Bukkit

By placing the box twice to solve some to hang onto box (such as torch) placed the problem of failure
Solve the problem of old and new block permutation table can not actually take effect

1. Additional data block did not restore
2. Partial blocks, such as door will be placed fails
3. Construction orientation is not adjustable, only to identify dead each coordinate direction of increasing construction
4. (not tested) high version of the box in the lower versions may cause problems
5. Since the extension area did not read, do not support the MOD block