added empty configuration command and updated the application class to pull it in for display

src/Composer/Command/ConfigCommand.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Command;
+
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class ConfigCommand extends Command
+{
+    protected function configure()
+    {
+        $this
+            ->setName('config')
+            ->setDescription('Manage config settings')
+            ->setHelp(<<<EOT
+
+EOT
+            )
+        ;
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+    }
+}

src/Composer/Console/Application.php

@@ -155,6 +155,7 @@ class Application extends BaseApplication
     {
         $commands = parent::getDefaultCommands();
         $commands[] = new Command\AboutCommand();
+        $commands[] = new Command\ConfigCommand();
         $commands[] = new Command\DependsCommand();
         $commands[] = new Command\InitCommand();
         $commands[] = new Command\InstallCommand();