Bukkit

Default config.yml:

config:
  gamemodes:
    values:
      survival: 0
      creative: 1
      adventure: 2
    change:
      on-login:
        enabled: true
        mode: creative
  language: en
  debug-mode:
    enabled: false 

survival - custom survival mode value
creative - custom creative mode value
adventure - custom adventure mode value
on-login - changing gamemode automatically in given one on login
debug-mode - debugging every error in console
language - en/de/fr/nl