Refresh kohana from upstream svn trunk r3771.

During this process, remove a considerable number of files from kohana
that we will not be needing in Gallery3, including the following files
and directories:
    kohana/application
    kohana/example.htaccess
    kohana/index.php
    kohana/install.php
    kohana/kohana.png
    kohana/modules/archive
    kohana/modules/auth
    kohana/modules/flot
    kohana/modules/gmaps
    kohana/modules/kodoc
    kohana/modules/payment
    kohana/modules/smarty
    kohana/modules/unit_test/i18n
    kohana/modules/unit_test/tests/Example_Test.php
    kohana/modules/unit_test/tests/Valid_Test.php
    kohana/system/config/captcha.php
    kohana/system/controllers/captcha.php
    kohana/system/fonts
    kohana/system/i18n
    kohana/system/libraries/Calendar.php
    kohana/system/libraries/Calendar_Event.php
    kohana/system/libraries/Captcha.php
    kohana/system/libraries/Tagcloud.php
    kohana/system/vendor
    kohana/system/views/pagination
    kohana/system/views/kohana_calendar.php

1 files changed, 28 insertions, 0 deletions

diff --git a/kohana/core/utf8/stristr.php b/kohana/core/utf8/stristr.php
new file mode 100644
index 00000000..73ea1394
--- /dev/null
+++ b/kohana/core/utf8/stristr.php
@@ -0,0 +1,28 @@
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * utf8::stristr
+ *
+ * @package    Core
+ * @author     Kohana Team
+ * @copyright  (c) 2007 Kohana Team
+ * @copyright  (c) 2005 Harry Fuecks
+ * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
+ */
+function _stristr($str, $search)
+{
+	if (utf8::is_ascii($str) AND utf8::is_ascii($search))
+		return stristr($str, $search);
+
+	if ($search == '')
+		return $str;
+
+	$str_lower = utf8::strtolower($str);
+	$search_lower = utf8::strtolower($search);
+
+	preg_match('/^(.*?)'.preg_quote($search, '/').'/s', $str_lower, $matches);
+
+	if (isset($matches[1]))
+		return substr($str, strlen($matches[1]));
+
+	return FALSE;
+}
\ No newline at end of file