Plone.reload

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Breaking changes:

- *add item here*

New features:

- *add item here*

Bug fixes:

- *add item here*

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Breaking changes:

- Add support for Python 3.12. Drop support for Python 2
[pbauer]

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Bug fixes:

- Fix a deprecation warning [ale-rt]

- Fix missing doctype, add html lang, use html5 charset to reload page.
[thet]

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Bug fixes:

- Minor packaging updates.

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- Call invalidate_caches and remove the __pycache__ in Python 3

- Add Python 3.4, 3.5 and 3.6 support. Drop Python 2.6 support.

- Test against Zope 4, while keeping compatibility with Zope 2.13.

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- Use zope.interface decorator.
[gforcada]