because porting zope.publisher is not done, but with buildout I am able
to run against the branch. Same for ZODB.

IContainer interface does not need to be re-implemented. Added a ``data``
attribute for BBB.

zope.container code just needs the IBroken interface from ZODB, plus some tests
use DemoStorage and transactions.  Moved the tests into a separate suite that
is included conditionally, hedged out the IBroken interface.

Now the only two dependencies that don't support Py3 are zope.publisher and
zope.traversing.

This was needed since a change introduced in zope.proxy in 2006,
but the local copy of _zope_proxy_proxy.c was even more ancient.

Hashes of the files' commits in the persistent repo are as follows:

  - cPersistence.h: 8699c7fc
  - ring.h:         5364296a
  - _compat.h:      3769ede0

This one comes from zope.proxy commit 2938c335, version 4.1.2dev.

More information in the enclosed README.txt file.

(LP#1070719).

Replace deprecated 'zope.component.adapts' usage with equivalent
'zope.component.adapter' decorator.

Replace deprecated 'zope.interface.implements' usage with equivalent
'zope.interface.implementer' decorator.

I tried to adjust the doctest to ensure the traceback is not lost, but
as soon as I start it with a '...' (because I don't care about oldest frames),
the doctest comparator ignores everything about the traceback.

Fixes https://bugs.launchpad.net/zope.container/+bug/705600.

- checkName now checks the type first in checkName
- Convert most namechooser doctests into unittests
- Added more test cases

Add compatibility with ZODB3 3.10 by importing the IBroken interface from it directly. Once we can rely on the new ZODB3 version exclusively, we can remove the dependency onto the zope.broken distribution.

Copy two trivial classes from zope.cachedescriptors into this package, which allows us to remove that dependency. We didn't actually use any caching properties as the dependency suggested.