Add migration to tag Cloudlog as version 2.6.22

Introduces a migration that updates the application version to 2.6.22 and triggers the version info dialog for users. The down method reverts the version back to 2.6.21.

application/migrations/204_tag_2_6_22.php

@@ -0,0 +1,30 @@
+<?php
+
+defined('BASEPATH') OR exit('No direct script access allowed');
+
+/*
+*   Tag Cloudlog as 2.6.22
+*/
+
+class Migration_tag_2_6_22 extends CI_Migration {
+
+    public function up()
+    {
+
+        // Tag Cloudlog 2.6.22
+        $this->db->where('option_name', 'version');
+        $this->db->update('options', array('option_value' => '2.6.22'));
+
+        // Trigger Version Info Dialog
+        $this->db->where('option_type', 'version_dialog');
+        $this->db->where('option_name', 'confirmed');
+        $this->db->update('user_options', array('option_value' => 'false'));
+
+    }
+
+    public function down()
+    {
+        $this->db->where('option_name', 'version');
+        $this->db->update('options', array('option_value' => '2.6.21'));
+    }
+}