Collective.formcriteria

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* Move the search form viewlet into a portlet
* Patch the ATCT addCrierion method to properly initialize criteria so
that they can safely be created in code
* Use the same mismatched meta_type ATCT for the
FormDateCriterion

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* Fix incompatibility when extended sort criterion were added to
existing ATCT ATTopic instances

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* Added multiple sort links to the batch macro

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* Change to use the same names as ATCT where appropriate to avoid some
problems where the ATCT names are expected.
* Flesh out the GenericSetup profile with all other bits in the Plone
profile that make reference to criteria.

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* Use a form prefix for the search form. Fixes calendar JavaScript
bug.
* Fix criterion label to point to the correct form input
* Allow widget special help/description to appear even if the label
isn't rendered and use this for the comma widget
* Fix the handling of postbacks in the comma widget
* Use a "Search Form" view that only renders the search form
* Added boolean criteria
* Added date criteria
* Added path criteria
* Added relative path criteria
* Added integer criteria

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* Form criteria are now designated by selecting which fields of each
criterion should be rendered on the search form
* Improve label handling. Remove labels for 'value' field and
"required" markers for all fields.
* Make the search form collapsible and start collapsed when the form
has been submitted
* Add a comma separated criterion