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/f005/Foo.php

@@ -0,0 +1,13 @@
+<?php
+
+namespace DeepCopy\f005;
+
+class Foo
+{
+    public $cloned = false;
+
+    public function __clone()
+    {
+        $this->cloned = true;
+    }
+}