Release of v4.0.0-rc1

Improved the Schema Table update engine (more). Fix autoloader timing, and loading. Implement the Joomla Powers in JCB code, to move away from JClasses.

libraries/phpspreadsheet/vendor/markbaker/complex/classes/src/Exception.php

@@ -1,13 +0,0 @@
-<?php
-
-/**
- * Exception.
- *
- * @copyright  Copyright (c) 2013-2018 Mark Baker (https://github.com/MarkBaker/PHPComplex)
- * @license    https://opensource.org/licenses/MIT    MIT
- */
-namespace Complex;
-
-class Exception extends \Exception
-{
-}