Added extra checks to Sound.play to stop it throwing DOM Exception Error 11 if the `sound.readyState` wasn't set or the sound was invalid. Also wrapped `stop()`` call in a `try catch`.
Added init to State template class.
Removed redundant `tolerance` parameter from Rectangle.intersects (thanks @toolness #1463)
Phaser.Graphics.drawCircle now overrides PIXI.drawCircle which means the docs are now correct re: diameter not radius (thanks @ethankaminski #1454)
Updated to Pixi 2.2.0 release.
Added Pixi 2.2.0 details to README.
Time.reset would incorrectly reset the `_started` property, now maps it to `Time.time` (thanks @XekeDeath #1467)
Removed readyState check as it breaks overlapping sounds.
Fix #1468