PortalFolder has public methods without docstrings

The following PortalFolder methods are marked as public, but do not have docstrings. This prevents using them over XML-RPC API, as Zope publisher prevents traversing to them, though otherwise it would be ok.

    #
    # 'IFolderish' interface methods
    #
    security.declarePublic('contentItems')
    def contentItems(self, filter=None):
        # List contentish and folderish sub-objects and their IDs.
        # (method is without docstring to disable publishing)
        #
        ids = self.objectIds()
        return self._filteredItems(ids, filter)

    security.declarePublic('contentIds')
    def contentIds(self, filter=None):
        # List IDs of contentish and folderish sub-objects.
        # (method is without docstring to disable publishing)
        #
        return [ item[0] for item in self.contentItems(filter) ]

    security.declarePublic('contentValues')
    def contentValues(self, filter=None):
        # List contentish and folderish sub-objects.
        # (method is without docstring to disable publishing)
        #
        return [ item[1] for item in self.contentItems(filter) ]