Handle metadata args the same for all calls.

key-create stored it's metadata arg as an appended list,
while create stored as strings.  The metadata parsing
is compatable with both, so let's just use the same
method of parsing in both of these methods.

Change-Id: I337068d45fa848d8621add29c91e4a43c9d7dc72
Fix upload-to-image volume_id help

It's not for taking a snapshot.

Change-Id: I3af4ea0e3657a2359fda55c890a030fabaad129d
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
Merge "Fix upload-to-image volume_id help"
Merge "adding v2 support to cinderclient"
Setting CinderClient to use v2 api by default

Change-Id: I1f8f3308df99b4c9cbd3c1e5652eca8fff90075b