v0.1.1

• Add Public Health England data for more granular stats in the UK.
• Available on WhatsApp and Telegram.
• Send a welcome message to new rooms.
• Improve !help messages.
• Add !announce to notify all rooms.
• Gracefully handle rate limiting.
• Cleanup empty rooms once per day.
• Send m.text instead of m.notice so it plays nicely with WhatsApp bridge.