Custom Buffer for streaming writes
Swift download: only call setHeader if defined
Adding support for volume type creation in Cinder.

Also cleans up some misnamed copy+pasting in volume type all.
Merge pull request #19 from gierschv/feat-swift-buffer

Custom Buffer for streaming writes
Merge pull request #20 from gierschv/fix-swift-pipe

Swift download: only call setHeader if defined
Merge pull request #21 from JohnPostlethwait/volume_type_create

Adding support for volume type creation in Cinder.
Bump version