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Bug fixes:
- Fixes transitive circular dependency to plone.schema.
Inherit own Browserlayer from new intermediate browserlayer in plone.schema.
[jensens] (163)
- Add ``test`` extra with the same contents as the ``tests`` extra.
The ``tests`` extra will be removed in Plone 7.
[maurits] (164)
Internal:
- Update configuration files.
[plone devs] (3b8337e6)