There are some updates to stage3 builds that I would like to make to improve our support of new hardware:

• Rebuild with debian-sources as default (see FL-7416) and updated linux-firmware (see FL-7413).
• Create a skylake build with gfxcard-intel-iris by default. Really, we should see what HW supports iris and make iris the default for these builds. This way, Iris users don't need to rebuild things.
• Add xrandr and xinput to the gnome build package set.