* Update print styles for new sidebar behavior
* Hide copy icons in print output
* Wait for mathjax rendering to complete before printing
* Remove old wrapping css
Browsers this old are already hilariously broken, so we don't need these fallbacks.
* Change mathjax script type
Chrome won't execute this if it's not marked as js
* Ensure page has rendered before printing
In certain situations Chrome willl fire window.onLoad before it's
done rendering. Add a 100ms delay to work around this.
