Lick vms in a random order, so we don't starve VMs at the end of the list from puppet upgrades
Force upgrade to cutting edge with a sed script, and don't prompt on autoremove
Remove call to post-update hook. It seems to be applied without the explicit call, albeit silently
Catch exception thrown if we can't log into a VM, as it might not be a monkeysphere VM
Changes for new puppet, new modules and new ubuntu
Merge puppy42.dtg.cl.cam.ac.uk:/etc/puppet