add function to pretty print the subject address

smash/web/models/subject.py

@@ -102,6 +102,9 @@ class Subject(models.Model):
         editable=True
     )
 
+    def pretty_address(self):
+      return u'{} ({}), {}. {}'.format(self.address, self.postal_code, self.city, self.country)
+
     def mark_as_dead(self):
         self.dead = True
         self.finish_all_visits()