Javadoc
Allows registration of configuration settings (config items) from outside the
Server Configuration Service and the standard set of properties files which
will be loaded early on the configuration cycle
NOTE: the implemented ConfigurationProvider MUST be a Spring singleton and it
MUST be registered in the main Sakai application context from a component (from a webapp will not work),
it also must be set explicitly to not lazy initialize (lazy-init="false"),
it is always possible to update the configuration later using
#registerConfigItems(ConfigData)so this is mainly for loading configurations very early in the system startup