Remove unused __get_topology

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extra : rebase_source : c94e3e3a6362e55cafec59550223b9731c5feb08
Beginnings of revised topology handling

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extra : rebase_source : 1c1ae1bb3807ee68ff54f3ff6acdee74e62f65d0
Remove quotes from __repr__

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extra : rebase_source : 757a6562afa29dfdca33b303f7caa06982c0d5c7
Rebasing and documentation

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extra : rebase_source : 46c09900f4872d8b0c677e2ecdc5464a463fb1c0
Merge pull request #132 from lawrenceakka/topology

Merging.  This should form the basis for a few other topology changes