The service registry now supports auto starting and activation of services.

Each service can install a desktop file that defines if it wants to be started automatically (when the registry starts) or on demand (activation).

Now to test stuff like KMetaData it is not necessary to manually start anything anymore since the registry is started using DBus activation and the RDF repository using the new KNepomuk activation (yes, I know, reimplementing another activation seems strange but I need to stay compatible to the Nepomuk architecture.)