Slider, dungeon loot, massive server-side update, Aechor Plant and more bugs!

Getting close to finishing AetherMP

Things added in this update:

1. Slider
2. Dungeon loot (all items and entities included)
3. Massive server-side update for entities (bukkit and Essentials integration)
4. Aechor Plant
5. Fixed gravitite tools world bypass
6. More bugs!