NickAPI 3.0.0 with several of bugfixes
The plugin is no longer in beta.

Thanks to Papiertuch for finding the bugs!
Logs in the final version:
- Fixed a bug whether players have not been removed while leaving the server
- Fixed a bug whether nicked names are displayed x-times
- Fixed a bug whether original names are displayed x-times
- Added api#refreshPlayer and #getPlayerObjectByNickedName

These bugs only occured because of the uuidspoof. It costed me a lot of time for find bugs with Papiertuch and fix it.

Discord: https://discord.gg/uFhUc2W

The API has been changed.
The newest version of NickAPI requires ProtocolLib and will NOT work without it. Use 4.4.0 for 1.8 - 1.13 and 4.5.0 for 1.14 servers.

I completely rewrite the NickAPI with a lot of bugfixes and new features.

Information about NickAPI 3.0
Logs:
- Added new API methods, see overview for further information
- Fixed a lot of bugs which happened in the earlier versions of NickAPI
- Decided NOT to change the name of player in the GameProfile. Instead of this, you can use the api#setTabComplete method to prevent auto completing
- You can now separately change the skin and the nametag -> this means as an example: You can nick yourself into Notch and give a skin of Herobrine
- Opened a discord server for support, talk etc. (Ok, it has nothing to do with this plugin )