feat(package): upgrade to ng v2.3+ (#574)

scripts/typings.d.ts

@@ -0,0 +1,17 @@
+// Typings reference file, you can add your own global typings here
+// https://www.typescriptlang.org/docs/handbook/writing-declaration-files.html
+
+// tslint:disable
+
+declare const System: any;
+declare const ENV:string;
+// google code-prettify
+declare const PR:any;
+
+declare const global:any;
+
+declare module jasmine {
+  interface Matchers {
+    toHaveCssClass(expected: any): boolean;
+  }
+}