Gravitational Lensing Accuracy Testing 2010 (GREAT10) Challenge Handbook by Kitching, T, Balan, S, Bernstein, G, Bethge, M, Bridle, S, Courbin, F, Gentile, M, Heavens, A, Hirsch, M, Hosseini, R, Kiessling, A, Amara, A, Kirk, D, Kuijken, K, Mandelbaum, R, Moghaddam, B, Nurbaeva, G, Paulin-Henriksson, S, Rassat, A, Rhodes, J, Schölkopf, B, Shawe-Taylor, J, Gill, M, Shmakova, M, Taylor, A