Added following commands:

• /heal
• /fly
• /spectator
• /speed
• /nickname
• /realname
• /tpa, /tpaccept, /tpdeny, /tpcancel

Added config.yml update on new plugin version (or missing settings in conig.yml server side)
Added clickable Warplist (with hover messages)
Moved all .yml (config) logic to the Settings class
Added onPlayerJoin event (for nickname)
Removed redundant function CommonlyUsed.addTeleportCooldown
Fixed some messages and removed some unused code/imports