Rename some template functions internal terms

* credentials => user_org
* private => superuser

client/renderer/templates/25_exception_safe_private_functions.erb

@@ -6,7 +6,7 @@ CREATE OR REPLACE FUNCTION <%= DATASERVICES_CLIENT_SCHEMA %>._<%= name %>_except
 RETURNS <%= return_type %> AS $$
 DECLARE
   <%= return_declaration %>
-  <%= credentials_declaration %>
+  <%= user_org_declaration %>
   _returned_sqlstate TEXT;
   _message_text TEXT;
   _pg_exception_context TEXT;
@@ -22,7 +22,7 @@ BEGIN
 
 
   BEGIN
-    <% return_statement do %><%= DATASERVICES_CLIENT_SCHEMA %>._<%= name %>(<%= params(true).join(', ') %>)<% end %>
+    <% return_statement do %><%= DATASERVICES_CLIENT_SCHEMA %>._<%= name %>(<%= params(_with_user_org=true).join(', ') %>)<% end %>
   EXCEPTION
     WHEN OTHERS THEN
         GET STACKED DIAGNOSTICS _returned_sqlstate = RETURNED_SQLSTATE,