Extend dicts.merge to be (optionally) recursive
This is very useful when dealing for views that expect to be
inhereted from but wish to provide default values.
Patch by: Sverre Rabbelier
<?xml version="1.0" encoding="UTF-8"?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
{% for location in sitemaps %}<sitemap><loc>{{ location }}</loc></sitemap>{% endfor %}
</sitemapindex>