Replace nomnom with commander

[cherewaty]

Recommended migration path from nomnom: https://github.com/harthur/nomnom/blob/master/README.md

Resolves #103

zaach/jison#367 also needs a merge to remove nomnom from the dependency chain.

[mbrookes]

Could this be merged please? jsonlint (and therefore Material-UI) is getting flagged by tidelift.com / libraries.io due to this upstream dependency.

[FrontEndStudio]

nomnom: Package no longer supported. https://www.npmjs.com/package/nomnom

[mbrookes]

@FrontEndStudio Judging by the lack of activity on this repo, it would seem jsonlint is also no longer supported (no commits, PRs merged, or issues responded to or closed in over a year).

@zaach If that's the case, it might be a good idea to flag this as unsupported in the README, deprecate on npm and archive the repo. Alternatively, there are quite a few forks showing recent activity. Perhaps one of those people would be happy to take over?

[eaviles]

@zaach any news? is there any way we can help here?

[mbrookes]

This appears to be the most active and well maintained fork: https://github.com/prantlf/jsonlint
cc @prantlf.

(I just don't understand why someone would abandon a library used in over 30,000 projects, rather than shut it down gracefully or hand it off to someone else to maintain.)