fixed english "New ticket notification!", replaced OTRS_CURRENT_USERFIRSTNAME with OTRS_USERFIRSTNAME
fixed english "New ticket notification!", replaced OTRS_CURRENT_USERFIRSTNAME with OTRS_USERFIRSTNAME

djoudi/otrs-gitimport-test,djoudi/otrs-gitimport-test,djoudi/otrs-gitimport-test