Expose dashboard::passenger params to dashboard

To treat the entire module like an API, this commit exposes the
dashboard_config and dashboard_root parameters (used in the
dashboard::passenger class) to the dashboard class and defaults
the values to those declared in the dashboard::params class.

manifests/init.pp

@@ -116,8 +116,10 @@ class dashboard (
     -> Class['dashboard::passenger']
 
     class { 'dashboard::passenger':
-      dashboard_site => $dashboard_site,
-      dashboard_port => $dashboard_port,
+      dashboard_site   => $dashboard_site,
+      dashboard_port   => $dashboard_port,
+      dashboard_config => $dashboard_config,
+      dashboard_root   => $dashboard_root,
     }
 
   } else {

manifests/passenger.pp

@@ -24,8 +24,8 @@
 class dashboard::passenger (
   $dashboard_site,
   $dashboard_port,
-  $dashboard_config = $dashboard::params::dashboard_config,
-  $dashboard_root   = $dashboard::params::dashboard_root,
+  $dashboard_config,
+  $dashboard_root
 ) inherits dashboard {
 
   include apache