from cAccessControl-review-branch.

      - WebDAV: '(' and ')' are now allowed in Ids for Zope objects.
        This is needed when one tries to duplicate files using cut&paste
        through Microsoft webfolders.

raise an error on duplicat removal due to recursive entry.

internal dav__* functions in PropertySheets.py although they
are considered to be safe and do not need any escaping. This
caused Zope to be completely incomplete with Windows XP. Fixed !

 - TAL now cononicalizes singleton attributes, so expected output must
   follow suit.

than what BaseStorage provides.

XML or HTML with an 'is_html' property.  If this property doesn't exist,
the default content-type-sniffing behavior is used.

call these)

notification targets.

 - Test "record-style" parameters (caught typo on 'range', which was
   the built-in, rather than the parameter).

 - Ensure that queries which mix 'range' and 'operator' for a given index
   do the Right Thing (TM) (FieldIndexes ignore 'operator'; KeywordIndexes
   ignore 'range').

XXX Future issue to resolve: How to shut up deprecation warnings in
the test suite when running with Python 2.2.  The Zope trunk isn't
required to work w/ 2.2 yet, so it's a non-issue at the moment.

  * There is now a ZPT Reference to go along with the DTML and API
    references in the online help system.

  * I changed the titles of some TAL and METAL help topics to make
    them look better in the help system.

Add some comments that make it clear that the traceback object is not
referenced when the function exits.

This code was correct, because of the outer try/finally that set tb to
None.  This change localizes the handling of the traceback, so that
it's safety can be determined by local inspection.

for object expiry.

did not show  the Webdav LockManager entry in the control panel