Upgrade Phaser engine to 2.0.5

from 2.0.4

phaser.min.js downloaded from https://github.com/photonstorm/phaser/releases

Phaser 2.0.5 change log: https://github.com/photonstorm/phaser/blob/560a44f06e89e44a2c1a9b97995262ecd64a4dbf/README.md#change-log
Fix bad copy-paste for cheater text

Put the text on a layer, and correct the variable name