Removed debug code
Fixed bug where players would get teleported back to the spawn point when the game starts
Called the super method for onJoin and onQuit
Teleport the players to the hub world spawn instead of a possibly missing on unloaded world
Fixed players being able to place blocks in the arena when they shouldnt be able to
Updates the arena signs when a player quits a game and when the game ends
Possible fix to invalid session.lock error where the world may possibly be null
Possible fix to player keeping velocity after respawning
Removed the UOE from onProjectileLaunch
Clears the players inventory when they join the game
Sets PVP to false when loading the arena world
Code optimization
Updated javadocs and code formatting