input range update release

Release of commit [cd70cc6de0e7208013ced996c4d230b51e1fe7f1](https://github.com/h5bp/html5please/commit/cd70cc6de0e7208013ced996c4d230b51e1fe7f1#diff-1ccbb010ad8b4a27d1911fd78ae9f02d)

* Fixed freqdec's Input Range polyfill url
* Add `rangeslider.js` as another polyfill