Use webpack to deliver newest d3-tip.js, highlight.js and vis.js

package.json

@@ -4,13 +4,16 @@
     "bootstrap": "^4.1.3",
     "bootswatch": "^4.1.3",
     "chosen-js": "^1.8.7",
+    "d3-tip": "^0.9.1",
     "font-awesome": "^4.7.0",
+    "highlight.js": "^9.12.0",
     "jquery": "^3.3.1",
     "jquery-ui": "^1.12.1",
     "jstree": "^3.3.5",
     "opensans-webkit": "^1.0.1",
     "popper.js": "^1.14.4",
     "underscore": "^1.9.1",
+    "vis": "^4.21.0",
     "webpack-merge": "^4.1.4"
   },
   "devDependencies": {