Plone.app.caching

New features:

- Update the resourceRegistries ETag to use the config registry modification time.
This time is set since Plone 6.0.4.
Fixes `issue 93 <https://github.com/plone/plone.app.caching/issues/93>`_.
[maurits] 93

Bug fixes:

- Fix spelling error.
[gforcada] 124

Bug fixes:

- Do not mention Squid but mentions CDNs in the descriptions. [jensens] 119


Internal:

- Update configuration files.
[plone devs] 13d8d6c0, cbbcff93

Bug fixes:

- Declare dependencies.
[gforcada] 1


Documentation:

- Convert README and CHANGES to markdown. [ericof] 114

Bug fixes:

- Correct Bootstrap classes for `<select />` in controlpanel.
[petschki] (112)
- Revert changes to tests to work with the Zope security fix.
We must have an empty byte, not text, otherwise it is an indication that we get a possibly wrong Content-Type in a 304 status.
See `Zope issue 1089 <https://github.com/zopefoundation/Zope/issues/1089>`_.
[maurits] (1089)

Bug fixes:

- Fix tests to work with the Zope security fix.
[maurits] (106)