Illuminate: ready. (critical)

- DB에서 illuminate를 가져올 수 있도록 설정
- 업그레이듵 불가, RootDB, DB를 직접 수정해야함

vendor/illuminate/contracts/Queue/ClearableQueue.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace Illuminate\Contracts\Queue;
+
+interface ClearableQueue
+{
+    /**
+     * Delete all of the jobs from the queue.
+     *
+     * @param  string  $queue
+     * @return int
+     */
+    public function clear($queue);
+}