Alpha status reached.

Downloads get run in their own threads which are queued. Downloads of single files as well as zips of playlists are possible. Interaction with db has shown no problems.

templates/updater.html

@@ -1,8 +1,7 @@
 {%- extends "base.html" %}
 
-{% import "bootstrap/utils.html" as utils %}
-
 {% block content %}
+    {{ super() }}
     <div class="container">
         {%- with messages = get_flashed_messages(with_categories=True)  %}
             {%- if messages %}