Switch over to using binary packages to speed up build
Install all packages in one invocation
Add more ports to the REFUSE
Install dependencies from binary packages
Virtio is now part of the FreeBSD base kernel
Remove call to freebsd-update
Fix package names
Squash into other virtio commit
Building virtualbox-ose-additions requires /usr/src

So we'll just install from the binary.
Add wait before fetch command
Fix comment
Wait more
Package of guest additions requires xorg-server - which is not available

As a binary package