Made the data argument in Point's __init__method to be an optional argument by making it a boost::python::optional.
From: Dmitriy Morozov <morozov@cs.duke.edu>
Date: Fri, 14 Mar 2008 18:34:41 -0400
Subject: properties changes (state)
Message-Id: <cff004eda75a26c2-ad10cae14deb092d-artemis@metatron>
References: <cff004eda75a26c2-0-artemis@metatron>
In-Reply-To: <cff004eda75a26c2-0-artemis@metatron>
state=fixed