Bukkit

v1.3

• Bug fixes.
• Added per world join titles.
• Ability to disable the creation and use of nether portals.
• Ability to limit number of mobs per world.
• Ability to disable explosions.
• Ability to disable player interaction.

v1.2

• Bug fixes.
• Added permission to override event.
• Added sign support: Amount of players in a world, status of a world and world teleport sign have been added.

v1.1

• Added auto-update support.

v1.0

• First release

- Can't seem to unload non custom worlds.