Hi Finnsson,
The pager.js amd implementation relies on jQuery lib registers itself as the global variable "$", which is true by default. But developer may choose to use jQuery noConflict to turn off global variables "$" and "jQuery" to conform with the idea of AMD.
http://requirejs.org/docs/jquery.html#noconflictmap

Should not this

define('pager', ['knockout', 'jquery'], function (ko) {
    return pagerJsModule($, ko);
});

be updated to

define('pager', ['knockout', 'jquery'], function (ko, $) { ... });

?