mochajs/mocha — pull request #1459 by bajtos (2014-12-01 09:31:28+00:00)
Title: update CONTRIBUTING.md, mention plugins

Quoting from #1454:

> Users get upset when you don't merge their PRs. I think contributing to this is that users do not have a clear, documented way to develop a plugin, so they feel like the only way that their feature will ever see the light of day is if it gets merged.

This PR updates CONTRIBUTING.md and adds a note that people should try to write new features as plugins.