Ftw.publisher.sender

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- Fix tests after constrained types adapter added to core. [djowett-ftw]
- Fix IDisableCSRFProtection import error for older versions of plone.protect. [busykoala]

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- Add collective.easyform support: download remote data of safe data adapter. [jone]
- Fix references on new page onto itself are matched as unpublished [Nachtalb]

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- Drop ``ftw.contentpage`` / ``simplelayout.base`` support. [jone]
- Compatibility with ``ftw.publisher.core = 2.13.0``. [jone]

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- Support CSRF protection and fix publishing on plone 5 with it [Nachtalb]
- Fix realm editing form [Nachtalb]

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- Improve ``ftw.trash`` compatibility by using ``contentValues`` instead of ``objectValues``. [jone]

- Refactor synchronizing simplelayout state so that it works for non-content-pages. [jone]

- Introduce new "BeforePublishEvent". [jone]

- Replace simplelayout publishing recursion with a generic mechanism
in order to support PloneFormGen. [jone]

- Replace use of "is_sl_contentish" function with "belongs_to_parent".
This requires an update of `ftw.publisher.core` to the compatible version. [jone]

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- Concatenate csv entries from self and realm in monkeypatched
Products.PloneFormGen download method. [busykoala]