Spirit-releaser

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- Nothing changed yet.

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- Fix open mode.
- Python3 compatibility.

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- Set correct initial value for exclude list.
[tmassman]

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- Add support for multiple diazo themes in one package.
[tmassman]
- Add support for excluding files/folders from zipped diazo themes.
[tmassman]

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- Use correct version number within a release.
[tmassman]

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- Set correct folder name before doing zip export.
[tmassman]