Release 1.3 is now live!

[sargonas]

We've released v. 1.3.0 in a final production status!

Thanks for all the help over the last two months chasing down bugs and hiccups in our 1.3 beta builds! Thanks to you, we've now released 1.3 in production mode!

The full changelog https://github.com/Chia-Network/chia-blockchain/releases/tag/1.3.0