Case T-17/09: Judgment of the General Court of 22 May 2012 — Evropaïki Dynamiki v Commission (Public services contracts — Tender procedure — Provision of informatics services for an electronic exchange of social security information project (EESSI project) in the field of the coordination of social security for persons mobile in Europe — Rejection of bid submitted by a tenderer — Award of the contract — Obligation to state the reasons on which the decision is based — Transparency — Equal treatment — Manifest error of assessment — No interest in bringing proceedings — Non contractual liability)