Rebuild and host binaries for tagged releases
So the Bitbucket download repo was nuke by Atlassian when they removed support for Mercurial... so we lost our binaries.
For the sake of preservation, we should rebuild
1.2 for all three platforms and host them somewhere.
We can see if GitLab finally lets us add more than 10 MB files to tags, otherwise I guess we'll have to go with a GitHub Releases mirror.
Then we should also update the website which currently has dead links for 1.2.