Merge pull request #1 from wido/master

rbd: allocate memory for rbd_snap_list
Implement constructor for rados_create2.

Signed-off-by: John Wilkins <john.wilkins@inktank.com>
Implement interface for rados_crate2.

Signed-off-by: John Wilkins <john.wilkins@inktank.com>
Merge pull request #7 from ceph/wip-rados_create2

Wip rados create2