* Remove jQuery
* Remove browser (vendor) prefixes for some CSS properties
* Use simple device orientation test
* Realign D-pad pointers
* Make GameBoy text unselectable
* Cleanup console.log
* Keep 90% size on mobile browsers due to gh-ribbon overlap
* Remove legacy `unselectable="on"` attributes
* Align UI buttons
* Remove not used UI elements
* Change Options button
* Don't show player change message when not in a game
* Add click/touch handler for circle-pad
