ADDED:
- Added a command to set the final border size for each arena /hg bordersize <arena-name> <size=diameter>
- Added a command to set the center for an arena's border /hg bordercenter <arena-name>
- Added a command to set the timer for an arena's border /hg bordertimer <arena-name> <start=seconds> <end=seconds>
- Added an option to turn off block break protection during free roam

FIXED:
- Fix the player not properly respawning after death
- Fixed an issue with the game throwing NPEs to console

CHANGED:
- Remove jump boost particles from freeze