Changelog

Version 0.1a 
* Classes and Listeners created.

Version 0.2a 
* Listeners tested (confirmed right click on signs, place sign with correct line0)

Version 0.3a
* Players can now sell/buy/lease claims and subclaims by putting a sign with the top line of [re]
* Checks to make sure that the player has permission to sell
* Rechecks sellers ownership when player buys a claim
* When players purchase a region the sign is destroyed and a sign is dropped

Version 0.4a
* Plugin no longer throws an exception when a sign is placed outside a GP Claim (thanks BigScary!)

Version 0.4.1a
* Compiled against CraftBukkit 1.2.5-R1.3