Drupal 7 - Adding multiple javascript files to an Omega subtheme

Adding a javascript to an Omega subtheme is a bit complex.
I'd rather use  scripts[] = js/chr.js in the info file, which works by the way, but for some reason you first need to add the js file as a library, and then enable it in the settings.
(see https://drupal.org/node/1416128 and https://drupal.org/node/1205984)
I this example I add one library containing two javascript files.

0. Add your javascript files in the js folder of your theme
(in this example I use files chr.js and chr2.js)

1. Add some code like this to your theme's info file
libraries[chromega][name] = CHR KHR main javascript
libraries[chromega][description] = Quirqks and Jeeeequery fun for th CHR website
libraries[chromega][js][0][file] = chr.js
libraries[chromega][js][0][options][weight] = 1
libraries[chromega][js][1][file] = chr2.js
libraries[chromega][js][1][options][weight] = 2
(you can use any name where I use chromega)

2. Go to your theme's settings page

3. Select tab toggle libraries and add your custom library

4. Clear you cache  

5. and then GO javascripting (I always forget the structure for the D7 javascript files so thats why I add this wonderfull example)

// JavaScript Document
// http://drupal.org/node/756722
(function ($) {
 //////////////////////////////////////////////////////////////////////////////////////// All code here
   $(document).ready(function() {
     // maak op d ehomepage beide blokken even lang
     dotherightthing();   
  });
  function dotherightthing(){
      alert('Do the right thing!');
  }
 ////////////////////////////////////////////////////////////////////////////////////////  end of all code
}(jQuery));


        ---

Nota bene
For some reason this (lazy) way of adding the javascript in the template file does not work

function themename_preprocess_page(&$variables) {
  drupal_add_js(path_to_theme() . '/js/chr.js');
}