snapToPixel cannot be set on a category basis.

[gskinner]

When we rewrote our class model, we changed from defining properties on the prototype to defining them in the constructor. This offered a fairly significant performance improvement, and is in-line with ES6 approaches. However, it means that you can no longer change the snapToPixel default for a class by doing something like: createjs.Container.snapToPixel = false;

This would still be useful functionality. We should explore how to add this back in.

Also, the documentation is incorrect on this functionality.