Rearrange client code
Remove extra space
Merge branch 'master' into refactor-client

* master:
  Add more brainstorming notes
  Remove trailing whitespace
  Add gameplay options
  Delete unused phaser.js
  Change to use minified phaser.min.js
Rearrange code and rename some functions
Extract constants
Extract more constants
Remove unnecessary client-side Bricks class
Add and clarify console.log statements
Prevent game from pausing when browser tab loses focus
Reorder variable declarations
Move var game declaration to top
Rename bricksGroup to bricks
Wrap entire client in anonymous IIFE with defensive semi-colon
Make ball and paddle position changes use Body.x instead of Sprite.x
Fix and refactor ball on paddle positioning
Rename BOTTOM_TEXT_Y to TEXT_Y
Rename introText to infoText
Extract function startNewRound
Refactor client 'new player' and 'remove player' handlers
Refactor server 'new player', 'remove player' and replace Bricks.js with string