* Added 1.11 version support
* Added 1.12 version support
* Added 1.13 version support
* Added 1.14 version support
* Added 1.15 version support
* Added 1.17 version support
API Changes * Removed TimeConverter class from API
* Deprecated PAPIManager, PAPIPlaceholder, SubPlaceholder and PlayerJumpEvent
* Added 1.18 to ServerVersion enum (for preparation for that update)
* Added VersionChecker.getVersion method
* Optimized DeltaPlugin.registerCommands method
* Optimized GUI utility
* and other minor things