diff --git a/.gitignore b/.gitignore
index 75e4ead1..67677604 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,6 @@
 /vendor
 /config/config.php
 /config/xs.course.ini
+/public/robots.txt
+/public/sitemap.xml
 *KgTest*
diff --git a/app/Caches/CourseUser.php b/app/Caches/CourseUser.php
deleted file mode 100644
index b4ec6e92..00000000
--- a/app/Caches/CourseUser.php
+++ /dev/null
@@ -1,33 +0,0 @@
-<?php
-
-namespace App\Caches;
-
-use App\Repos\CourseUser as CourseUserRepo;
-
-class CourseUser extends Cache
-{
-
-    protected $lifetime = 1 * 86400;
-
-    public function getLifetime()
-    {
-        return $this->lifetime;
-    }
-
-    public function getKey($id = null)
-    {
-        return "course_user:{$id}";
-    }
-
-    public function getContent($id = null)
-    {
-        list($courseId, $userId) = explode('_', $id);
-
-        $repo = new CourseUserRepo();
-
-        $courseUser = $repo->findCourseUser($courseId, $userId);
-
-        return $courseUser ?: null;
-    }
-
-}
diff --git a/app/Providers/Config.php b/app/Providers/Config.php
index 37e0c66b..5099228d 100644
--- a/app/Providers/Config.php
+++ b/app/Providers/Config.php
@@ -2,7 +2,7 @@
 
 namespace App\Providers;
 
-use Phalcon\Config as PhalconConfig;
+use Phalcon\Config as PhConfig;
 
 class Config extends Provider
 {
@@ -15,7 +15,7 @@ class Config extends Provider
 
             $options = require config_path('config.php');
 
-            return new PhalconConfig($options);
+            return new PhConfig($options);
         });
     }