A rake task for updating the caniuse.com data. and the initial import
Basic API for working with the caniuse.com data.
expose the caniuse api to the stylesheets.
some docs for the caniuse api.
Generic stylesheet features for browser support using caniuse. Used on the animation module.
depend on the json gem for 1.8.7 support.
Tests for the new support functions.
Browser support debugging mode.
Update appearance mixin.
Update background-clip to use new browser support features.
port background-origin to the new system.
update background-size and remove some tests for khtml.
Move border-radius to caniuse data.
Move set-arglist-default() to the support module.
Migrate box-shadow support to caniuse infrastructure.
Migrate box-sizing to caniuse.
Move the old utilites to a deprecated module so that old deprecated code can use it for the time being.
update the columns module to caniuse data.
Handle browsers that change their prefix.

Add support for the filter property.
updating user-select, input-placeholder to use new CanIUse prefixing