Collective-easyform

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NOTE: if you deploy 2.1.1+, the easyform extended validations start working again on fields
in extra field sets (they only worked on the main/default fields). This could cause some
issues if those validators, or default values, were misconfigured in the first place.

- Let ``filter_fields`` return fields in the correct order.
This fixes the order on the default mailer template.
Part of `issue 163 <https://github.com/collective/collective.easyform/issues/163>`_.
[maurits]

- Fixed validation, inline validation, and defaults for fields in fieldsets.
Refs issues `172 <https://github.com/collective/collective.easyform/issues/172>`_
and ` 157 <https://github.com/collective/collective.easyform/issues/157>`_. [fredvd, maurits]

- Moved from dotted to named behaviors.
[iham]

- Avoid potential CannotGetPortalError on startup 164
[laulaz]

- Add collective.z3cform.norobots integration 145
[1letter/gomez]

- For CSV and XML attachments send an empty string if the value is None instead of the string "None"
[nngu6036]

- Put in tests to show recaptcha validation prevents submissions
[djay]

- Fix UnicodeDecodeError while attaching an image to a mail 187
[krissik]

- update instructions for recaptcha functionality
[tkimnguyen]

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New features:

- Code style black & isort.
[jensens]

- Add "CheckBoxFieldWidget" for Multi-Choice-Field and "RadioFieldWidget" for Single-Choice-Field
[petschki]

- add ``plone.formwidget.recaptcha`` to test dependencies
[petschki]

- Added style bundle with content type icon for toolbar and folder_contents
[agitator]

- nicer representation of complex field types such as bools and dates when serialized to XML or CSV attachments
[nngu6036]

Bug fixes:

- fix bug where lines longer than 998 in XML or CSV attachmentments can get wrapped
[nngu6036]

- add missing ``header_injection`` implementation
[krissik]

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New features:

- Add Support for Python 3.
[pbauer]

- a11y: Added role attribute for portalMessage
[nzambello]

Bug fixes:

- fixed startup ResourceWarning on open files
[ajung]

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- Spanish translation.
[erral]

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New features:

- New method in api: filter_widgets. If a isn't selected, mailer action don't try
to render its widget. This is useful when we want to avoid to show some widgets
like recaptcha, that could breaks if it's in the wrong context.
[cekk]

Bug fixes:

- changed the permission of saveddata action from "Manage portal" to "Modify portal content" so "action" and "view" have the same permission
[eikichi18]

- Fix to thanks page regression introduced in 2.0.0b4
[instification]

- Fix e-mail attachments with non ASCII chars
[tomgross]

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- Add option to attach form data in XML format to email
[nngu6036]

- add some mailer adapter documentation, add required package version pins
[tkimnguyen]