Re: [css3-images] image-rendering property for contrast-preserving image upscaling

I don't think we should introduce a new property. I think we should just add
new values to the image-rendering property. optimizeQuality and
optimizeSpeed should be deprecated.

Rob
-- 
"Now the Bereans were of more noble character than the Thessalonians, for
they received the message with great eagerness and examined the Scriptures
every day to see if what Paul said was true." [Acts 17:11]