Merge commit 'origin/mesa_7_7_branch'

Conflicts:
	src/gallium/drivers/svga/svga_screen_texture.c
	src/gallium/state_trackers/xorg/xorg_composite.c
	src/gallium/state_trackers/xorg/xorg_exa.c
	src/gallium/state_trackers/xorg/xorg_renderer.c
	src/gallium/state_trackers/xorg/xorg_xv.c
	src/mesa/main/texgetimage.c
	src/mesa/main/version.h