Acknowledgements. The Planck Collaboration acknowledges the support of:\n\t\t\t\t ESA; CNES, and CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF\n\t\t\t\t (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MINECO, JA\n\t\t\t\t and RES (Spain); Tekes, AoF, and CSC (Finland); DLR and MPG (Germany...