Arvados

The main versions are tagged in git (e.g. current release version `1.1.4`). However, package versions on the -dev deployment streams (such as xenial-dev) are not tagged. This means every time we need to figure out what source code corresponds to our build we need to go trawling through the commit log to find a matching date. It would be helpful if the package deployment included a step which tagged the github repo with the version of the built dev package (e.g. `1.1.4.20180524153119`).