Cleanup.
Add plugin statistics for Bungee.
Improve configuration description.
Simplify.
Correctly encode json data.
Use singleton collection instead of list.
Remove unused method.
Add missing final.
Add warning when profile is disabled.
Readd stupid fix for CraftBukkit.

Meh.
The Bukkit plugin depends on ProtocolLib at the moment.
Add an extra note for CraftBukkit inside the configuration.