code: function(parentLocation, folderName) {
  			var that = this;
  			return this._getEntry(parentLocation).then(function(dirEntry) {
  				var d = new orion.Deferred();
  				dirEntry.getDirectory(folderName, {create:true}, function() {d.resolve(that.read(parentLocation + "/" + folderName, true));}, d.reject);
  				return d;
  			});
  		}
docs: Creates a folder.
  @param {String} parentLocation The location of the parent folder
  @param {String} folderName The name of the folder to create
  @return {Object} JSON representation of the created folder