Pull in Acquisition from the new external branch

doc/CHANGES.txt

@@ -8,6 +8,14 @@ Zope Changes
 
     Bugs Fixed
 
+      - 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 Acquisition's extension types to hold the
+        fully qualified name. This ensures classes have their ``__module__``
+        set correctly.
+
       - Updated 'pytz' external to point to '2010b' version.
 
       - Protect ZCTextIndex's clear method against storing Acquisition wrappers.