Bunch of changes including mpdf library for creating pdf of invoices. It now attaches a PDF invoice when marked sent. Don't mark invoice_status sent if it partial or paid, removed green text from balance under clients only use red if the client has a balance and some other cleanups were done

vendor/setasign/fpdi/src/FpdiException.php

@@ -0,0 +1,19 @@
+<?php
+/**
+ * This file is part of FPDI
+ *
+ * @package   setasign\Fpdi
+ * @copyright Copyright (c) 2019 Setasign - Jan Slabon (https://www.setasign.com)
+ * @license   http://opensource.org/licenses/mit-license The MIT License
+ */
+
+namespace setasign\Fpdi;
+
+/**
+ * Base exception class for the FPDI package.
+ *
+ * @package setasign\Fpdi
+ */
+class FpdiException extends \Exception
+{
+}