[ZPT] ANN: PageTemplates 1.4.0, TAL 1.4.0, ZTUtils 1.1.0

[Evan Simpson]

The newest ZPT is up.  It only includes two of the proposals from the 
straw poll, but the others may take some time, so here we go:

Page Template changes

   Features Added
     - ZPTs are now cache-enabled
     - Added property sheet to ZPT

   Bugs Fixed
     - Expressions with embedded newlines were broken
     - History comparison tried to expand macros
     - Iterator exceptions weren't converted
     - 'Unauthorized' exception couldn't be handled by on-error

TAL changes

   Features Added
     - Added TAL statement: omit_tag="[<boolean expr>]" replaces
       the statement tag with its contents if the boolean
       expression is true or omitted.
     - The TAL and METAL namespaces can be applied to tag names,
       tags in these namespaces are removed from rendered output
       (leaving the contents in place, as with omit_tag)
       whenever attributes in these namespaces would be, and
       tag attributes without explicit namespaces default to the
       tag's namespace (per XML spec).

ZTUtils changes

   Features Added
     - TreeMakers have a setChildAccess() method that you can use
       to control tree construction.  Child nodes can be accessed
       through either an attribute name or callback function.
       Children fetched by attribute name can be filtered through a
       callback function.
     - A new LazyFilter class allows you to filter a sequence using
       Zope security and an optional filter callback function.  The
       security and filter tests are lazy, meaning they are
       performed as late as possible.

       The optional 'skip' argument determines the reaction when
       access to a sequence element is refused by the Zope security
       policy.  The default (None) is to raise the 'Unauthorized'
       exception.  If a string is passed, such elements are
       skipped.  If the string is non-empty, it is treated as a
       permission name, and the element is skipped if the user
       doesn't have that permission on the element.
     - The Zope versions of TreeMaker, SimpleTreeMaker, and Batch
       now use LazyFilter. The TreeMakers have a setSkip() method
       that can be used to set the 'skip' value. Batch has an
       optional 'skip_unauthorized' argument that is passed to
       LazyFilter as 'skip'.
     - Utility functions make_query(), url_query(), and
       make_hidden_input() have been added.

Cheers,

Evan @ Zope