Part of the Ghiraldi framework set of base plugins, this plugin is used as the basis for administrative interfaces in a ghiraldi app. By itself, it doesn't do much, but serves as a base for other administrative interfaces.
The ghiraldi role plugin is part of the ghiraldi base package of plugins.
The ghiraldi user plugin is part of the ghiraldi base package of plugins. It provides the generalized concept of a user, which can be built upon to provide a robust user type.
The plugin registry allows for the registration of plugins into a central store and provides access to plugin properties for other controllers. This is particularly useful for things like the admin core plugin, which uses the registry to build the admin views for controllers.