Bukkit

- remove unused functions and permissions
- add restore timer( block teleport to this world )
- restore timer can set for each world
- add command list( is used after join a restore world before restore timer is over for each player )
- updatet for 1.5.1 ( rewrite most of code )
- seperate cooldown timer for each world
- restore timer is set to the plugin start time +2sec at the first, every further restore timer is set to the last restore time + 2sec ( the 2sec addition is set because the restore duration isn't calculable)
- to avoid the chest duplication bug you have to set a "WorldRestore" cooldown in the config to 120 seconds