* rkt achieved its mission creating the OCI standard,
pluggable runtimes, and prevented Docker world
domination. We can now proceed with disarmament
* Few, if any, developers still use rkt locally
* Add `scripts/libvirt create` subcommand for rkt setups
* Add --os-variant=generic to remove nag messages to specify
* Rename places QEMU/KVM VMs were called libvirt VMs
* Clusters which install to disk auto-update so this bump just
changes the "starting" version. Deployed alpha clusters should
already be using 1109.1.0.
* Examples which install CoreOS to disk should reference
a CoreOS install image from bootcfg assets to speed up
installs and improve the offline use-case
* Update scripts/get-coreos to download and verify the
CoreOS install image
