Add unit testing coverage for Laravel\HTML and improve setUp and tearDown for Form unit-test

Signed-off-by: crynobone <crynobone@gmail.com>

laravel/tests/cases/url.test.php

@@ -15,6 +15,7 @@ class URLTest extends PHPUnit_Framework_TestCase {
 		Router::$uses = array();
 		Router::$fallback = array();
 		Config::set('application.url', 'http://localhost');
+		Config::set('application.index', 'index.php');
 	}
 
 	/**