Add dev_commit.sh helper and no-emoji mandate

wp-includes/spl-autoload-compat.php

@@ -0,0 +1,14 @@
+<?php
+/**
+ * Polyfill for SPL autoload feature. This file is separate to prevent compiler notices
+ * on the deprecated __autoload() function.
+ *
+ * See https://core.trac.wordpress.org/ticket/41134
+ *
+ * @deprecated 5.3.0 No longer needed as the minimum PHP requirement has moved beyond PHP 5.3.
+ *
+ * @package PHP
+ * @access private
+ */
+
+_deprecated_file( basename( __FILE__ ), '5.3.0', '', 'SPL can no longer be disabled as of PHP 5.3.' );