Updated french dictionary version and variant

Updated french dictionary.
Based on the last version on the [dicollecte project](http://www.dicollecte.org/download.php?prj=fr) (official hunspell source used for mozilla and openoffice extensions).
Version is updated to 4.11 (from 4.5)
Variant is changed to classical (from modern), see more information in the updated description (French.txt), recommended dictionary was changed.
Licence is updated to MPL 2.0.