Changelog:
I skipped 1.2. This is the like the language update

• Added the language option to config.yml. If this is set to custom, the messages in messages.yml can be changed.
• Added messages.yml, which automatically updates whenever the server reloads or configs are reloaded.
• Added the following languages (language code, language):
  • af Afrikaans
  • ar Arabic
  • ca Catalan
  • cs Czech
  • da Danish
  • de German
  • el Greek
  • en English
  • es-ES Spanish
  • fi Finnish
  • fr French
  • he Hebrew
  • hu Hungarian
  • it Italian
  • ja Japanese
  • ko Korean
  • nl Dutch
  • no Norwegian
  • pl Polish
  • pt-BR Portuguese, Brazilian
  • pt-PT Portuguese
  • ro Romanian
  • ru Russian
  • sr Serbian (Cyrillic)
  • sv-SE Swedish
  • tr Turkish
  • uk Ukrainian
  • vi Vietnamese
  • zh-CN Chinese Simplified
  • zh-TW Chinese Traditional
• Added bStats
  For the full changelog, go to the commits of the 1.3 branch.

Any issues can be reported on the GitHub issues page.