Improvements

Normally, these changes don't affect existing installations. The main difference is that you can now change the default settings (defined in rsyslog::params) e.g. like this:

    class {'::rsyslog':
      log_group  => 'syslog-admin',
      perm_file  => '0640',
      perm_dir   => '0750',
    }

    class {'::rsyslog::client':
      ...
    }

If this change is accepted, it'll be also important to add this possibility in the README file.