Fixes #675 No disabled feature should log spam or crash anymore.

Deprecates the old usage of the AEItemDefinitions via the direct method access of

* blocks()
* parts()
* items()
* materials()

and thus use the new re-direct via definitions().

All definitions are now initialized, no matter what. But SubItems, Items and Blocks are not registered, if by chance are disabled.

src/main/java/appeng/core/AppEng.java

@@ -193,7 +193,7 @@ public class AppEng
 	}
 
 	@EventHandler
-	public void serverStarting( FMLServerAboutToStartEvent evt )
+	public void serverAboutToStart( FMLServerAboutToStartEvent evt )
 	{
 		WorldSettings.getInstance().init();
 	}