Update devDependencies including jQuery to v3.4.1.

package.json

@@ -109,7 +109,7 @@
     "@babel/preset-env": "^7.4.4",
     "autoprefixer": "^9.5.1",
     "babel-eslint": "^10.0.1",
-    "babel-plugin-istanbul": "^5.1.3",
+    "babel-plugin-istanbul": "^5.1.4",
     "broken-link-checker": "^0.7.8",
     "bundlesize": "0.15.3",
     "clean-css-cli": "^4.3.0",
@@ -121,7 +121,7 @@
     "hammer-simulator": "0.0.1",
     "http-server": "^0.11.1",
     "ip": "^1.1.5",
-    "jquery": "^3.3.1",
+    "jquery": "^3.4.1",
     "karma": "^3.1.4",
     "karma-browserstack-launcher": "^1.5.1",
     "karma-chrome-launcher": "^2.2.0",
@@ -131,7 +131,7 @@
     "karma-qunit": "^3.1.2",
     "karma-sinon": "^1.0.5",
     "node-sass": "^4.12.0",
-    "nodemon": "^1.18.11",
+    "nodemon": "^1.19.0",
     "npm-run-all": "^4.1.5",
     "popper.js": "^1.15.0",
     "postcss-cli": "^6.1.2",
@@ -145,7 +145,7 @@
     "sinon": "^7.3.2",
     "stylelint": "^9.10.1",
     "stylelint-config-twbs-bootstrap": "^0.3.1",
-    "uglify-js": "^3.5.9",
+    "uglify-js": "^3.5.10",
     "vnu-jar": "18.11.5"
   },
   "engines": {