Corrected name of volumes client in fixture imports

Change-Id: Ife02107bb9811889258ee0e6e8418b57b6f34540
Moving CLoud init to proper place

    * In extensions

Change-Id: I23ad483857c323d7ecd2dfd6116396b665226780
Merge "Moving CLoud init to proper place"
Blockstorage test refactor and buildout

* Fixes and expands blockstorage test fixtures
* Adds working auth integration to blockstorage.
* Adds blockstorage data driven test dataset list generator class.
* Adds volume type dataset list generator.
* Adds volume and snapshot datadriven smoketests.
* Updates os-volume_attachments api integration to reflect upstream
  changes.
* Updates compute volume integration tests to reflact upstream changes.
* Fixes broken snapshot smoke tests.

Change-Id: I9eb4731aa4f76068d7e58a4046d5c1459d7c1547
Correcting asserted exception

Change-Id: Id2d638adbbfcc0d1b6eb3326d7634147126b641b