Fix the ``tp_name`` of the ImplicitAcquisitionWrapper and ExplicitAcquisitionWrapper to match their Python visible names and thus have a correct ``__name__``.

Expand the ``tp_name`` of our extension types to hold the fully qualified name. This ensures classes have their ``__module__`` set correctly.

Added support for method cache in Acquisition. Patch contributed by Yoshinori K. Okuji. See LP #486182.

add extra tests for the modified version of `PyObject_GetIter` used for iteration support (see https://bugs.launchpad.net/zope2/+bug/360761)

fix iteration proxying to pass `self` acquisition-wrapped into `__iter__` and `__getitem__` (fixes https://bugs.launchpad.net/zope2/+bug/360761)

first add [https://bugs.launchpad.net/zope2/+bug/360761/comments/7 the tests] kindly provided by Tres

Define a FORMAT_N macro and use it wherever a python int needs to be built from a Py_ssize_t variable

Most likely this is not the only 'i' -> 'n' fix required.

o See http://www.python.org/dev/peps/pep-0353/ for details.

update for r94905: the proxy for `__iter__` must not rely on the object to have an `__iter__` itself, but also support fall-back iteration via `__getitem__` (this fixes https://bugs.launchpad.net/zope2/+bug/360761)