Bukkit

fixes: 
-after the last player logs out, there is a async error
-air can be selected as a remote control

tweak:
-new extended lights for the extended jukebox
-outdated config gets renamed to config_old instead of delete

added:
-command: /juke config set <name value from config> <new value> (change any config setting)
-command: /juke remote add (adds the item into the config list)
-command: /juke remote remove (removes the item from the config list)
-config options like same_disc, remote_items
-permission: jukebox_command_remote, jukebox_command_remote_add and jukebox_command_edit_config