer modes
   on AMD gpu's (DCE-1 "AVIVO" and DCE-4) both with our own setup
   code (mmio + shaders + lut's) and with Linux 3.16/ddx/mesa
   native 10 bpc support in DefaultDepth 24 and 30 modes.