Resolves #64, usage and help

[jmonster]

nconf.argv({
  "p": {
    alias: 'port',
    describe: 'Port the server should listen on',
    demand: false
  }
}, 'Usage: $0')

if (nconf.get('help') || nconf.get('h')) {
  return nconf.stores.argv.showHelp()
}

[jmonster]

Build failed on travis but passes locally with npm test :|

[mattlgy]

👍
Passes tests locally for me too, and works in my project.

[andrefs]

Is this goind to be merged into master anytime soon?

[jmonster]

this project seems pretty much abandoned; I've started using optimist directly in my projects and checking for ENV variables manually.

[jmonster]

Touché.