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: Fri, 04 Apr 2008 11:18:00
State: fixed
Subject: Switch in the pairing in Case 1.2
Message-Id: <8aa25bcae639fc99-0-artemis@moscow>
If simplex i is unpaired in Case 1.2, while i+1 is paired with l, and R[i,l]=1
there is a switch in the pairing in Case 1.2.