Version 0.9.10

• List of chatrooms with unread messages
• New logic for attach-revoke
• Improved management of heartbeats
• Remove false alarm about order verification
• Rotate key upon user's leave
• Backwards compatibility for old attachments JSON format
• Remove users who cancel the account
• Better management of reconnect retries
• Improved tests
• Keep subscribed for presence status of ex-contacts (if peer in groupchats)
• Notifications about chatd connection state