Removed the points iterator in PersistenceDaigram; replaced it with a __iter__ method.
Got rid of some python code in __init__.py, since it was not needed with the above change.
Changed the docs to reflect this.
From: Dmitriy Morozov <morozov@cs.duke.edu>
Date: Tue, 11 Mar 2008 04:05:25 -0400
State: fixed
Subject: Scale fitness
Message-Id: <cff004eda75a26c2-0-artemis@metatron>
When computing fitness persistence, divide all values by the maximum fitness.
That way it's possible to compare persistence diagrams for runs in different
environments.