Zope.app.wsgi

===================

- Set the WSGI environment's ``REMOTE_USER`` item (if not already set)
with the Zope principal label. (This is the same data set in
the ``wsgi.logging_info`` environment item.)

This change allows user info to be used by `paste.translogger
<http://pythonpaste.org/modules/translogger.html>`_ middleware (or
any similar middleware that uses ``REMOTE_USER``), which provides
access logging.

===================

- Update to zope.testbrowser 4.0.0 which uses WebTest instead of wsgi_intercept.

===================

- Fixed ``zope.app.wsgi.testlayer.http`` to work with changes made in
version 3.11.0.

===================

- Moved `wsgi_intercept` support to ``zope.testbrowser.wsgi``, thus
requiring at least version 3.11 of this package:

- Moved ``zope.app.wsgi.testlayer.Browser`` to
``zope.testbrowser.wsgi.Browser``, but left BBB import here.

- Split up ``zope.app.wsgi.testlayer.BrowserLayer`` into generic WSGI
browser layer (``zope.testbrowser.wsgi.Layer``) and ZODB/ZOPE specific
part (``zope.app.wsgi.testlayer.BrowserLayer`` as before).

===================

- Add pluggability for setting up WSGI middleware in testlayer.

==================

- Python 2.7 compatibility for xmlrpc. Transplant of zope.app.testing r116141.