Nuplone

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- Add a ``nuplone-version`` view which can be used to break caching of resources.

- Add a new ``NuPlone.bundle`` resource directory and deliver the bundle directly from NuPlone.

- Update all JavaScript resources to use latest Patternslib (7.4.0).
Fixes a number of security problems with old JavaScript.

- Remove Support for IE<11.

- Cleanup resources.

- Fixed CSRF issue with copy & paste.

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- Text input: Take type from widget if available
- Decrease log verbosity

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- Restore ordering support that accidentally got lost in 20

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BREAKING CHANGES:

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- Removed the update-order tile

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- Improve styles for list of checkboxes and labels by adding more spacing.
- Fix checkboxlist to show the field's title on the fieldset legend instead of the value of the first item.
- Show validation errors that are not associated with a widget (like invariants).