Bukkit

• Allows for disabling of built in ownership! (Add "use_built_in_ownership: false" somewhere in your config)
• Added permission "bookshelf.openshelf" to allow anyone to open a shelf regardless of ownership. Ops default.
• Fixed villager trading. (It will still appear that the players can trade, but it's a client sided bug caused by 1.7.2. They shouldn't actually be able to trade, the items that are in their inventory after trading should be fake. Still though, I wouldn't rely on it until 1.7.9 or whatever is released.)
• Added "/bsedit" or "/bse" commands, allowing players to enter a "shelf edit mode," where they can modify the contents of an unlimited/shop/donation/etc shelf assuming they also have ownership.
• Fixed unlimited shelves not being unlimited at all (oops)
• Fixed a missing "donate" table causing errors for MySQL users.
• Fixed a bug preventing players with capitals in their names to be able to access shelves they own after adding another owner.

Sorry about the big delay and no responses. Life has been crazy! Still working on WorldGuard.

If you already updated to 3.5, update again. This is the second revision of 3.5 and fixes some bugs.