Merge commit 'origin/gallium-0.1' into gallium-0.2

Conflicts:

	src/gallium/auxiliary/gallivm/instructionssoa.cpp
	src/gallium/auxiliary/gallivm/soabuiltins.c
	src/gallium/auxiliary/rtasm/rtasm_x86sse.c
	src/gallium/auxiliary/rtasm/rtasm_x86sse.h
	src/mesa/main/texenvprogram.c
	src/mesa/shader/arbprogparse.c
	src/mesa/shader/prog_statevars.c
	src/mesa/state_tracker/st_draw.c
	src/mesa/vbo/vbo_exec_draw.c