Add config.json default config option for "disable-tls" (FALSE by default)

tests/Composer/Test/DefaultConfigTest.php

@@ -0,0 +1,28 @@
+<?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\Test;
+
+use Composer\Config;
+
+class DefaultConfigTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @group TLS
+     */
+    public function testDefaultValuesAreAsExpected()
+    {
+        $config = new Config;
+        $this->assertFalse($config->get('disable-tls'));
+    }
+
+}