Bukkit

- Add: New setting to limit the access of each player. This could be used to create a chest, where all friends added can only view the contents but not edit them.
- Fix: Editing a door may have resulted in an exception.
- Fix: Info Inventory was accessible on unlocked blocks.
- Some major changes to the friend management. This includes a breaking change for friends, however I have implemented a simple system that aims to convert the old data structure to the new, it is however not thoroughly tested and your friends might not be copied over successfully. Please be aware of this!

A detailed changelog can be found at GitHub.