[ticket/12941] Add sami.conf.php for Travis CI.

PHPBB3-12941

travis/sami.conf.php

@@ -0,0 +1,19 @@
+<?php
+/**
+*
+* This file is part of the phpBB Forum Software package.
+*
+* @copyright (c) phpBB Limited <https://www.phpbb.com>
+* @license GNU General Public License, version 2 (GPL-2.0)
+*
+* For full copyright and license information, please see
+* the docs/CREDITS.txt file.
+*
+*/
+
+require __DIR__ . '/../build/' . basename(__FILE__);
+
+// Removing the versions array key will make Sami use the current branch.
+unset($config['versions']);
+
+return new Sami\Sami($iterator, $config);