Update pbr usage to modern understandings

Explicitly, d2to1 is the devil. Updated pep8 issues.

Change-Id: I35307f820a98244f5a9ae32ce01f18ce7b434c19
Remove HTTPS as a option and *

Change-Id: I9cffefd502683691eed3cb3f5864b1db426445fd
[API]: Handle no device attached on delete

If no device was attached to the LB during a delete (manual deletion inside
MySQL happened) the LB would be stuck in PENDING_DELETE forever and an
exception would occur in the logs.

Now when this case is detected we just mark the LB as DELETED.

Change-Id: I2b420b46cce9f51294464a58637e24a140744c58