Bukkit

From v1.3.1:

• Added support for Enderman, Silverfish and Cave Spider
• Some internal changes to config system
• Fixed bow detection for 1.8
• Count only mobs spawned outside is now blacklist instead of whitelist (less false positives)
• Added RewardEveryoneMinimumPoints
• Added ability to announce when someone signs up
• Added SuperPerms support
• Now supports all major economy systems via Register