Collective-eeafaceted-z3ctable

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- Nothing changed yet.

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- Fixed the `CheckBoxColumn`, add a name to the select all/nothing checkbox so
it is possible to have several checkbox columns (on same table or when
displaying several tables on same page).
[gbastien]

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- Added possibility to define a `header_help` message that will be displayed
when hovering header title.
[gbastien]
- Added `<label>` tag around input for the `CheckBoxColumn` so it can be syled
to ease checkbox selection on click.
[gbastien]

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- In `PrettyLinkWithAdditionalInfosColumn`, use IDataManager to get widget value.
[gbastien]

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- Render `DataGridField` in `PrettyLinkWithAdditionalInfosColumn` vertically.
[gbastien]
- Bugfix in `PrettyLinkWithAdditionalInfosColumn`, sometimes the widget's
context was the previous row object.
[gbastien]
- Added parameter `PrettyLinkWithAdditionalInfosColumn.simplified_datagridfield`
and set it to `False` by default.
[gbastien]
- Moved `MemberIdColumn.get_user_fullname` out of `MemberIdColumn` so it can be
easily used from outside.
[gbastien]
- Added `PrettyLinkWithAdditionalInfosColumn.ai_extra_fields`, that
let's include extra data not present in schema, by default this will include
`id`, `UID` and `description`.
[gbastien]

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- In `PrettyLinkWithAdditionalInfosColumn`, removed to setup around current URL
that was necessary for displaying image and files correctly but instead,
require `plone.formwidget.namedfile>=2.0.2` that solves the problem.
[gbastien]