Ideas
  * remote copy container to another container
  * check local is same as remote
  * syncup/syncdown (like rsync with delete)
  * use container: /path/syntax like rsync?
  * Allow subpaths container:/sub/path
  * allow local/local too
  * progress reports
  * stats
  * Add bandwidth limit?

make 100% compatible with swift.py?

Make Env vars compatible with st?

Get and put the metadata in the libray (x-object-meta-mtime) when getting and putting a file?

This also puts meta-mtime
https://github.com/gholt/swiftly

As an integer, but it does parse it as a float
subargs.append('x-object-meta-mtime:%d' % getmtime(options.input_))

Need an iterate all objects routine... Could use a channel
- could just be a flag to Objects()

FIXME progress meter would be nice! Do this by wrapping the Reader with a progress bar

Do bandwidth limit by wrapping the Reader too
  Maybe using https://jra-go.googlecode.com/hg/linkio/ which will work for multiple
  uploads or downloads. 
  * code.google.com/p/mxk/go1/flowcontrol - only does one flow at once
Or maybe put into swift library.

Windows paths? Do we need to translate / and \?

Make swift timeouts be settable with command line parameters

Make a wrapper in connection which
  * measures bandwidth and reports it
  * limits bandwidth using Reader and Writer
  * for a pool of all individual connectinos
  * does timeouts by setting a limit, seeing whether io has happened
    and resetting it if it has

Check the locking in swift module!

Need to make directory objects otherwise can't upload an empty directory
  * Or could upload empty directories only?

Make a fs.Errorf and count errors and log them at a different level