facebook queueing on failure, sync update.php with boot.php update version to avoid race condition

include/queue_fn.php

@@ -0,0 +1,16 @@
+<?php
+
+function update_queue_time($id) {
+	logger('queue: requeue item ' . $id);
+	q("UPDATE `queue` SET `last` = '%s' WHERE `id` = %d LIMIT 1",
+		dbesc(datetime_convert()),
+		intval($id)
+	);
+}
+
+function remove_queue_item($id) {
+	logger('queue: remove queue item ' . $id);
+	q("DELETE FROM `queue` WHERE `id` = %d LIMIT 1",
+		intval($id)
+	);
+}