fix login form from tutorial (also maybe fixed image)

app/config.py

@@ -1,4 +0,0 @@
-import os
-
-class Config(object):
-    SECRET_KEY = os.environ.get('SECRET_KEY') or os.urandom(16)

app/routes.py

@@ -29,5 +29,5 @@ def getstatus():
 @app.route('/images/blooper.jpg')
 def send_image():
     #filename = os.path.join('resources', 'blooper.jpg')
-    return send_from_directory('/resources/', 'blooper.jpg', as_attachment=True)
+    return send_from_directory('/../resources/', 'blooper.jpg', as_attachment=True)