Zope.app.testing

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

- Remove invalid HTTP_REFERER default. (We both don't want a default to allow
others testing without a referer and 'localhost' is not a reasonable
default anyway.) This improves the situation for 98437

- Made the xmlrpc code compatible with Python 2.7.

- Removed test dependency on ``zope.app.zptpage``.

- Switched test dependency from ``zope.app.securitypolicy`` to
``zope.securitypolicy``.

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

- Rereleasing 3.7.5 as 3.7.7 to fix brown bag release.

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

- Brown bag release: It broke the tests of ``zope.testbrowser``.

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

- Switch doctests to use the stdlib ``doctest`` module, rather than the
deprecated ``zope.testing.doctest`` variant.

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

- Import hooks functionality from zope.component after it was moved there from
zope.site.

- Import ISite from zope.component after it was moved there from
zope.location. This lifts the dependency on zope.location.

- Fix tests using a newer zope.publisher that requires zope.login.

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

- Fixed tests for python 2.4 as well as python 2.5 and 2.6; the change in
version 3.7.1 introduced test regressions in python 2.4.