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/myclabs/deep-copy/fixtures/f008/A.php

@@ -0,0 +1,18 @@
+<?php
+
+namespace DeepCopy\f008;
+
+class A
+{
+    private $foo;
+
+    public function __construct($foo)
+    {
+        $this->foo = $foo;
+    }
+
+    public function getFoo()
+    {
+        return $this->foo;
+    }
+}