Update about page

- Show more software versions in debug mode (only)
- Add license links and information

snikket_web/templates/base.html

@@ -6,6 +6,7 @@
 		<meta name="viewport" content="width=device-width, initial-scale=1">
 		{% block style %}
 		<link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='css/common.css') }}">
+		<link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='css/app.css') }}">
 		{% endblock %}
 	</head>
 	<body{% if body_id | default(False) %} id="{{ body_id }}"{% endif %}{% if body_class | default(False) %} class="{{ body_class }}"{% endif %}>{% block body %}{% endblock %}</body>