Add dev_commit.sh helper and no-emoji mandate

wp-includes/date.php

@@ -0,0 +1,14 @@
+<?php
+/**
+ * Class for generating SQL clauses that filter a primary query according to date.
+ *
+ * This file is deprecated, use 'wp-includes/class-wp-date-query.php' instead.
+ *
+ * @deprecated 5.3.0
+ * @package WordPress
+ */
+
+_deprecated_file( basename( __FILE__ ), '5.3.0', WPINC . '/class-wp-date-query.php' );
+
+/** WP_Date_Query class */
+require_once ABSPATH . WPINC . '/class-wp-date-query.php';