This will remove the current .drone.yml which isn't used anymore, update the
Makefile target and move tests to using `t.Skip` instead of `t.Fatal` if no
database exists during tests. This is so it's possible to develop new tests
that may not require a database.
- Call defer store.StopCleanup(store.Cleanup(time.Minute * 5)) after store creation.
- Does not break the existing API (optional, but recommended)
- Based on https://github.com/yosssi/boltstore/reaper
- Deletes expired sessions (where expireson > now())
- Includes tests
