Bootstrapping ubuntu with AWS auto scaling group - omnibus update

Hi all,
My much treasured ubuntu user-data auto scaling script (based on a script
provided on this list) died last night with dependency issues with net-ssh.
I have modified it to use the Chef omnibus method and the result is now
here should you need it.

http://www.trailhunger.com/blog/technical/2013/02/08/keeping-an-amazon-elastic-compute-cloud-ec2-instance-up-with-chef-and-auto-scaling-omnibus-update/

Cheers,
Edward