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/composer/autoload_psr4.php

@@ -0,0 +1,13 @@
+<?php
+
+// autoload_psr4.php @generated by Composer
+
+$vendorDir = dirname(dirname(__FILE__));
+$baseDir = dirname($vendorDir);
+
+return array(
+    'setasign\\Fpdi\\' => array($vendorDir . '/setasign/fpdi/src'),
+    'Psr\\Log\\' => array($vendorDir . '/psr/log/Psr/Log'),
+    'Mpdf\\' => array($vendorDir . '/mpdf/mpdf/src'),
+    'DeepCopy\\' => array($vendorDir . '/myclabs/deep-copy/src/DeepCopy'),
+);