For people who were using LockettePro: BlockLocker can now read chests from LockettePro, so switching from LockettePro to BlockLocker is now possible. However, until a player first clicks on a chest, part of the player's UUID will appear on the sign. Normally, LockettePro uses a protocol hack to hide this UUID, but BlockLocker doesn't do this. Although this looks a bit funny, it is harmless.
For people using Towny: added a permission node called blocklocker.wilderness. This node is granted to players by default. However, if you negate this permission node using your permissions plugin, players will no longer be able to protect chests outside of Towny towns.
Removed lookup of outdated names. It only worked correctly for names that were in use in 2015 (just before name changing got introduced), so it became less and less useful over the years.