French Translation

Improved french (fr) translations for portal.

Translations come from Pootle (http://translate.liferay.com/pootle/fr/portal/) but there's some additional validation and selection.

All the contributors are mentionned at the bottom of the Pootle page.

To contribute, use Pootle:
http://translate.liferay.com/pootle/fr/portal/

To discuss about translations, use dedicated forums:
http://www.liferay.com/fr/community/forums/-/message_boards/category/6802014

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