fix: spread-operator on objects requires tslint, removed requiredment

Author: m-abs

src/package.json

@@ -79,10 +79,10 @@
         "promise-polyfill": "^7.1.2",
         "prompt": "^1.0.0",
         "rimraf": "^2.6.2",
-        "tns-core-modules": "^4.0.1",
-        "tns-platform-declarations": "~4.0.0",
+        "tns-core-modules": "^4.1.0",
+        "tns-platform-declarations": "^4.1.0",
         "tslint": "^5.0.0",
-        "typescript": "~2.6.0"
+        "typescript": "~2.7.0"
     },
     "dependencies": {},
     "bootstrapper": "nativescript-plugin-seed"

src/webview-ext-common.ts

@@ -194,7 +194,7 @@ export class WebViewExtBase extends View {
             return this.injectWebViewBridge()
                 .then(() => args)
                 .catch((error) => {
-                    return {...args, error};
+                    return Object.assign({}, args, {error});
                 })
                 .then((args) => {
                     this.notify(args);