What got deployed to production this morning

A few details were left unresolved with previous push to production
here are the things resolved for today:

* When accessing file at www.webplatform.org/css/ it redirects to docs even for actual CSS files
* Forgotten to add tracking code (piwik)
* Headers that are in wiki that werent in the static pages
* Polyfills that are used but forgot to use them in static, added back