Beta 1.2.1 -- Faster send support + a bug fix

To get any benefit of this update you'll need to upgrade your server to v1.2.1 as well. Backwards compatible, yada yada. When combined with an updated server you will have essentially instant send times (with essentially 100% success rates) if the conversation has just one recipient. Group messages still need the slow UI automation.

Also, I fixed an issue where every single sent message would be marked as sent the second it was dispatched when I intended for it to be shown as "sending..." and then finally show "sent" when it is actually sent on the server.

Mid week update, found some time to work on this project. Might not get an update this weekend, finals and all that.