Merge pull request #4 from kapouer/esm

Export an actually working es6 module

Author: miraclx

package.json

@@ -3,10 +3,14 @@
  "version": "1.6.2",
  "description": "Parse bytes to human readable sizes (4747) → ('4.75 KB') and vice versa.",
  "main": "dist/index.js",
+ "exports": {
+ "require": "./dist/index.js",
+ "import": "./dist/index.mjs"
+ },
  "types": "typings/index.d.ts",
  "scripts": {
  "test": "jest",
- "build": "babel lib -d dist",
+ "build": "babel lib -d dist && (cat dist/index.js; printf '\nexport default xbytes;') > dist/index.mjs",
  "preversion": "npm run build",
  "version": "npm test",
  "postversion": "git push gitlab master && git push github master"