* Fix 1.18 relocations
* Added new spigot-based backend for most of the functions.

This plugin might still crash on newer versions if you try to show an ItemStack on hover since it uses some APIs that are not replaceable by spigot's APIs (so it tries to hook into NMS code and it's quite volatile).
If it does please report it to github.

* Fix 1.17 NMS relocation (other great work from elgbar)

Yet another minor update, this only adds some default title, author and pages to the BookBuilder to prevent invalid book construction. This will help with new plugin developers but chance is that if your plugin works already this update will bring nothing new.

Seems like book titles must be at most 32 characters to be valid, this version just adds a check to ensure this (in larger programs it can be quite hard to debug).

* Fix 1.16.4 NMS bug (thanks elgbar)

* Fix 1.14.4 NMS bug (thanks flori-schwa)
* Deprecate the suggest_command action
* Enhance documentation and tests

Added 1.8 compatibility

Added the event CustomBookOpenEvent that gets called when a book is opened