- Lights in client are now created with no owner (as in server).
- Minor fix in ResourcesSynchronizationLibrary::processCommand() method code: if a light creation request command is processed, a response is sent ONLY IF the user which sent the request still exists in the system.
- Added a method Scene::initEmptyScene() which is only called when no server file is loaded.
- Added an attribute ResourceIDsGeneratorPtr to Scene class.