Added js-url v1.8.3
- The filenames on github changed to url.js and I made the same change in the relative package.json

Files taken from: https://github.com/websanova/js-url
- https://github.com/websanova/js-url/blob/master/url.js
- https://github.com/websanova/js-url/blob/master/url.min.js
Merge pull request #1704 from bettiolo/js-url-v1.8.3

Added js-url v1.8.3