Fix: mobs clearing every arena reset (and improved logic).
Fix: debug message.
Feature: improvements at spectator mode.
This version introduces:
Teams and duels models (also maintain "normal" mode).
New placeholders.
New scoreboard management system based on performance.
Fixed the 3 known bugs of previous versions
A new hotbar.yml to modify Lucky Pillar's hotbar items (much more will be added so close).
