Don't crash the demo apps on Android when an uncaught exception was thrown

Author: EddyVerbruggen

demo-ng/app/package.json

@@ -1,8 +1,9 @@
 {
   "android": {
-    "v8Flags": "--expose_gc"
+    "v8Flags": "--expose_gc",
+    "discardUncaughtJsExceptions": true
   },
   "main": "main.js",
   "name": "tns-template-hello-world-ng",
   "version": "3.3.0"
-}
+}

demo/app/package.json

@@ -26,7 +26,8 @@
   },
   "homepage": "https://github.com/NativeScript/template-hello-world-ts",
   "android": {
-    "v8Flags": "--expose_gc"
+    "v8Flags": "--expose_gc",
+    "discardUncaughtJsExceptions": true
   },
   "devDependencies": {
     "nativescript-dev-typescript": "^0.3.0"