Bukkit

# 6.4

- Fix some issues with using lists of variables in equations getting out of order
- Add Cuboid effect, can work with a source and target location (good for showing cuboid selections)
- Add Pyramid effect
- Add "Particle" effect for simple repeating particles
- Add "Sound" effect for playing sounds or custom sounds, supporting volume and pitch-shifting
- Add "probability" parameter for randomizing effects
- Add "orient" parameter to Atom effect
- Add "variableA" and "variableB" parameters to Modified effect
- Add "particle_offset", shortcut for "particle_offset_x", y and z
- Add "center" option to Grid effect

# 6.3

- Bleed effect now uses a "material" rather than "color"
- Allow "forever" durations
- Allow "random" colors