lib/assets/scripts/plato-sortable-file-list.js
function (key) {
        return _.sortBy(files, function (el) {
            return Number($(el).find('span[data-lint]').attr(key)) * -1;
        });
    }
function (key) {
        return _.sortBy(files, function (el) {
            return Number($(el).find('span[data-lint]').attr(key)) * -1;
        });
    }
work-horse @param:  key  The 'data-<key>' to sort by @return: descending sorted array of <li> elements