Polymer/platform — pull request #38 by peterwmwong (2013-08-24 22:22:15+00:00)
Title: Add shadowcss shadowdom polyfill to build

While testing on mobile safari and Firefox (23.0.1), errors would occur with the concat and minified builds of polymer.
I narrowed it down to `ShadowCSS.js` and `patches-shadowdom-polyfill.js` not being built.