Start separating code into files for each game state

Using StateManager: http://docs.phaser.io/Phaser.StateManager.html . Based off the game in https://developer.mozilla.org/en-US/docs/Games/Workflows/HTML5_Gamedev_Phaser_Device_Orientation , but not using object literals like that game does because that would require converting a lot of code. Instead, I return an object literal with preload, create, and update functions from within an anonymous function.
Style page heading as lighter than other text

It’s the most important text on the page