Case T-516/16 and T-536/16: Judgment of the General Court of 30 April 2019 — Alvarez and Bejarano and Others v Commission (Civil service — Officials — Members of the contract staff — Reform of the Staff Regulations — Less favourable scheme for the flat-rate payment of travel expenses and for the increase in annual leave by way of additional days off as travelling time — Link between the grant of those entitlements and the expatriate status — Abolition of the reimbursement of annual travel expenses and travelling time)