Plone.dexterity

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New features:

- Removed test dependency on plone.mocktestcase [davisagli]

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Bug fixes:

- Fix error when copying DX containers with AT children which caused the
children to not have the UID updated properly. [jone]

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Bug fixes:

- Use zope.interface decorator.
[gforcada]

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Fixes:

- Added security declarations from Products.PloneHotfix20160419. [maurits]

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Incompatibilities:

- addCreator should not add if a creator is already set for content. This prevents every
editor on content from adding to the list of creators for an object.
[vangheem]

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New:

- Added Russian translation. [serge73]

- Updated to and depended on pytz 2015.7 and DateTime 4.0.1. [jensens]

Fixes:

- Skipped the tests
``test_portalTypeToSchemaName_looks_up_portal_for_prefix`` and
``test_getAdditionalSchemata`` with isolation problems in Zope 4.
[pbauer]

- Made utils/datify work with newer DateTime and pytz. Adjust tests
to reflect changes. [jensens]

- Fixed: duplicate aq_base without using Acquistion API resulted in an
AttributeError that was masqued in the calling hasattr and resulted
in wrong conclusion. [jensens]

- Made modification test more stable. [do3cc]