Despite the Bukkit suffix being correct in terms of the API, the name causes some people to download CraftBukkit instead of Spigot or Paper. All internal references to Bukkit have been renamed to Spigot.
* Added Bukkit run message
* Added the rest of the plugins run messages
* Renamed plugin run classes to main
* Added gui message if the jar isnt run from command line
* Updated help message
* Changed wording for bukkit