Add more doc to the setCookie method

[madarche]

In the following files
zope/publisher/interfaces/http.py
ZPublisher/BaseResponse.py
ZPublisher/HTTPResponse.py

please add the following text to the docstring of the setCookie method:
"""
kw can contain named parameters such as :
- path
- domain
- expires

Example of use:
setCookie('region', 'moscow', expires="Thu, 21 Dec 1967 23:45:00", path='/foo', domain=".bar.com")
"""

Rationale: at first glance one does not think that those parameters are handled and understood by the code.

Regards

[Colin Watson (cjwatson)]

The zope2 project on Launchpad has been archived at the request of the Zope developers (see https://answers.launchpad.net/launchpad/+question/683589 and https://answers.launchpad.net/launchpad/+question/685285). If this bug is still relevant, please refile it at https://github.com/zopefoundation/zope2.