Use external libraries in XS Engine

Question

I'm trying to use third party Javascript libraries for my projects in the XS Engine. Let's assume I'm writing a script that has two direct dependencies:
my-app.js
|-- dependency-a.js
  |-- dependency-b.js
        |-- subdependency-b1.js
        |-- subdependency-b2.js
How can I make dependency-a.js and dependency-b.js (including their dependencies) available for my-app.js in the XS Engine?
Does the XS Engine support some kind of package management / module system (like CommonJS)?
Currently the only method I found for one Javascript file to depend on another is to make the dependency an *.xsjslib file and import it. This isn't a feasible solution in my scenario, because:
1. Pretty much all server-side libraries I want to use are modules based on CommonJS (mainly written for Node.js), and would have to be adapted
2. Not all libraries I use have been validated by JSLint, so HANA doesn't actually allow me to activate them till they are (is there a way to disable JSLint?)

Answer 1

UPDATE:
The error I reported below was in my js code. Not sure where, but doesn't appear to be an "XS issue".
For others looking at this thread, below is a more detailed example for your reference.
STRUCTURE:
-Content
--MyPackage
---MyApp.xsjs
---MyLib.xsjslib
MyApp.xsjs code:
$.import("MyPackage","MyLib");
var x = $.MyPackage.MyLib.MyObject.MyFunction("my test string");
$.response.setBody(x);
MyLib.xsjslib code:
var MyObject:{
     MyFunction: function (myString) {
          return = "You passed in the string: " + myString;
ORIGINAL:
I'm getting the following error:
Found the following errors:
===========================
TypeError: "xml2json" is read-only (line 146 position 0 in /sales/xml2json.xsjslib)
here is my import code:
$.import("sales","xml2json");
xsjslib and xsjs are in the same package, sales, as shown below.
Content
-Sales
--ccw.xsjs
--xml2json.xsjslib