Refactored enable and disable flow and added lots of jsdocs.
Refactored enable and disable flow and added lots of jsdocs.

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