[#1384] Make the database query in related_list

* We didn't actually do the database query in related_list if we
  didn't pass a dataset. This commit fixes that.
* Share the dictize function for both cases.

ckan/logic/action/get.py

@@ -262,10 +262,11 @@ def related_list(context, data_dict=None):
 
         if data_dict.get('featured', False):
             related_list = related_list.filter(model.Related.featured == 1)
+        related_items = related_list.all()
     else:
         relateds = model.Related.get_for_dataset(dataset, status='active')
         related_items = (r.related for r in relateds)
-        related_list = model_dictize.related_list_dictize( related_items, context)
+    related_list = model_dictize.related_list_dictize( related_items, context)
     return related_list