This PR completely removes the puppet/staging module dependancy
This will break things for anyone using deploy_module => 'staging', so a major version bump is proposed.
This PR adds a new parameter called 'systemd_module' which allows a user to choose which systemd module to use to manage the Confluence service. It defaults to 'camptocamp' and also supports 'eyp'.
Adds support for Amazon linux 2018. The default behavior attempts to use systemd and fails.
There is no issue associated with this PR