* Add a delay to document processing for each service

Version 8.0.0 - 2026-04-20
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* Bug fixes (see mercurial logs for details)
* Add support for Python 3.14
* Remove support for Python 3.9
* Ensure that the unit price on the invoice line is not negative
* Add an "Update Status" button to the Peppol document

Version 7.8.0 - 2025-12-15
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Initial release