Changed a bunch, check extended desc

Added:
-setLocation method
-constructor from file
-added getScoreboardObjective & isObjectiveMet methods for score tracking
-added isWallBlock
-added get & set for players editing arenas
-added get & set for minigame
-added disabled logic
Removed:
-old location storage method
Changed:
-TeamG to MGTeam
-stuff from static to non-static for differences between arenas
-location storage

TODO: Synchronization to make sure nothing breaks