Eea.facetednavigation

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* Bug fix: Set cache headers for faceted_counter, tagscloud_counter
[voineali 3935]

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* Bug fix: Faceted tal expression widget ignores values with value False.
[voineali 3890]

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* Bug fix: Fixed search by words containing "(", "-" etc [ghicaale 3639c
* Bug fix: Fixed random failure of daterange doctests [voineali 3664]

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* Bug fix: Fixed expandable and collapsible widgets when used in combination with
hide zero count items [voineali 3457]
* Bug fix: Fixed faceted counter for custom portal types defined by
portal_faceted tool [voineali 3139]

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* Bug fix: Fixed alphabetic widget crash when REQUEST.LANGUAGE like 'it-it'.
[voineali 3499]
* Change: Better small loader animation for facets,
as the previous was not visible enough [demarant]
* Feature: Added TAL Expression Widget to allow one to define dynamic queries
(e.g. limit faceted query to context path) [voineali 3538]
* Change: Cleanup faceted js/css computing mechanism and use
portal_javascripts/portal_css instead as eea.jquery provides profiles for
each jQuery plugin [voineali 3553, 3487]

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* Bug fix: Fixed failing tests [voineali]