adding publish date to video-results and rss-feed

searx/templates/opensearch_response_rss.xml

@@ -16,6 +16,7 @@
       <title>{{ r.title }}</title>
       <link>{{ r.url }}</link>
       <description>{{ r.content }}</description>
+      {% if r.pubdate %}<pubDate>{{ r.pubdate }}</pubDate>{% endif %}
     </item>
     {% endfor %}
   </channel>

searx/templates/result_templates/videos.html

@@ -5,6 +5,7 @@
 
     <p>
       <h3 class="result_title"><a href="{{ result.url }}">{{ result.title|safe }}</a></h3>
+      {% if result.publishedDate %}<p class="published_date">{{ result.publishedDate }}</p>{% endif %}
       <a href="{{ result.url }}"><img width="400px" src="{{ result.thumbnail }}" title={{ result.title }} alt=" {{ result.title }}"/></a>
       <p class="url">{{ result.url }}</p>
     </p>