Changes:
- Added support for Minecraft 1.17.
- Changed the internal system for how BossBar announcements work.
- The progress of bar announcements can now be disabled.
- Player specific placeholders using PlaceholderAPI now work on bar announcements.
- Updated the config with a slightly new format. (The plugin should automatically update the config).
- Added tab completion to the ultrabar command.
- Added tab completion to the actionbar command.
- Added the ability to cancel a bar with a specific id for a certain player.
- 1.17+ no longer relies on NMS.
- The boss bar announcement will now appear first when the player joins the game.
- Fixed a bug where the WorldGuard extension would not work properly. (1.13+ only)
- Fixed a bug where /ultrabar hooks would not display the correct information on certain versions.
- Fixed a bug where the World Whitelist did not work properly.
- Fixed a memory leak with toggled players.
- Fixed an issue with PlaceholderAPI not working correctly on reload.