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/bootstrap-slider/.bower.json

@@ -28,6 +28,6 @@
     "commit": "879a98dcd0923107363861e56423f3cc1c2472e7"
   },
   "_source": "https://github.com/pammacdotnet/bootstrap-slider.git",
-  "_target": "*",
+  "_target": "master",
   "_originalSource": "bootstrap-slider"
 }