** Thanks to Occamy Gaming for reporting the new bugs **
in this update I've fixed some bugs.
I also improved the codes a bit.
Fixed block breaking which players were able to break blocks even if they were in arena.
Fixed API.
Fixed a bug in arena editor gui which showed fake details about block break & world border.
changed the default world border setup when you created a new arena to false.
added a new option in messages.yml
fixed players would'nt teleport to the enabled arena when they joined the server & bungee mode was on
Changed safezone wand name to PositionSelector Wand
Fixed a bug that was related to player killed by another player.