Fixed a few jsdoc errors.
Keyboard.stop nulls the function references after removing the event listeners (thanks @bmceldowney, #691)
Updated p2 to https://github.com/schteppe/p2.js/commit/6abc900ff9ae6ad1e22216a70a4f9f75acb7dd44 (which has probably broken stuff, but we'll test it tomorrow).
New Phaser package, small docs updates and preparing P2.World for new bounds code and v0.5.0 migration.