[Zope] WebDAV/Word readonly problem resolved

[Andreas Jung]

The long outstanding problem that WinWord treated a .html file as
read-only when it has been opened through WebDAV/webfolder is finally
resolved. Joachim Schmitz gave the hint that WinWord depends on the
HTTP ETAG header that Zope usually did not send. This behaviour is odd 
because HTTP 1.1 does not require that a server sends this header.

The CVS trunk and Zope-2_4-branch contain a modified version of 
lib/python/OFS/DTMLMethod.py that solves that problem.

Andreas

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