Added points of interest to `loc_child_obj`

+ fixes issues with not being able to find the page for POI objects

GeoffreyApp/models.py

@@ -259,6 +259,8 @@ class Location(models.Model):
             return self.market
         elif hasattr(self, "attraction"):
             return self.attraction
+        elif hasattr(self, "pointofintrest"):
+            return self.pointofintrest
         else:
             return self