Add redirect on our prod/Django DEBUG=False 500 error page.

(imported from commit d23eacefec269b80b15a64feeba9206e08470f33)

templates/500.html

@@ -2,6 +2,10 @@
 
 {% block for_you %} isn't feeling too good. {% endblock %}
 
+{% block porticocustomhead %}
+<meta http-equiv="refresh" content="60;URL='/'">
+{% endblock %}
+
 {% block portico_content %}
 
 <br/>

templates/zephyr/portico.html

@@ -12,6 +12,9 @@ hence the name.
     {% block customhead %}
     {% compressed_css 'portico' %}
     <link href="/static/third/zocial/zocial.css" rel="stylesheet" />
+    {% block porticocustomhead %}
+
+    {% endblock %}
     {% endblock %}
 
 {% block content %}