Handle non-player vehicle passengers
Remove helper lookup for protected entities

Seems to have some issues with loaded/unloaded chunks. Might not be
useful in its current state, and might not be worth fixing
Convert to BukkitRunnable in AutoRefMap
Sign updates with version strings, shift-click to install map
Fix InvalidStateException with config reloads and match restarts
Fix no-client night vision (set once, enormously long duration)
Add acheivement points for crafting recipes. Addresses #24