Add spigot as submodule
Remove spigot submodule
Add spigot submodule
Add spigot installation to build-script
Update book-dupe submodule
Merge branch 'master' of github.com:MinerAp/minerap-workspace

* 'master' of github.com:MinerAp/minerap-workspace:
  Update README.md
  Update README.md
  Update README.md