Update compatibility information for new color syntax in Chrome/Opera (#1968)
Update compatibility information for new color syntax in Chrome/Opera (#1968)

https://crrev.com/532032, which landed support for decimal numbers in rgb/rgba, actually landed in Chrome 66 instead of 67 per https://storage.googleapis.com/chromium-find-releases-static/f8e.html#f8e89bb9a450bca698c8c522aded1030ea1cd681.

Also add compatibility information for Android versions and Opera based off of these base Chrome version numbers.
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data,teoli2003/browser-compat-data