Add files entry to package.json.

[jamestalmage]

Removes unnecessary files from the deployed package.

Deploying unnecessary files impacts the performance of npm install for everyone.

See: https://github.com/insin/package-config-checker

[feross]

I personally don't think it's a good idea to ignore the test/ folder. That's documentation for the module that will now be missing when you're offline and need to look inside node_modules/ for the docs.

Ignoring huge test files is a good idea, but ignoring a few text files won't make a meaningful difference. npm install is primarily slow because of latency and roundtrips, in my experience. I don't think this is the right tradeoff.

Previous discussions:

nodejs/readable-stream#100
rvagg/through2#36
browserify/browserify#1093
browserify/sha.js#5
feross/string-to-stream#1
beatgammit/base64-js#16
mafintosh/csv-parser#43
feross/buffer#98

[jamestalmage]

Certainly .travis.yml and .zuul are not providing any value.

[feross]

Sure thing. Feel free to add an .npmignore file that ignores those.