Merge pull request #276 from Morphan1/master

Fix <player.equipment.X> tags
Update Playeffect command to new argument system. Add custom Hearts and Explosion effects to it.
Add ParticleEffect library. Allow all of its particles to be used by the Playeffect command.
Add Qty argument to Playeffect command. Fun example usage: - playeffect location:<npc.location> effect:heart radius:7 qty:100
Add Offset argument to Playeffect. Add RANDOM effect. Usage: - playeffect location:<npc.location> effect:random radius:30 qty:1000 offset:20
Make 'ex command' available to ops only.
Make syntaxes more 0.9.2-like