Changed
* Removed the clear screen effect between operations. There are good
reasons to leave the existing content on the terminal window when
using vbart so you can scroll back and reference your command history.
Added
* Added separate command line option to display version information.
* Added proper citation for the [docker library][def], and included the
Apache 2.0 license that comes with it.
Removed
* *Nothing*
Fixed
* Improved help tips on the command line.
* Fixed a possible file type incompatability when building the alpine
utility image.
* Code refactored for better maintainability.
Deprecated
* *Nothing*
[def]: https://github.com/docker/docker-py