[Zope-CMF] CMF 1.5.4-beta

[Jens Vagelpohl]

So hopefully this is the last pre-Plone 2.1 release. As always,  
please test this is  as good as you can and don't check anything  
that's not an urgent bug fix into the 1.5 branch until 1.5.4 final is  
out, which I plan on doing this coming weekend unless something bad  
happens.

The changes, meaning the items people should look at closely over the  
next week, were the following:

-------------------------------
   Bug Fixes

     - CMFCore.utils: The return value from _mergedLocalRoles allowed
       direct manipulation of objects' local role settings since it
       contained references to the actual values instead of copies.
       (http://www.zope.org/Collectors/CMF/376)

     - CMFTopic.DateCriteria: The behavior and naming of date criteria
       operators was very confusing and in many cases unexpected and
       wrong. For that reason e.g. Plone replaced the implementation
       with a more user-friendly handling which is hereby introduced
       to CMF proper. (http://www.zope.org/Collectors/CMF/339)

     - CMFCore.PortalContent, CMFCore.FSSTXMethod, CMFTopic.Topic,
       CMFDefault.SkinnedFolder: Cache headers from the Caching  
Policy Manager
       never got set for DTML-based skins due to the way the view  
template
       __call__ method was invoked. (http://www.zope.org/Collectors/ 
CMF/374)

     - CMFCore.FSImage and FSFile: Unlike the current behavior of  
Zope itself,
       FSImage and FSFile would set a content-length response header  
for 304
       (not modified) responses, which should not be done according to
       RFC 2616. It won't do so anymore, but Zope itself will still  
force a
       content-length header in ZServer.HTTPResponse. This misbehavior
       has been filed as a Zope issue (http://www.zope.org/Collectors/ 
Zope/1866).
       (http://www.zope.org/Collectors/CMF/372)

     - PortalFolder: Improved the _checkId method.
       Method Aliases mask objects with matching IDs. Thus _checkId()  
and
       checkIdAvailable() now make sure non-managers can't create  
objects with
       IDs already taken by Method Aliases of the current folder.

     - CMFDefault.Image and CMFDefault.File: When calling the  
constructor,
       any intelligent content type detection would be destroyed by the
       call to initialize Dublin Core values, which would overwrite the
       content_type. It is now preserved, if possible.
       (http://www.zope.org/Collectors/CMF/370)

   Features

     - CMFTopic.Topic: Made Topics a tad more useful by subclassing from
       CMFDefault.SkinnedFolder instead of CMFCore.PortalFolder, because
       SkinnedFolder is CatalogAware. Topics now offer useful  
information
       for Title, Description and SearchableText, so Topic objects can
       be located in the portal by using the standars search facilities.
       (http://www.zope.org/Collectors/CMF/53)

   Others

     - CMFCore.PortalFolder._checkId() allows root doted prefixed name
       object overrides.
-----------------------------------------------

jens