Legal Eagle 
A library for listing the licenses of an npm module's dependencies.
Basic Usage
Provide the path to the module in question and a callback. Your callback will
be passed a hash with the name@version of each dependency as a key and its
license, source, and sourceText.
legalEagle = require 'legal-eagle'
legalEagle {path: process.cwd()}, (err, summary) ->
return console.error(err) if err?
console.log(summary)Optional Parameters
Omit Permissive Licenses
Pass omitPermissive: true in the params hash to only list unknown or
non-permissive licenses in the summary.
License Overrides
If you know the license of a given dependency but this library can't
automatically determine it, pass an overrides hash with its name@version as
the key and the license, source and sourceText you want to use in the
summary.