Fixed functional.http to only pass the request body (no headers) to
publish_module. Thanks to Andreas Zeidler.

- Nuked the decorator and moved its functionality to the suite factory proper.
- Made runalltests skip 'tests.py' when running ZTC tests.
- Don't run testWebserver.py as part of the Zope2 test suite.

Increased frame depth to account for decorator.

Help avoid acquisition disaster in Folder.manage_main (main.dtml).

Fixed MailHost documentation; simple_send does not
process or validate its arguments in any way.
Resolves http://www.zope.org/Collectors/Zope/2152

ZTUtils.make_hidden_input did not escape double-quotes.
Fixes http://www.zope.org/Collectors/Zope/2175

Fixes http://www.zope.org/Collectors/Zope/2176

Moved 'alt' property from File to Image.
Fixes http://www.zope.org/Collectors/Zope/1907

Specifying session-resolution-seconds >= 1200 caused Zope startup to fail.
Fixes http://www.zope.org/Collectors/Zope/1983

webdav.Resource.COPY did not send ObjectClonedEvent.
Fixes http://www.zope.org/Collectors/Zope/2169

Fixes http://www.zope.org/Collectors/Zope/2169

through a svn:external

- Fixup usage of urljoin in webdav.davcmds
(a shame I missed the deadline to Zope 2.9.4)