Release 1.8.9.1

Improvements:

• /top supports timespent now
• Allow any ASCII character in server name/motd

Fixes:

• Colour bleeding in /who when on a museum map (Thanks fam0r)
• Emotes in message breaking WoM
• Joining museums after joining a world not causing world to auto-unload
• /mark
• Changing fallback not auto-reloading clients that don't support custom blocks