Acknowledge copyright from original file.

boxtree/area_query.py

 # -*- coding: utf-8 -*-
 from __future__ import division
 
-__copyright__ = """Copyright (C) 2016 Matt Wala"""
+__copyright__ = """
+Copyright (C) 2013 Andreas Kloeckner
+Copyright (C) 2016 Matt Wala"""
 
 __license__ = """
 Permission is hereby granted, free of charge, to any person obtaining a copy