Three sets of changes: 1) Make sure that a user doesn't create a query with the same name as an existing query that the user owns. 2) When submitting a new named query, display the name of the query on the index page. 3) Allow optional arguments to indexargs_url by setting their value to None. This will show the argument only if there is a valid value. To match these, changed the template for all search templates so if an error is thrown due to #1 the user stays on the search page so they can fix the issue. Note that I did not add automated tests for these because I couldn't find existing tests for these code paths that I could adapt. I don't understand how the existing Action tests work and there is no doc for them.

See <a href="http://dev.zope.org/Wikis/DevSite/Projects/ZPT">the
ZPT project Wiki</a> for more information about Page Templates, or
<a href="http://www.zope.org/Members/4am/ZPT">the download page</a>
for installation instructions and the most recent version of the software.

This Product requires the TAL and ZTUtils packages to be installed in
your Python path (not Products).  See the links above for more information.