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/psr/log/Psr/Log/LoggerAwareTrait.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Psr\Log;
+
+/**
+ * Basic Implementation of LoggerAwareInterface.
+ */
+trait LoggerAwareTrait
+{
+    /**
+     * The logger instance.
+     *
+     * @var LoggerInterface
+     */
+    protected $logger;
+
+    /**
+     * Sets a logger.
+     *
+     * @param LoggerInterface $logger
+     */
+    public function setLogger(LoggerInterface $logger)
+    {
+        $this->logger = $logger;
+    }
+}