Merge pull request #2398 from NativeScript/milanov/update-typescript-to-2.1

Update TypeScript to 2.1

Author: rosen-vladimirov

lib/common

@@ -88,15 +88,15 @@
     "grunt-contrib-copy": "1.0.0",
     "grunt-contrib-watch": "1.0.0",
     "grunt-shell": "1.3.0",
-    "grunt-ts": "6.0.0-beta.3",
+    "grunt-ts": "6.0.0-beta.6",
     "grunt-tslint": "3.3.0",
     "istanbul": "0.4.5",
     "mocha": "3.1.2",
     "mocha-fibers": "https://github.com/NativeScript/mocha-fibers.git",
     "mocha-typescript": "^1.0.4",
     "should": "7.0.2",
     "tslint": "3.15.1",
-    "typescript": "2.0.7"
+    "typescript": "2.1.4"
   },
   "license": "Apache-2.0",
   "engines": {

package.json

@@ -6,7 +6,8 @@
 		"declaration": false,
 		"removeComments": false,
 		"noImplicitAny": true,
-		"experimentalDecorators": true
+		"experimentalDecorators": true,
+		"alwaysStrict": true
 	},
 	"exclude": [
 		"node_modules",