Control status will be replaced by job-specific output at some point.
Task was not useful anymore with state machine, may reintroduce
something similar at a later point, but consider alternatives:
- opentracing.io
- embedding everything in ctx
- activity stack would work easily
- log entries via proxy logger.Logger object
- progress reporting should be in status reports of individial jobs
Version is autodetected on build using git
If it cannot be detected with git, an override must be provided.
For tracability of distros, the distroy packagers should override as
well, which is why I added a README entry for package mainatiners.
refs #35
