Port to the python cliff library

Registered by Steve Baker on 2013-01-09

Using cliff would provide the following benefits:
- cleaner more maintainable code base
- a bunch of features that the client would get with no effort

https://cliff.readthedocs.org/en/latest/

Blueprint information

Status:
Not started
Approver:
Steve Baker
Priority:
Undefined
Drafter:
Steve Baker
Direction:
Needs approval
Assignee:
None
Definition:
Approved
Series goal:
None
Implementation:
Unknown
Milestone target:
None

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