Bukkit

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• Compatibility updates for 1.3.1
• Fixed the 'missing world' warnings (had to do with inventories)

From previous tickets I read some about world lists with players not on the worlds, and one about portals not being saved to portals.txt I could not reproduce or test either of those, so it could still be present, unless CB itself fixes these problems. If you still have this problem, remind me in the tickets present already or post on the main page.