Add a cli
Fix defaults
Don't accept empty elements
Create saner output when we have no candidate vol
Don't use the tempfile.TemporaryDir ctx mgr

Not available on older Pythons
Filter our and reproduce fio warning messages
Rename to cloudbench
Update README with new name
Add runner scripts and bump version
Update README
Update setup.cfg
Fix invalid error message
Take more properties into account for assets

We are now using a more generic approach, which includes the size of the
volume, or PIOPS.

Note: Work isn't done on GCE yet, because the metadata API doesn't
return volume size.
Bump version
CLI fixes
Properly convert non-int benchmark results
Logging --> Logger in CLI
Use correct Physical Assets, not Abstract
Bump version and fix CLI using root logger
Use simplejson & decimal to send 5 decimal places