Added code to expose the persistence_diagram class, the bottleneck_distance function and the point class to python. Most of the commonly used methods for each class have been exported. The constructor for point now requires that a data argument be provided along with x and y coord. This needs to be made optional. The constructor for persistence_diagram could possibly be rewritten as well.

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.