Implement OS::Cinder::VolumeAttachment

This creates a new volume attachment resource with Cinder specific
naming.

Change-Id: Ie73b929925c58e47f3509d57dd385cbd4ea5a4c1
update on_devstack doc

udpate the prebuilt-jeos-image from F16 to F17

Change-Id: Iae1456e4811c029494a8c2878c9bf0c3221bc43a
Fixes: bug #1180416
Merge "Implement OS::Cinder::VolumeAttachment"
Fix PEP H101 (Use TODO(NAME))

Change-Id: I77c9caa650462725b7c686fbafd9753d046b138d
Merge "update on_devstack doc"
Remove unrelated tracebacks from test output

This mocks some calls the ThreadGroup when testing update and delete of
the stack, resulting in tracebacks when the threads randomly run later
on in the test suite.

Change-Id: Ia1a376933c2e25b6cf0fe6a26f47e381cbb1a55e
Fixes: bug #1182285
Stub out sleeps in quantum unit tests

The patch 5d86e2f2ece51a79102aee2af9a3f306c929aaea
added wait states into the unit tests for quantum networks, routers and
ports, but did not stub out the resulting sleep. This caused the tests to
run for over 1s, which indirectly allowed bug #1182285 to become visible.

Change-Id: Id26daa87e1618533ee92c33827a9d01800b03752
Verify function calls in cinder_fn_getatt unit test

Change-Id: I6a7f03a7b91fb9604ea16e5a60bc12f84ebb9657
Merge "Stub out sleeps in quantum unit tests"
Merge "Verify function calls in cinder_fn_getatt unit test"