Welcome to LWC!
LWC is a protection plugin for blocks such as chests, furnaces, doors, and any block you can dream up! LWC has the ability to protect any block you want it to, automatically or manually. Wether its for a small server so prevent grief or a huge server to make people have a safe vault it's always a good thing to have.
Please see the page Bukkit 1.8 for more info on getting the new doors & fence gates working on Minecraft 1.8.