XviD-1.3.0 (CVS)-081129.05.22-VAQ beta

Initial SSE4 support;
Noexecstack patch;
NASM 2.x compatibility;
enable SSE4 GMC code;
encraw - fix for -ssim option;
more ssim fixes;
bugfix: prevent access violation if width/height is not multiple of 2;
Auto SMP;
Brightness control fix;
GUI controls for SSE3/SSE4;
Updated about box and messages;
add: alternative multicore detection;
pump up HEAD version numbers.