What is the OpenStack unified cli?

Issue

• The user experience with OpenStack CLI tools is a frustrating one right now due to a number of inconsistencies between the various tools, not to mention making a user know that keystone is the user/tenant tool and nova is the instance/flavor/image tools and glance is the image tool that replaces the image functions in nova. Those tools will remain as the reference implementation that comes bundled with the client libraries but a new unified (in spirit, if not in implementation) OpenStack CLI interface will provide a better user experience.
• Unified OpenStack CLI