Implement fallback URLs for same script

[felipemsantana]

It allows to pass an array of URLs to one script, so it will try in order and if one fails, it will try the next.

Usage:

nautilus.config({
  paths: { 
    jquery: [
      'https://public.cdn.com/libs/jquery.min.js',
      'https://private.cdn.com/libs/jquery.min.js',
      'https://s3.com/libs/jquery.min.js',
      '/libs/jquery.min.js'
    ] 
  }
});
nautilus(['jquery']);

It will try to load the script once in the following order:

1. https://public.cdn.com/libs/jquery.min.js
2. https://private.cdn.com/libs/jquery.min.js
3. https://s3.com/libs/jquery.min.js
4. /libs/jquery.min.js

[raphamorim]

Amazing @fmatoss, to merge it: Can you add this sample in README?

[felipemsantana]

Done @raphamorim

[raphamorim]

👍