merge xf86-video-ark 0.7.6, xf86-video-s3virge 1.11.1,
xf86-video-trident 1.4.0, and xf86-video-vmware 13.4.0.

initial import of xf86-video-ark-0.7.6

mibstore.h and its miInitializeBackingStore() have been otherwise empty
since at least xorg-server 1.10. remove all reference to them as the
header is gone in xorg-server 1.18.

initial import of xf86-video-ark-0.7.5

initial import of xf86-video-ark-0.7.3

initial import of xf86-video-ark-0.7.2

initial import of xf86-video-ark-0.7.1

initial import of xf86-video-ark-0.6.0