Products.addremovewidget

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- Fixed similar problem in ComboboxWidget.
See http://plone.org/products/addremovewidget/issues/4
[maurits]

- Fixed iteration over non-sequence in case of blank field, in
combination with LinguaPlone. Patch by Izak Burger.
See http://plone.org/products/addremovewidget/issues/12
[maurits]

- Fixed ASCII decode error by filtering the field vocabulary.
See http://plone.org/products/addremovewidget/issues/10
[dunlapm]

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- Rerelease as someone seems to have done a 1.4.1 egg release at the
end of last year already.
[maurits]

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* Added ``|nothing`` to tabindex in template for not breaking Plone 4.
[maartenkling]

* Removed old-style install, added profile, moved version to setup.py.
[jensens]

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* Fixed error with duplication of entries in the Available column. This fixes
issue 9.
[dunlapm]

* Fixed the long-standing issue with non-ascii characters in terms gathered from
the catalog. Proper vocabularies should be just that, proper vocabularies
where the "id" of a term consists of ascii characters and the "value" can
contain unicode. Check the Vocabulary class in Products.Archetypes for a
reference.
[dunlapm]

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* Removed unecessary style attribute on the combo box text field which broke
rendering in IE 7.
[fschulze]

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* Added logic for drop-in replacement of KeywordWidget
[dunlapm]