Undid some breaking changes.

refs 2567

org.fortiss.tooling.kernel/trunk/src/org/fortiss/tooling/kernel/ToolingKernelActivator.java

@@ -68,6 +68,7 @@ public class ToolingKernelActivator extends Plugin {
 		IPersistencyService.INSTANCE.toString();
 		IPrototypeService.INSTANCE.toString();
 		ITransformationService.INSTANCE.toString();
+		// ITutorialService.INSTANCE.toString();
 	}
 
 	/** {@inheritDoc} */