Production-ready versioning + docker + migrations

[omid]

Seems like:

• there is no git versioning (tagging)
• the existing docker is only for development
• there is no migration, only the dbinit.sql

We need to have a production-ready code here, with proper versioning, production-ready docker, and migration scripts.

[fmeringdal]

Yep, definitely some work needed to make it more production ready. I think the server should follow SemVer versioning, the same goes with the SDK.
Do you think we need a separate binary to handle the migration process?

[omid]

I would say yes.

Because normally we need to run it while deployment, and in case we have several instances of the server, it will be executed several times.

[omid]

I address the migration part of this issue, within #23