add auto update feature

app/Events/UpdateFinished.php

@@ -0,0 +1,34 @@
+<?php
+
+namespace Laraspace\Events;
+
+use Illuminate\Broadcasting\Channel;
+use Illuminate\Broadcasting\InteractsWithSockets;
+use Illuminate\Broadcasting\PresenceChannel;
+use Illuminate\Broadcasting\PrivateChannel;
+use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
+use Illuminate\Foundation\Events\Dispatchable;
+use Illuminate\Queue\SerializesModels;
+
+class UpdateFinished
+{
+    use Dispatchable, InteractsWithSockets, SerializesModels;
+
+    public $alias;
+
+    public $new;
+
+    public $old;
+
+    /**
+     * Create a new event instance.
+     *
+     * @return void
+     */
+    public function __construct($alias, $old, $new)
+    {
+        $this->alias = $alias;
+        $this->old   = $old;
+        $this->new   = $new;
+    }
+}