sort tasks by level

service/src/main/java/com/telephoners/krakyournet/ctf/repositories/TasksRepository.java

@@ -34,6 +34,7 @@ public class TasksRepository extends Repository<Task>
     public List<Task> getAllPublic()
     {
         return datastore.createQuery(Task.class)
+                .order("level")
                 .retrievedFields(true, DBObjectUtils.getPublicFields(Task.class))
                 .asList();
     }