Our font subsets do retain all of the OpenType features that are in the orginal font file from the foundary.
More information can be found at the following locations.
- http://hacks.mozilla.org/2010/11/firefox-4-font-feature-support/
- http://dev.w3.org/csswg/css3-fonts/#font-feature-settings-prop
- https://developer.mozilla.org/en/CSS/-moz-font-feature-settings
- http://www.microsoft.com/typography/otspec/featurelist.htm
