argument/attribute missing in testbrowser tests.

- fixed the auth encoding classifier 

 - Add guards for 'all' and 'any', new in Python 2.5. Add support for 'key' keyword argument to 'max' and 'min' guards

 - Avoid raising string exceptions. If one is found, upgrade it to InternalError and keep the original exception name as part of exc_value

  2.6. Adjust tests accordingly.

  relative using new syntax so that they work on Python 2.6.

  Ranjith Kannikara, GSoC student.

  Ranjith Kannikara, GSoC student.

The changes made in Acquisition.c in implicit comparison made avail to explicit comparison also.

The doc test has been slightly changed in ZPublisher to get the error message extracted correctly        .

The Wrapper_compare function from tp_compare to tp_richcompare.
Also another function Wrapper_richcompare is added.

Changed the condtion checking for setting status of HTTPresponce from
if( isinstance(status, types.ClassType) and issubclass(status, Exception))
to if( isinstance(status, (type, types.ClassType)) and issubclass(status, Exception))
for fixing the failures in the module Zope2

M    doc/CHANGES.txt
M    lib/python/ZPublisher/HTTPResponse.py

Changed 'fast_listen' zope.conf option to 'fast-listen'.

Merged the slinkp-datetime-200007 branch: fix the DateTime(anotherDateTime) constructor to preserve timezones.

o This branch will *not* be merged to the 2.11 line, but *will* be merged
  to the trunk.

o Third-party products which depend on 2.11 but would like to start removing
  Z2 interfaces themselves can use this branch for testing.