* Model implements format string style substitution of references.
0.33.0
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* Use internal docutils type for SceneScript settings.
0.32.0
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* Fix an issue on updating to docutils 0.17.
0.31.0
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* Fix unit tests for Condition when not skipped. * Permit regular expressions in Condition values. * `Performer.allows` implements regular expression match where necessary.
0.30.0
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* Dialogue model permits multiple dots in a condition specifier. * Performer implements format string style evaluation of conditions.