Rewrite the "Transform Rendering Model" section with a more precise description of the model. Substantive changes include a new 'auto' value for transform-style, the concept of a "3D-rendering context" (akin to CSS stacking context), and a better description of the rendering order.

Author: smfr

css-transforms/ChangeLog

@@ -1,3 +1,6 @@
+2014-10-24 Simon Fraser <simon.fraser@apple.com>
+    Rewrite the "Transform Rendering Model" section with a more precise description of the model. Substantive changes include a new 'auto' value for transform-style, the concept of a "3D-rendering context" (akin to CSS stacking context), and a better description of the rendering order.
+
 2014-10-24 Simon Fraser <simon.fraser@apple.com>
     Move the section about perspective rendering closer to the mathematical description.