1) Supporting `remoteRegistrationId` on sending messages. Now showing
warning before sending the message if key conflict exists. Fixes#574
2) Upgrading dependencies: adapting to new libPhoneNumber API.
3) Fixes race condition in database code.
4) Fixing ordering bug. Hopefully once and for good.
- Sublassing errors in case of expected behaviour
- When receiving a new message that was using a previously unknown
identity key, we search for any other messages that are encrypted with
the new accepted key and decrypt those too.
- Addressing some of the warnings we had before.
Frederic Jacobs
Christine Corbett
dtsbourg