Javascript API Generator Issues

Whenever I download the javascript API for my custom business logic service I have to manually edit one of the files to make it work.

I have to add the following code to the beginning of the js file:

$.getScript(((window.location.protocol == 'file:') ? "http:" : window.location.protocol) + "//api.backendless.com/sdk/js/latest/backendless.min.js", function() {

$.holdReady(false);

Then I have to replace BackendlessUser with Backendless.User

Why is this necessary? Am I doing something incorrectly?