chore(deps): upgrade to ngtools 1.3.3

Author: GiuseppePiscopo

package.json

@@ -46,7 +46,7 @@
   },
   "devDependencies": {
     "@angular/compiler-cli": "4.1.3",
-    "@ngtools/webpack": "1.3.1",
+    "@ngtools/webpack": "1.3.3",
     "angular-router-loader": "~0.5.0",
     "angular2-template-loader": "~0.6.2",
     "autoprefixer": "~7.1.1",