diff --git a/externals/phpqrcode/LICENSE b/externals/phpqrcode/LICENSE
new file mode 100644
--- /dev/null
+++ b/externals/phpqrcode/LICENSE
@@ -0,0 +1,165 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
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+
+
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diff --git a/externals/phpqrcode/README b/externals/phpqrcode/README
new file mode 100644
--- /dev/null
+++ b/externals/phpqrcode/README
@@ -0,0 +1,45 @@
+This is PHP implementation of QR Code 2-D barcode generator. It is pure-php
+LGPL-licensed implementation based on C libqrencode by Kentaro Fukuchi.
+
+== LICENSING ==
+
+Copyright (C) 2010 by Dominik Dzienia
+
+This library is free software; you can redistribute it and/or modify it under
+the terms of the GNU Lesser General Public License as published by the Free
+Software Foundation; either version 3 of the License, or any later version.
+
+This library is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+PARTICULAR PURPOSE. See the GNU Lesser General Public License (LICENSE file)
+for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this library; if not, write to the Free Software Foundation, Inc., 51
+Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+== INSTALATION AND USAGE ==
+
+ * INSTALL file
+ * http://sourceforge.net/apps/mediawiki/phpqrcode/index.php?title=Main_Page
+
+== CONTACT ==
+
+Fell free to contact me via e-mail (deltalab at poczta dot fm) or using
+folowing project pages:
+
+ * http://sourceforge.net/projects/phpqrcode/
+ * http://phpqrcode.sourceforge.net/
+
+== ACKNOWLEDGMENTS ==
+
+Based on C libqrencode library (ver. 3.1.1)
+Copyright (C) 2006-2010 by Kentaro Fukuchi
+http://megaui.net/fukuchi/works/qrencode/index.en.html
+
+QR Code is registered trademarks of DENSO WAVE INCORPORATED in JAPAN and other
+countries.
+
+Reed-Solomon code encoder is written by Phil Karn, KA9Q.
+Copyright (C) 2002, 2003, 2004, 2006 Phil Karn, KA9Q
+
\ No newline at end of file
diff --git a/externals/phpqrcode/VERSION b/externals/phpqrcode/VERSION
new file mode 100644
--- /dev/null
+++ b/externals/phpqrcode/VERSION
@@ -0,0 +1,2 @@
+1.1.4
+2010100721
\ No newline at end of file
diff --git a/externals/phpqrcode/phpqrcode.php b/externals/phpqrcode/phpqrcode.php
new file mode 100644
--- /dev/null
+++ b/externals/phpqrcode/phpqrcode.php
@@ -0,0 +1,3312 @@
+
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+
+
+/*
+ * Version: 1.1.4
+ * Build: 2010100721
+ */
+
+
+
+//---- qrconst.php -----------------------------
+
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Common constants
+ *
+ * Based on libqrencode C library distributed under LGPL 2.1
+ * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+ // Encoding modes
+
+ define('QR_MODE_NUL', -1);
+ define('QR_MODE_NUM', 0);
+ define('QR_MODE_AN', 1);
+ define('QR_MODE_8', 2);
+ define('QR_MODE_KANJI', 3);
+ define('QR_MODE_STRUCTURE', 4);
+
+ // Levels of error correction.
+
+ define('QR_ECLEVEL_L', 0);
+ define('QR_ECLEVEL_M', 1);
+ define('QR_ECLEVEL_Q', 2);
+ define('QR_ECLEVEL_H', 3);
+
+ // Supported output formats
+
+ define('QR_FORMAT_TEXT', 0);
+ define('QR_FORMAT_PNG', 1);
+
+ class qrstr {
+ public static function set(&$srctab, $x, $y, $repl, $replLen = false) {
+ $srctab[$y] = substr_replace($srctab[$y], ($replLen !== false)?substr($repl,0,$replLen):$repl, $x, ($replLen !== false)?$replLen:strlen($repl));
+ }
+ }
+
+
+
+//---- merged_config.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Config file, tuned-up for merged verion
+ */
+
+ define('QR_CACHEABLE', false); // use cache - more disk reads but less CPU power, masks and format templates are stored there
+ define('QR_CACHE_DIR', false); // used when QR_CACHEABLE === true
+ define('QR_LOG_DIR', false); // default error logs dir
+
+ define('QR_FIND_BEST_MASK', true); // if true, estimates best mask (spec. default, but extremally slow; set to false to significant performance boost but (propably) worst quality code
+ define('QR_FIND_FROM_RANDOM', 2); // if false, checks all masks available, otherwise value tells count of masks need to be checked, mask id are got randomly
+ define('QR_DEFAULT_MASK', 2); // when QR_FIND_BEST_MASK === false
+
+ define('QR_PNG_MAXIMUM_SIZE', 1024); // maximum allowed png image width (in pixels), tune to make sure GD and PHP can handle such big images
+
+
+
+
+//---- qrtools.php -----------------------------
+
+
+
+
+/*
+ * PHP QR Code encoder
+ *
+ * Toolset, handy and debug utilites.
+ *
+ * PHP QR Code is distributed under LGPL 3
+ * Copyright (C) 2010 Dominik Dzienia
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+ class QRtools {
+
+ //----------------------------------------------------------------------
+ public static function binarize($frame)
+ {
+ $len = count($frame);
+ foreach ($frame as &$frameLine) {
+
+ for($i=0; $i<$len; $i++) {
+ $frameLine[$i] = (ord($frameLine[$i])&1)?'1':'0';
+ }
+ }
+
+ return $frame;
+ }
+
+ //----------------------------------------------------------------------
+ public static function tcpdfBarcodeArray($code, $mode = 'QR,L', $tcPdfVersion = '4.5.037')
+ {
+ $barcode_array = array();
+
+ if (!is_array($mode))
+ $mode = explode(',', $mode);
+
+ $eccLevel = 'L';
+
+ if (count($mode) > 1) {
+ $eccLevel = $mode[1];
+ }
+
+ $qrTab = QRcode::text($code, false, $eccLevel);
+ $size = count($qrTab);
+
+ $barcode_array['num_rows'] = $size;
+ $barcode_array['num_cols'] = $size;
+ $barcode_array['bcode'] = array();
+
+ foreach ($qrTab as $line) {
+ $arrAdd = array();
+ foreach(str_split($line) as $char)
+ $arrAdd[] = ($char=='1')?1:0;
+ $barcode_array['bcode'][] = $arrAdd;
+ }
+
+ return $barcode_array;
+ }
+
+ //----------------------------------------------------------------------
+ public static function clearCache()
+ {
+ self::$frames = array();
+ }
+
+ //----------------------------------------------------------------------
+ public static function buildCache()
+ {
+ QRtools::markTime('before_build_cache');
+
+ $mask = new QRmask();
+ for ($a=1; $a <= QRSPEC_VERSION_MAX; $a++) {
+ $frame = QRspec::newFrame($a);
+ if (QR_IMAGE) {
+ $fileName = QR_CACHE_DIR.'frame_'.$a.'.png';
+ QRimage::png(self::binarize($frame), $fileName, 1, 0);
+ }
+
+ $width = count($frame);
+ $bitMask = array_fill(0, $width, array_fill(0, $width, 0));
+ for ($maskNo=0; $maskNo<8; $maskNo++)
+ $mask->makeMaskNo($maskNo, $width, $frame, $bitMask, true);
+ }
+
+ QRtools::markTime('after_build_cache');
+ }
+
+ //----------------------------------------------------------------------
+ public static function log($outfile, $err)
+ {
+ if (QR_LOG_DIR !== false) {
+ if ($err != '') {
+ if ($outfile !== false) {
+ file_put_contents(QR_LOG_DIR.basename($outfile).'-errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+ } else {
+ file_put_contents(QR_LOG_DIR.'errors.txt', date('Y-m-d H:i:s').': '.$err, FILE_APPEND);
+ }
+ }
+ }
+ }
+
+ //----------------------------------------------------------------------
+ public static function dumpMask($frame)
+ {
+ $width = count($frame);
+ for($y=0;$y<$width;$y++) {
+ for($x=0;$x<$width;$x++) {
+ echo ord($frame[$y][$x]).',';
+ }
+ }
+ }
+
+ //----------------------------------------------------------------------
+ public static function markTime($markerId)
+ {
+ list($usec, $sec) = explode(" ", microtime());
+ $time = ((float)$usec + (float)$sec);
+
+ if (!isset($GLOBALS['qr_time_bench']))
+ $GLOBALS['qr_time_bench'] = array();
+
+ $GLOBALS['qr_time_bench'][$markerId] = $time;
+ }
+
+ //----------------------------------------------------------------------
+ public static function timeBenchmark()
+ {
+ self::markTime('finish');
+
+ $lastTime = 0;
+ $startTime = 0;
+ $p = 0;
+
+ echo '
+
BENCHMARK
+ ';
+
+ foreach($GLOBALS['qr_time_bench'] as $markerId=>$thisTime) {
+ if ($p > 0) {
+ echo '