Forward arguments from GameObjectFactory#plugin
Forward arguments from GameObjectFactory#plugin

Fixes #486

Thanks @koalaylj

yupaul/phaser-ce,yupaul/phaser-ce,photonstorm/phaser-ce,yupaul/phaser-ce,yupaul/phaser-ce,photonstorm/phaser-ce,photonstorm/phaser-ce,photonstorm/phaser-ce