Enforce the use of plugins

Hi, dthree

This is Tomás Corral a Javascript Developer that have followed your work in the NodeJs community for a long time.

I didn't know how to contact you so I decided to open an issue to contact you.
I would like to listen your opinion about a NPM module I created for creating CLI tools using "vorpal" allowing people writing their own plugins.

The url of project is:
- http://commular.github.io

The url of the github repo is:
- https://github.com/commular
- https://github.com/commular/commular

My idea is to enforce good practices in CLI tools to doing easier the tests of those tools.

I will really appreciate what do you think...
- About the project
- How can it be improved?
- How to move it better in the community?
- Would you like to collaborate with the project creating some plugins?

Kind Regards.