The final version of Corebot, cleaned up for this site.

• Removed a hidden direct-message command that let two outside accounts download the bot's settings and token, or shut it down.
• Removed eval, which was open to outside accounts by default.
• Removed the code and key commands, which only worked with Corebot's shut-down servers.
• Pastes use paste.helpch.at, since Corebot's paste site no longer saves.
• Fixed mcuser: player pictures load again and unknown names get a clear message.
• Original default settings, no add-ons and no music. See the README inside.