Case T-49/09: Judgment of the General Court of 19 April 2012 — Evropaïki Dynamiki v Commission (Public service contracts — Community tendering procedure — Provision of services relating to the maintenance and development of the information systems of the Directorate-General for Regional Policy — Rejection of a tender — Action for annulment — Equal treatment — Obligation to state reasons — Infringement of essential procedural requirements — Manifest error of assessment — Non-contractual liability)