runner: add favicon

slapos/runner/templates/layout.html

@@ -5,6 +5,8 @@
 	{% block head %}
     <meta http-equiv="content-type" content="text/html; charset=utf-8" />
 
+    <link rel="shortcut icon" type="image/png" href="{{ url_for('static', filename='images/favicon.png') }}" />
+
     <title>{{ session.title }} - SlapOS Buildout web runner</title>
 
     <meta name="keywords" content="" />