Do the /etc/host creation with vagrant, so it uses internal instead of
external ips (hostmanager only knew about the public ip)
Ignore errors on docker failure when 'restarting' docker in flannel
handler. If this is a clean install, we haven't run 'node' yet so docker
isn't installed so it doesn't need to be started. It would be better to
be more specific in ignoring errors though...
Eric Paris