Wraps npm Enterprise's Ansible script in an npm module.
All Platforms:
You must have node.js 0.10.x installed on the server. There's great documentation here:
https://github.com/joyent/node/wiki/installing-node.js-via-package-manager
Centos:
For the one-step-installer, you must have RHEL EPEL installed:
http://www.rackspace.com/knowledge_center/article/installing-rhel-epel-repo-on-centos-5x-or-6x