[media-libs/mesa] no longer needed
[x11-base/xorg-server] version bump to 1.13.3
[scripts] remove the "do-" prefix
[scripts] drop old fusion kernel bump script
[x11-drivers/*nvidia*] drop older ebuilds
[x11-drivers/*nvidia*] drop even more driver versions
[x11-drivers/nvidia-*] bump 304 branch to 304.84
[x11-drivers/nvidia-drivers] fix Manifest
[x11-drivers/nvidia-drivers] sync 304.84 ebuilds with Portage