change US_LOGIN from login to	identifiant (closes #3504) and US_WHATID from identifiant to "identifiant système"
change US_LOGIN from login to	identifiant (closes #3504)
and US_WHATID from identifiant to "identifiant système"

CircleCode/dynacase-core,CircleCode/dynacase-core,CircleCode/dynacase-core