Depends: ProtocolLib v3.6.x
It work on Spigot 1.8 only
How to install?
1.1 Drop the plugin "ForceTexturePack.jar" into your plugin folders.
1.2 Install Protocolib 3.6.x
3. Reload your Server
5. Configure the config.yml
6. Reload again.
7. It's Work ! Enjoy :)