Commission Implementing Regulation (EU) No 499/2011 of 18 May 2011 amending Regulation (EU) No 945/2010 adopting the plan allocating to the Member States resources to be charged to the 2011 budget year for the supply of food from intervention stocks for the benefit of the most deprived persons in the EU and derogating from certain provisions of Regulation (EU) No 807/2010