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, 22 insertions, 0 deletions

diff --git a/kohana/core/utf8/substr_replace.php b/kohana/core/utf8/substr_replace.php
new file mode 100644
index 00000000..45e2d2a3
--- /dev/null
+++ b/kohana/core/utf8/substr_replace.php
@@ -0,0 +1,22 @@
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * utf8::substr_replace
+ *
+ * @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 _substr_replace($str, $replacement, $offset, $length = NULL)
+{
+	if (utf8::is_ascii($str))
+		return ($length === NULL) ? substr_replace($str, $replacement, $offset) : substr_replace($str, $replacement, $offset, $length);
+
+	$length = ($length === NULL) ? utf8::strlen($str) : (int) $length;
+	preg_match_all('/./us', $str, $str_array);
+	preg_match_all('/./us', $replacement, $replacement_array);
+
+	array_splice($str_array[0], $offset, $length, $replacement_array[0]);
+	return implode('', $str_array[0]);
+}
\ No newline at end of file