Updates handler to return full role list

This updates the handler to pull to full list of roles from the node and not just what is in the runlist. It filters out our namespaced roles before returning
Fixes tests to handle the new role list
Customizes the version number
Updates to use include? instead of regexp for performance
Bumps to a numeric version
Merge pull request #1 from Shopify/full_role_list

Allows full server role list to be sent to Datadog