Updated bootstrap to 4.1.3 and removed vunerablities

Author: viveksdf

Angular2/package.json

@@ -23,8 +23,8 @@
     "aspnet-prerendering": "^3.0.1",
     "aspnet-webpack": "^2.0.1",
     "awesome-typescript-loader": "3.2.1",
-    "bootstrap": "3.3.7",
-    "css": "2.2.1",
+    "bootstrap": "^4.1.3",
+    "css": "^2.2.4",
     "css-loader": "0.28.4",
     "es6-shim": "0.35.3",
     "event-source-polyfill": "0.0.9",
@@ -42,7 +42,7 @@
     "style-loader": "0.18.2",
     "to-string-loader": "1.1.5",
     "typescript": "2.4.1",
-    "url-loader": "0.5.9",
+    "url-loader": "^1.1.1",
     "webpack": "2.5.1",
     "webpack-hot-middleware": "2.18.2",
     "webpack-merge": "4.1.0",
@@ -53,11 +53,11 @@
     "@types/jasmine": "2.5.53",
     "chai": "4.0.2",
     "jasmine-core": "2.6.4",
-    "karma": "1.7.0",
+    "karma": "^3.0.0",
     "karma-chai": "0.1.0",
     "karma-chrome-launcher": "2.2.0",
     "karma-cli": "1.0.1",
     "karma-jasmine": "1.1.0",
-    "karma-webpack": "2.0.3"
+    "karma-webpack": "^3.0.5"
   }
 }