Fix repo links in package.json
Add main property to package.json
Remove engines from package.json
Rewrite currency.js to use request in stead of http, and remove requireJS
Write new cli.js, and remove old bin/currency
Remove console.log
Merge pull request #1 from matiassingers/package-json-fixes

Minor package.json fixes
Merge pull request #2 from matiassingers/complete-rewrite

Complete rewrite of currency.js
Write initial tests for currency.js using Mocha