==================
- Remove dependency on ZODB by allowing to specify storage factory for
``zope.cachedescriptors.method.cachedIn`` which is now ``dict`` by default.
If you need to use BTree instead, you must pass it as ``factory`` argument
to the ``zope.cachedescriptors.method.cachedIn`` decorator.
- Remove zpkg-related file.
- Clean up package description and documentation a bit.
- Change package mailing list address to zope-dev at zope.org, as
zope3-dev at zope.org is now retired.