Issue 2823 - Display new subscription types on subscriptions page

includes/subscriptionList.tmpl

 {#
  # This file is part of the Adblock Plus website,
  # Copyright (C) 2006-2015 Eyeo GmbH
  #
  # Adblock Plus is free software: you can redistribute it and/or modify
  # it under the terms of the GNU General Public License version 3 as
  # published by the Free Software Foundation.
  #
  # Adblock Plus is distributed in the hope that it will be useful,
  # but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 50 matching lines @@
     </td>
   </tr>
   {%- if not parent -%}
     {%- for supplement in subscription["supplemented"]|subscription_sort -%}
       {{ process_subscription(supplement, subscription) }}
     {%- endfor -%}
   {%- endif -%}
 {%- endmacro %}
 
 {% macro display_subscriptions(subscriptions) %}
-  {%- set current_type = None -%}

[kzar, 2015/09/15 15:54:55]

Subscriptions always have a type right? If so we can remove this set statement
and check that current_type is truthy instead of that it isn't None.

[Thomas Greiner, 2015/09/16 12:06:28]

Done. It was just a personal preference to make the code more explicit.

   {%- for subscription in subscriptions|subscription_sort -%}
-    {%- if not subscription["supplements"] or current_type != subscription["type"] -%}

[kzar, 2015/09/15 15:54:55]

How about an application of De Morgan's law?

{% if not (subscription["supplements"] and current_type == subscription["type"])
%}

[Thomas Greiner, 2015/09/16 12:06:28]

Done. Haven't heard about that theorem yet so thanks for sharing.

+    {%- if not (subscription["supplements"] and current_type == subscription["type"]) -%}
       {%- if current_type != subscription["type"] -%}
-        {%- if current_type != None %}

[kzar, 2015/09/15 15:54:55]

Nit: In Python I think you should use `is` for checking if a variable is / isn't
None. If we don't just check for `if current_type` as mentioned above, then I
think we should be doing `if current_type is not None`.

[Thomas Greiner, 2015/09/16 12:06:28]

Done. `is not` was throwing a Jinja2 exception when I tried it out earlier but
checking it like that should be sufficient since I'm no longer explicitly
setting it to `None`.

+        {%- if current_type %}
   </table>
         {%- endif -%}
         {%- set current_type = subscription["type"] %}
   <h2 id="type_{{ current_type }}">{{ get_string("type_" + current_type, "subscriptions") }}</h2>
 
   <table class="subscriptions">
       {%- endif -%}
     {%- endif -%}
     {%- if subscription["type"] not in subscription["supplementsType"] -%}
       {{ process_subscription(subscription) }}
     {%- endif -%}
   {%- endfor %}
   </table>
 {% endmacro %}