fyi, I've just added a new page [1] to the website describing how Isis reads its configuration files (isis.properties and any supplementary config files).
You'll also see that I've updated the quickstart example app (wicket_restful_jdo) so that wicket and restfulobjects-specific configuration live in their own supplementary config files (similar to persistor_datanucleus). This is described further on [1]. Dan [1] http://isis.apache.org/core/configuration-files.html
