Lodash needs to be downgraded to be compatible with ts2.0.

Author: trevex

package.json

@@ -57,7 +57,7 @@
     "typescript": "~2.1.0",
     "zone.js": "^0.6.25",
     "rimraf": "^2.5.4",
-    "@types/lodash": "^4.14.37",
+    "@types/lodash": "ts2.0",
     "@types/jasmine": "^2.5.35"
   },
   "dependencies": {