Extend tools to re-deploy dictionaries with a build number

[humenda]

Sometimes bugs in the tooling require a re-compilation of all dictionaries and
also require a new release, even though the source didn't change. Since we use
semantic versioning, we could re-release all non-source releases by appending a
build number, as for instance a.valid.version-1.

The workflow should be as follows:

• make deploy-src
  • deploys the source to fd.org
  • git tag, if version-controlled (optional)
• make deploy
  • obtain the source version mentioned in the edition tag of the
    dictionary
  • query last build number and increase by one
  • deploy the auto-generated binary distributions
    Ideally there would be a make deploy BUILD_NO= command to accomplish this.
    Deploying a new build version should make sure that the source release remains
    untouched.