Merge pull request #212 from kata-csc/kata-csc-fix-group-numbers

Have groups per page as 21 or as 7x3 grid.

ckan/controllers/group.py

@@ -138,7 +138,7 @@ def index(self):
             collection=results,
             page=request.params.get('page', 1),
             url=h.pager_url,
-            items_per_page=20
+            items_per_page=21
         )
         return render(self._index_template(group_type))