Finer progress bar updates when initializing nodes

The bar is only drawn when the user will notice a change, which prevents time overheads that this commit would cause, resulting from useless draws.

src/game.cpp

@@ -1998,7 +1998,7 @@ bool Game::createClient(const std::string &playername,
 	}
 
 	// Update cached textures, meshes and materials
-	client->afterContentReceived(device, g_fontengine->getFont());
+	client->afterContentReceived(device);
 
 	/* Camera
 	 */