added sound property representing SoundManager instance to Game class
added sound property representing SoundManager instance to Game class

spayton/phaser,TukekeSoft/phaser,BeanSeed/phaser,BeanSeed/phaser,mahill/phaser,TukekeSoft/phaser,photonstorm/phaser,TukekeSoft/phaser,spayton/phaser,mahill/phaser,pixelpicosean/phaser,rblopes/phaser,photonstorm/phaser,englercj/phaser