Upgrade PHPMailer

Now using PHPMailer 5.2.7 and its autoloader.
Moved to ‘vendor’ folder and deprecated old qa-class.* files.
Closes #6.

qa-include/qa-app-emails.php

@@ -121,7 +121,7 @@
 
 	//	@error_log(print_r($params, true));
 
-		require_once QA_INCLUDE_DIR.'qa-class.phpmailer.php';
+		require_once QA_INCLUDE_DIR.'vendor/PHPMailer/PHPMailerAutoload.php';
 
 		$mailer=new PHPMailer();
 		$mailer->CharSet='utf-8';

qa-include/qa-app-posts.php

@@ -331,6 +331,7 @@
 	function qa_post_userid_to_handle($userid)
 /*
 	Return the handle corresponding to $userid, unless it is null in which case return null.
+	This function is now DEPRECATED.
 */
 	{
 		trigger_error('Function qa_post_userid_to_handle is deprecated; use qa_userid_to_handle instead', E_USER_NOTICE);

qa-include/qa-class.phpmailer.php

 <?php
+trigger_error('File qa-class.phpmailer.php is deprecated; please use Q2A built-in functions for sending emails', E_USER_NOTICE);
+
 /*~ class.phpmailer.php
 .---------------------------------------------------------------------------.
 |  Software: PHPMailer - PHP email class                                    |

qa-include/qa-class.smtp.php

 <?php
+trigger_error('File qa-class.smtp.php is deprecated; please use Q2A built-in functions for sending emails', E_USER_NOTICE);
+
 /*~ class.smtp.php
 .---------------------------------------------------------------------------.
 |  Software: PHPMailer - PHP email class                                    |

qa-include/vendor/PHPMailer/PHPMailerAutoload.php

+<?php
+/**
+ * PHPMailer SPL autoloader.
+ * PHP Version 5.0.0
+ * @package PHPMailer
+ * @link https://github.com/PHPMailer/PHPMailer/
+ * @author Marcus Bointon (coolbru) <phpmailer@synchromedia.co.uk>
+ * @author Jim Jagielski (jimjag) <jimjag@gmail.com>
+ * @author Andy Prevost (codeworxtech) <codeworxtech@users.sourceforge.net>
+ * @author Brent R. Matzelle (original founder)
+ * @copyright 2013 Marcus Bointon
+ * @copyright 2010 - 2012 Jim Jagielski
+ * @copyright 2004 - 2009 Andy Prevost
+ * @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
+ * @note This program is distributed in the hope that it will be useful - WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+/**
+ * PHPMailer SPL autoloader.
+ * @param string $classname The name of the class to load
+ */
+function PHPMailerAutoload($classname)
+{
+    //Can't use __DIR__ as it's only in PHP 5.3+
+    $filename = dirname(__FILE__).DIRECTORY_SEPARATOR.'class.'.strtolower($classname).'.php';
+    if (is_readable($filename)) {
+        require $filename;
+    }
+}
+
+if (version_compare(PHP_VERSION, '5.1.2', '>=')) {
+    //SPL autoloading was introduced in PHP 5.1.2
+    if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
+        spl_autoload_register('PHPMailerAutoload', true, true);
+    } else {
+        spl_autoload_register('PHPMailerAutoload');
+    }
+} else {
+    /**
+     * Fall back to traditional autoload for old PHP versions
+     * @param string $classname The name of the class to load
+     */
+    function __autoload($classname)
+    {
+        PHPMailerAutoload($classname);
+    }
+}