Android v1.8.2

• Optimized message delivery for offline peers. Before client tried to connect to the same IPs it got from tracker after it hasn't connected to them in the first place. Now, if the client can't connect to locally cached IPs and gets the same from tracker it doesn't try to connect again.
• Message delivery of outgoing message was not updated always. Fixed.
• Added contact info screen. You can see contact's name and public key, as well copy it.
• Reworked Mimir's links handling. It is way better now.
• For my account and contacts accounts added QR-code generation. You can scan friend's QR-code to add their contact easily. (Just use any other scanning app.)