Fix tox -v skipping over sqlite unit test jobs
Fix tox -v skipping over sqlite unit test jobs

This PS fixes tox -v skipping over SQLite unit test jobs. tox -v
is used in CICD to run all jobs in tox envlist but currently
py{35,27}-{postgresql,} translates to:

   py35-
   py27-
   py35-postgresql
   py27-postgresql

Where the first two should instead be:

  py35
  py27

This PS also adds --regex flags to the unit test jobs so regular
expressions work with them.

Change-Id: Id468259a1b2e020494bdd58103d8750b4fac6000

att-comdev/deckhand,att-comdev/deckhand