Changed the first iterator of PersistenceDiagram to accept dimension as well. Modified documentation.
Bibliography
============
.. |edels| replace:: Herbert Edelsbrunner
.. .. _edels: http://www.cs.duke.edu/~edels/
.. |david| replace:: David Cohen-Steiner
.. .. _david: http://www-sop.inria.fr/geometrica/team/David.Cohen-Steiner/
.. |morozov| replace:: Dmitriy Morozov
.. .. _morozov: http://www.mrzv.org/
.. |afra| replace:: Afra Zomorodian
.. .. _afra: http://www.cs.dartmouth.edu/~afra/
.. |letscher| replace:: David Letscher
.. |gunnar| replace:: Gunnar Carlsson
.. .. _gunnar: http://math.stanford.edu/~gunnar/
.. |vin| replace:: Vin de Silva
.. .. _vin: http://pages.pomona.edu/~vds04747/
.. |mikael| replace:: Mikael Vejdemo Johansson
.. [CdSM09] |gunnar|, |vin|, and |morozov|.
`Zigzag Persistent Homology and Real-valued Functions
<http://www.mrzv.org/publications/zigzags/>`__.
.. [CEM06] |david|, |edels|, and |morozov|.
`Vines and Vineyards by Updating Persistence in Linear Time
<http://www.mrzv.org/publications/vineyards/>`__.
.. [dSVJ09] |vin|, |mikael|.
Persistent Cohomology and Circular Coordinates.
.. [ELZ02] |edels|, |letscher|, and |afra|.
Topological Persistence and Simplification.
.. [ZC05] |afra| and |gunnar|.
Computing Persistent Homology.