Update karma dependencies et al

ui/package.json

@@ -65,15 +65,15 @@
     "imports-loader": "^0.6.5",
     "jsdom": "^9.0.0",
     "json-loader": "^0.5.7",
-    "karma": "^1.3.0",
+    "karma": "^2.0.0",
     "karma-cli": "^1.0.1",
-    "karma-mocha": "^1.1.1",
+    "karma-mocha": "^1.3.0",
     "karma-phantomjs-launcher": "^1.0.2",
     "karma-sinon-chai": "^1.2.4",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-verbose-reporter": "^0.0.6",
     "karma-webpack": "^2.0.9",
-    "mocha": "^2.4.5",
+    "mocha": "^5.0.1",
     "mocha-loader": "^0.7.1",
     "mustache": "^2.2.1",
     "node-sass": "^4.5.3",