Plone.app.dexterity

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Bug fixes:

- Make sure robot autologin test fixture is not accidentally torn down
when the Dexterity fixture's ZODB sandbox is reverted.
[davisagli]

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Bug fixes:

- Uniformity with the "Contributors" label.
[arsenico13]

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Bug fixes:

- Modernized the ``vocabularies`` documentation.
[jensens]

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Bug fixes:

- The ``ICategorization`` behavior should only expose those content languages which
are configured instead of all available languages.
[thetet]

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New features:

add documentation for plone.app.contenttypes.behaviors.thumb_icon.IThumbIconHandling
see PLIP https://github.com/plone/Products.CMFPlone/issues/1734
[fgrcon]

Bug fixes:

- The ``ICategorization`` behavior should only expose those content languages which are configured instead of all available languages.
[thet]

- fix typo in deprecation message
[tkimnguyen]

- Remove the transaction.begin call before creating a dx object,
remove the transaction.commit call after creating a dx object.
Fixes 243.
[ale-rt]

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Bug fixes:

- Cleanup code of ``permissions.py`` (ZCA-decorator, reduce complexity)
[jensens]

- Fix issue with field permissions check on add forms when the parent has no "Modify portal content" permission.
New: For add forms use the "Add portal content" permission as default field permission.
As great side effect vocabularies for i.e. AjaxSelectWidget from ``plone.app.content``,
which are using the check, are working on add forms in a context w/o "Modify portal content".
[jensens]
- removed deprecated getIcon() from documentation
[fgrcon]

- JavaScript formatting according to style guides.
[thet]