Bukkit

• Special signs now disappear when testing a map in creation mode (and they come back when leaving test mode, fortunately).
• Added "pressure plates as special blocks" option in configuration.yml: if enabled, pressure plates will be used to detect players on special blocks instead of constantly checking their location when they move. Consequently, this option improves performance when there are many players. It can be disabled in some specific maps using the new "/cp noplates" command.
• Improved special sign regeneration when editing maps.
• Added ability to set exit location's pitch and yaw in configuration.yml.
• Changed "memory dump interval" default value to 20 minutes because this option can improve performance on big servers.
• Various performance improvements.
• Reduced the time limit before downloading a new map.
• Fixed extreme lag and server crash when synchronizing huge leaderboards.
• Fixed ghost download bugs.

Make sure to report any problem, and contact me for any question or idea. Let's make a good quality plugin together!