Commit 542a8b776e4e0e84372bc8bba3e2809685d1c858

Joe Tsai 2015-10-29T09:50:19

Clarify Section 7.3 * Acknowledge the fact that the context map is conceptually really a two-dimensional matrix with 2 different keys, but in reality stored as a one-dimensional array. * Mention that InverseMoveToFrontTransform will not cause the context map to have invalid indexes. This gives someone implementing a decoder sanity that they do not have to go through the context map again and check that all values are less than NTREES.