Raptus.multilanguagefields

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* Fixed redirection in images __bobo_traverse__

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* Use Plone 4+ translation files system.
(Translations now work under Plone 4)
[thomasdesvenain]

* Plone 4.1 compatibility.
[thomasdesvenain]

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* Final fix for the TinyMCE issue

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* Fixed multilanguage blob fields (renaming now works, and several issues are resolved when using
content language fallback)
* Fixed image and file caching patch to support language fallback
* Fixed TinyMCE issue where the wysiwyg editor was not displayed if no content was previously stored
* Adjusted image scale traversal patches to make caching language aware

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* Added patches to make caching of images and files language aware

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* fixed validation_helper.js (removed misplaced ',' which raised a javascript error in IE)