updated bower components

- updated bootstrap-datepicker to 1.9.0
- updated chart.js to 1.1.1
- updated ckeditor to 4.12.1
- updated jquery to 3.4.1
- updated raphael to 2.2.7
- updated select2 to 4.0.8

bower_components/select2/tests/data/array-tests.js

@@ -193,7 +193,10 @@ test('multiple sets the value', function (assert) {
 
   var data = new ArrayData($select, arrayOptions);
 
-  assert.equal($select.val(), null);
+  assert.ok(
+    $select.val() == null || $select.val().length == 0,
+    'nothing should be selected'
+  );
 
   data.select({
     id: 'default',