Update changelog to reference documented issue. Fixes #258.
Bumped to 6.0 in preparation for next release.
Added tag 6.0 for changeset 755cbfd3743f
Bumped to 6.1 in preparation for next release.
Add doctesting of modules. Ref #259.
Use rpartition here, essential to the algorithm. Fixes #259.

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extra : amend_source : d7b3c001b4db616a67793dcc57d5c13e3828ad3a