Rebuild Dino from Debian experimental on Byzantium

Given that the version in Debian experimental already works well on Librem 5 and it brings voice calls in addition to adaptive support and the work needed is just a simple rebuild. I think this version should be provided by default. I don't think waiting for a new upstream release is not good since the current default xmpp app chatty does not work well (omemo is not reliable, no groups, no calls) and this is a huge leap in the default experience.

I have rebuilt this and made it available at https://people.debian.org/~praveen/dino/