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/src/DeepCopy/Matcher/Doctrine/DoctrineProxyMatcher.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace DeepCopy\Matcher\Doctrine;
+
+use DeepCopy\Matcher\Matcher;
+use Doctrine\Common\Persistence\Proxy;
+
+/**
+ * @final
+ */
+class DoctrineProxyMatcher implements Matcher
+{
+    /**
+     * Matches a Doctrine Proxy class.
+     *
+     * {@inheritdoc}
+     */
+    public function matches($object, $property)
+    {
+        return $object instanceof Proxy;
+    }
+}