Improve generation of gallery lists with listing of mentioning posts, start to apply

gallery/2015-christmas-holidays/index.html

@@ -1,12 +1,8 @@
 ---
 layout: gallery-list
-title: 
+title: Christmas Holidays
 highlight_photo: 0093145
 date: 2015-12-25
 end_date: 2016-01-01
----
-<div itemprop="description">
-    <p></p>
-    <a href="slideshow.html">[ slideshow ]</a>
-</div>
-{% include gallery_list.html gallery='2015-christmas-holidays' %}
+map: false
+---