code: function CDNUp(bucket, options) {
    options = options || {};
  
    this.sharding = !!options.sharding;
    this.urls = arrayify(options.url || options.urls);
    this.mime = options.mime || {};
    this.check = options.check;
    this.bucket = bucket;
    this.client = pkgcloud.storage.createClient(options.pkgcloud || {});
    this.acl = options.acl;
    this.subdomain = options.subdomain;
  }
docs: CDNup is our CDN management API.
  
  Options:
  
  - sharding: Use DNS sharding.
  - env: Optional forced environment.
  - url/urls: Array or string of a URL that we use to build our assets URLs
  - mime: Custom lookup object.
  
  @constructor
  @param {String} bucket bucket location of where you want the files to be stored.
  @param {Object} options Configuration for the CDN uploading.
  @api public