Reimplementing Modernizr tests for auto playback and playback rate.
Added new version of jQuery Mobile Router, see mzedeler/jquerymobile-router, tag v0.93b.
Changed default behavior of router to throw errors in stead of trying to log them.
Replacing home grown async support for Modernizr with polyfill from one of the Modernizr authors. See https://github.com/stucox/modernizr-on.
Upgraded to jQuery Mobile 1.3.1.

Reorganized index.html for faster load and clearer references to Cakefile generated content.
Reimplemented playback rate settings.

Fixed issue #553: Write new Modernizr test for playbackRate using after playing hook.

Fixed issue 471: Unable to detect if playbackrate is working on IOS.