Replaced 'Editer' with 'Modifier'
Merge master
Revert "Revert "Added french translations in 'page' extension""

This reverts commit cd5289854c824ca07284227e7932e942251b43ea.
Revert "Revert "Added french translations in 'installer' extension""

This reverts commit bd6d59310da8ae971a51135d0c1c2a473ff415e6.
Have to revert the revert because "installer" translations have been deleted...
Merge origin/page_french_translation