lock typescript at 2.0.0

Author: borysn

frontend/package.json

@@ -101,7 +101,7 @@
     "ts-node": "^1.3.0",
     "tslint": "^3.15.1",
     "tslint-loader": "^2.1.5",
-    "typescript": "^2.0.0-beta",
+    "typescript": "2.0.0",
     "url-loader": "^0.5.7",
     "webpack": "^2.1.0-beta.21",
     "webpack-dev-server": "^2.1.0-beta.0",