------------------
- Added Dexterity support in a ``[dexterity]`` extra requirement in ``setup.py``.
This has ``plone.behavior`` and ``plone.dexterity`` as dependencies.
[maurits]
- Moved Archetypes support to an ``[archetypes]`` extra requirement in ``setup.py``.
This has ``archetypes.schemaextender`` as dependency.
[maurits]
- Register the default adapter only for Archetypes base content, instead of everything.
[maurits]
- Test only with Python 2.7 and Plone 4.3.
[maurits]