Version 2.2

• Allow a particle to access its own corresponding ParticleData object on each emitter step.
• Allow user to provide a vector of coordinates for spawning particles at specific positions.
• XML support for custom subclasses.
• ZedEmitter - Particle engine for 2.5D billboard engine ZedBox.

Version 2.1

• Composite behavior trigger.
• Velocity overriding.
• XML support.