Tether

This update adds the highly-requested feature that is WorldGuard support!

Changelog:

• WorldGuard Integration via “leash” flag.
• Flag is set to ALLOW by default.
• WorldGuard’s admin region bypass (/rg bypass) is respected.
• WorldGuard integration is automatic and always active as long as you have WorldGuard installed. (i.e. You do not have to enable it in the config).
• config.yml updates (updates automatically):
  • messages.in-claim-deny-mob → messages.target-mob-in-protected-land
  • messages.in-claim-deny-player → messages.target-player-in-protected-land

Thank you to @beacon and @drey in my discord for the suggestion.