Changed the way SignShop handles Essentials sign conflicts.
Changed config loader to a customized loader instead of bukkit's
Added framework for language support coming in version 2.4 (if you would like your native language to be supported, help us translate our config! More information on this page.)
There is no nice way for plugins to store the information written in books for 1.3 yet, so we cannot add buying and selling books until the Bukkit team updates their API.