add 192.168.124.10 entry to /etc/hosts
add OVF file for admin appliance

This was generated manually in VirtualBox and then exported as OVF.
add metadata.json
metadata.json: change vdisk size to 16GB
import Vagrantfile created via `vagrant package`
automate building of boxes from vmdk built by kiwi
initial stab at a multi-VM Vagrantfile for the whole cloud
add box catalog metadata JSON document

This is as described at http://docs.vagrantup.com/v2/boxes/format.html
and allows us to `vagrant box add cloud-admin3.json` and get the box
with the right version number.
disable default synced folder
WIP idea for how to add data disks