Fixed a problem in iSCSI multipath

Multipathing for attach volume and detach volume operations
doesn't work properly if there are different targets
associated with different portals for a mulitpath device.

Change-Id: Iab316526cf64de60325d90043f73fa3e83fafb4e
Closes-Bug: #1266051
Fix copyright messages after admin actions split for V3 API

Adds copyright messages that were accidentally not duplicated
in the new files during the code separation.

Partially implements blueprint v3-api-admin-actions-split

Change-Id: Icc3be739f86be740ae06aecba9e5166cc49ef1e2
Fix assertEqual parameter order post V3 API admin-actions-split

Post admin-actions-split cleanup to fix the order of parameters
in assertEqual tests for the testcases split out during the
bp v3-api-admin-actions-split.

Was originally part of https://review.openstack.org/#/c/73724 but
was split out into a separate patch at the request of a reviewer.

Partially implements blueprint v3-api-admin-actions-split

Change-Id: I28332d595c073e518e1bcd4a3f945492904df5d3
Remove __del__ usage in vmwareapi driver

The vmwareapi driver uses __del__ in an inappropriate way, which
causes spurious errors to be displayed at inconvenient times. The
python docs clearly detail the caveats of using __del__ (and even
provide a big red warning). This removes the offending code, which
can't work reliably anyway.

Closes-bug: 1262288
Change-Id: I50acb4f1e85650f4c6dffe1a1d25842601be96bf
Merge "Fixed a problem in iSCSI multipath"
Merge "Fix copyright messages after admin actions split for V3 API"
Merge "Fix assertEqual parameter order post V3 API admin-actions-split"
Merge "Remove __del__ usage in vmwareapi driver"