Bukkit

First real release.

• Queue template chunks for unloading
• Change Maven groupId
• Static plugin instance getter
• Allow resetting areas over time via a task, to avoid hanging the server
• Actually ask for the biome data in ChunkSnapshot
• Fix two crashes due to source code derps

• Pure-bukkit implementation takes really, really, really, really, really, really long
• No 1.5.2 implementation, so it falls back on pure-bukkit