The goal of this patch is to buil in the ability to upgrade
the alembic version table of both new and existing RefStack
databases in order to allow for the usage of subunit2sql tooling
within the existing db, thus facilitating the upload and storage
of subunit data in RefStack server.
[TEST CASES HANDLED]
* default name -> nondefault name
* nondefault name -> default name
* nondefault -> another nondefault
[OTHER ACTION ITEMS]
* tighten up workflow for cleaner code
Change-Id: I7aa0965b22a46439d66c81108fc0b8947316579d
3f3e80d7e6