Add script to print out machines in each subnet
Update Berksfile and Gemfile deps
Fix instance creation script to use path to identity file and correctly set run list
Pull in gloto-chef-cookbook
Fix a rebase error
Copy encrypted data bag secret when bootstrapping
Configure sshd in base installs to allow pubkey authentication
Update git-server role

* Sets up LDAP authentication
* Installs git tools
* Mounts EBS volume
Small tweaks to create-server.rb script