Plone.app.iterate

------------------

Bug fixes:

- Do not depend on Products.Archetypes anymore. (part 3)
[tomgross]

------------------

Bug fixes:

- Do not depend on Products.Archetypes anymore. (part 2)
[tomgross]

- Remove explicit dependency on ZODB3
[tomgross]

------------------

Bug fixes:

- removed "change portal events" permission
[kakshay21]

- Prevent using queryUtility with name=None
[pbauer]

------------------

New features:

- Add each field label for the diff view, fix visual diff link and add break
[frapell]

Bug fixes:

- Change ``IIterateSettings.checkout_workflow_policy`` to ASCIILine,
as required by ``Products.CMFWorkflowPolicy``.

------------------

Bug fixes:

- Fix test in Zope 4. [davisagli]

------------------

New features:

- Do not depend on Products.Archetypes anymore.
If Archetypes is present it still registers the adapters.
[jensens]

Bug fixes:

- Do not use unittest2 anymore.
[jensens]

- Cleanup: isort, zca decorators, etc.
[jensens]

- Some more cleanup.
[gforcada]