Merge branch 'autoload_replacement' into 'master'

Replace '__autoload' (deprecated in PHP 7.2) with 'spl_autoload_register'.

See merge request !54

include/autoload.php

@@ -1,7 +1,7 @@
 <?php
 	require_once "functions.php";
 
-	function __autoload($class) {
+	spl_autoload_register(function($class) {
 		$class_file = str_replace("_", "/", strtolower(basename($class)));
 
 		$file = dirname(__FILE__)."/../classes/$class_file.php";
@@ -10,4 +10,4 @@
 			require $file;
 		}
 
-	}
+	});