integration du patch de localisation #1317 (mortimer)

ecrire/action/export_all.php

ecrire/configuration/compteur.php

ecrire/configuration/reducteur.php

ecrire/exec/admin_declarer.php

ecrire/exec/admin_effacer.php

ecrire/exec/admin_tech.php

ecrire/inc/boutons.php

ecrire/inc/install.php

ecrire/inc/plugin.php

ecrire/inc/suivi_versions.php

ecrire/install/etape_1.php

ecrire/install/etape_2.php

ecrire/install/etape_sup1.php

ecrire/lang/ecrire_fr.php