Use new syntax for application.start

Use the new syntax for application.start method, so set minimum required runtime versions to 1.6.0.

Author: rosen-vladimirov

app.ts

@@ -1,4 +1,2 @@
-import application = require("application");
-application.mainModule = "./tns_modules/nativescript-unit-test-runner/main-page";
-application.cssFile = "./tns_modules/nativescript-unit-test-runner/app.css";
-application.start();
+import {application} from "application";
+application.start({ moduleName: "./tns_modules/nativescript-unit-test-runner/main-page" });

package.json

@@ -17,5 +17,9 @@
     "grunt-ts": "^5.0.1"
   },
   "nativescript": {
+    "platforms": {
+        "android": "1.6.0",
+        "ios": "1.6.0"
+    }
   }
 }